{"id":5769,"date":"2025-12-25T00:44:53","date_gmt":"2025-12-25T00:44:53","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5769"},"modified":"2025-12-25T00:44:53","modified_gmt":"2025-12-25T00:44:53","slug":"thread-tensile-stress-area-chart-metric-inch","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/fr\/blog\/thread-tensile-stress-area-chart-metric-inch\/","title":{"rendered":"Tableau des aires de contrainte de traction des fils\u00a0: m\u00e9trique et imp\u00e9rial"},"content":{"rendered":"<div style=\"max-width: 1200px; margin: 0 auto; padding: 20px; font-family: Arial, sans-serif; line-height: 1.6; color: #333;\">\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Introduction aux zones de contrainte de traction des fils<\/h2>\n<p style=\"margin-bottom: 15px;\">L'aire de contrainte de traction d'un filetage, souvent not\u00e9e As, repr\u00e9sente la section transversale effective supportant la charge de traction dans les fixations filet\u00e9es. Ce param\u00e8tre est essentiel en conception m\u00e9canique pour calculer la r\u00e9sistance et la capacit\u00e9 de charge des boulons, vis et autres composants filet\u00e9s. Il tient compte de la g\u00e9om\u00e9trie du filetage et est calcul\u00e9 \u00e0 partir de normes industrielles \u00e9tablies, telles que GB\/T 16823.1-1997 pour les filetages m\u00e9triques et ASME B1.1 pour les filetages unifi\u00e9s en pouces.<\/p>\n<p style=\"margin-bottom: 15px;\">En ing\u00e9nierie, la connaissance pr\u00e9cise de la zone de contrainte garantit des conceptions s\u00fbres et efficaces, pr\u00e9venant les d\u00e9faillances sous charges axiales. Ce tableau fournit des donn\u00e9es compl\u00e8tes pour les filetages m\u00e9triques (norme ISO) et imp\u00e9riaux (norme unifi\u00e9e), incluant diff\u00e9rents pas et nombres de filets. Utilisez cette ressource pour l'analyse structurale, le choix des fixations et la conformit\u00e9 aux normes internationales.<\/p>\n<ul style=\"list-style-type: disc; margin-left: 20px; margin-bottom: 15px;\">\n<li>Les filetages m\u00e9triques sont sp\u00e9cifi\u00e9s en millim\u00e8tres, couvrant les tailles de M1 \u00e0 M70.<\/li>\n<li>Les filetages en pouces comprennent les s\u00e9ries UNC (gros) et UNF (fin), de #1 \u00e0 3-3\/4 pouces.<\/li>\n<li>Toutes les valeurs sont v\u00e9rifi\u00e9es par rapport \u00e0 des formules standard afin d'en garantir la fiabilit\u00e9.<\/li>\n<\/ul>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Tableau des aires de contrainte de traction des filetages m\u00e9triques (Unit\u00e9s : mm)<\/h2>\n<p style=\"margin-bottom: 15px;\">Le tableau suivant pr\u00e9sente le diam\u00e8tre nominal, le pas (P) et la section de contrainte de traction (As en mm\u00b2) des filetages m\u00e9triques. Ces donn\u00e9es proviennent de la norme GB\/T 16823.1-1997, qui d\u00e9finit les sections de contrainte et d'appui des \u00e9l\u00e9ments de fixation filet\u00e9s. Notez que pour chaque diam\u00e8tre, plusieurs pas sont indiqu\u00e9s, le cas \u00e9ch\u00e9ant, correspondant aux options de filetage \u00e0 pas fin et \u00e0 gros pas.<\/p>\n<div style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 14px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Fil<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Pas P (mm)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Zone de contrainte As (mm\u00b2)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Fil<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Pas P (mm)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Zone de contrainte As (mm\u00b2)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Fil<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Pas P (mm)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Zone de contrainte As (mm\u00b2)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.46<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">84.27<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M36<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">914.54<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">88.13<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M36<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">939.85<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.59<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">92.07<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M39<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">975.76<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.65<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">96.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M39<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1028.39<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.73<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">115.44<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M39<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1082.41<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">124.55<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M39<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1109.94<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.98<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">134<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M42<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1120.92<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">156.67<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M42<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1148.93<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.27<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">167.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M42<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1205.98<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.57<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">178.17<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M42<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1264.42<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">192.47<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1306.01<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.04<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">204.18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1336.23<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.07<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">216.24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1397.71<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">228.63<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1460.57<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.48<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">244.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M48<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1473.16<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.03<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">257.98<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M48<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1537.67<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.39<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">271.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M48<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1603.57<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">285.38<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M48<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1670.85<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.03<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">303.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1757.84<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.61<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">318.06<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1828.25<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.78<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">333.06<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1900.05<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">348.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1973.22<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.78<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">352.51<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M70<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3254.39<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.79<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">384.42<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M70<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3446.88<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.32<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">400.89<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M70<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3545.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.76<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">417.71<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M70<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3644.9<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M27<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">459.41<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M70<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3695.27<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M27<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">495.74<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M27<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">514.43<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.03<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M27<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">533.46<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">28.86<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M30<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">560.59<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">31.14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M30<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">621.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">36.61<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M30<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">642.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">39.17<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M30<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">663.34<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">41.81<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M33<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">693.56<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">57.99<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M33<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">760.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">61.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M33<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">783.91<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">64.49<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M36<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">816.73<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">67.88<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M36<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">864.94<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Formule de calcul pour les filetages m\u00e9triques<\/h2>\n<p style=\"margin-bottom: 15px;\">La surface de contrainte de traction pour les filetages m\u00e9triques est calcul\u00e9e \u00e0 l'aide de la formule\u00a0:<\/p>\n<p style=\"margin-bottom: 15px; font-style: italic;\">Comme = (\u03c0 \/ 4) \u00d7 [(d\u2082 + d\u2083) \/ 2]\u00b2<\/p>\n<p style=\"margin-bottom: 15px;\">O\u00f9:<\/p>\n<ul style=\"list-style-type: disc; margin-left: 20px; margin-bottom: 15px;\">\n<li>d\u2082 : Diam\u00e8tre primitif de base du filetage ext\u00e9rieur (selon GB\/T 196).<\/li>\n<li>d\u2083 : Diam\u00e8tre mineur du filetage ext\u00e9rieur, calcul\u00e9 comme d\u2083 = d\u2081 \u2013 H\/6.<\/li>\n<li>d\u2081 : Diam\u00e8tre mineur de base du filetage ext\u00e9rieur (selon GB\/T 196).<\/li>\n<li>H : Hauteur du triangle fondamental (selon GB\/T 192).<\/li>\n<\/ul>\n<p style=\"margin-bottom: 15px;\">Cette formule garantit un calcul pr\u00e9cis pour les filetages personnalis\u00e9s ou non standard, conform\u00e9ment aux exigences de la norme ISO 898-1 en mati\u00e8re de r\u00e9sistance des fixations.<\/p>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Tableau des aires de contrainte de traction des fils en pouces (Unit\u00e9s\u00a0: pouce)<\/h2>\n<p style=\"margin-bottom: 15px;\">Ce tableau fournit des donn\u00e9es sur les filetages unifi\u00e9s en pouces, notamment le diam\u00e8tre nominal (d), la taille en pouces, le nombre de filets par pouce (n) et la section de r\u00e9sistance \u00e0 la traction (As en pouces carr\u00e9s). Il couvre les s\u00e9ries UNC (gros pas) et UNF (fin pas), conform\u00e9ment \u00e0 la norme ASME B1.1.<\/p>\n<div style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 14px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Diam\u00e8tre nominal d<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Taille (pouces)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Fils\/n<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Surface de contrainte As (in\u00b2)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Diam\u00e8tre nominal d<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Taille (pouces)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Fils\/n<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Surface de contrainte As (in\u00b2)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.073<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">64<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.00262<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.073<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">72<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.00278<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.086<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">56<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.0037<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.086<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">64<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.00393<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.099<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">48<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.00486<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.099<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">56<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.00523<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.112<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">40<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.00603<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.112<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">48<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.0066<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.125<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">40<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.00796<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.125<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">44<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.00831<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.138<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">32<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.00909<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.138<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">40<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.01014<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.164<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">32<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.01401<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.164<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">36<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.01473<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.1875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.01695<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.1875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">32<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.01937<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.216<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.02416<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12#<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.216<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">28<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.02579<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.03182<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">28<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.03637<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5\/16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.3125<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.05243<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5\/16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.3125<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.05807<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3\/8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.375<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.07749<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3\/8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.375<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.08783<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7\/16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.4375<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.10631<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7\/16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.4375<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.11872<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.1419<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.15995<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9\/16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.5625<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.18194<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9\/16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.5625<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.20298<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5\/8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.625<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.226<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5\/8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.625<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.25596<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.33446<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.37296<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7\/8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.46173<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7\/8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.50947<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.60575<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.66304<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1-1\/8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.125<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.76328<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1-1\/8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.125<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.85572<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1-1\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.96911<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1-1\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.07295<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1-3\/8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.375<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.15488<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1-3\/8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.375<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.31471<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1-1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.40525<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1-1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.58102<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1-3\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.89946<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.49823<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2-1\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.24769<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2-1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.99883<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2-3\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.93401<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.96737<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3-1\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.09891<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3-1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.32862<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3-3\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.65651<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Formule de calcul pour les filetages en pouces<\/h2>\n<p style=\"margin-bottom: 15px;\">La zone de contrainte de traction pour les filetages en pouces unifi\u00e9s est calcul\u00e9e comme suit\u00a0:<\/p>\n<p style=\"margin-bottom: 15px; font-style: italic;\">Comme = 0,7854 \u00d7 [d \u2013 (0,9743 \/ n)]\u00b2<\/p>\n<p style=\"margin-bottom: 15px;\">O\u00f9:<\/p>\n<ul style=\"list-style-type: disc; margin-left: 20px; margin-bottom: 15px;\">\n<li>d : Diam\u00e8tre nominal en pouces.<\/li>\n<li>n : Nombre de fils par pouce.<\/li>\n<\/ul>\n<p style=\"margin-bottom: 15px;\">Cette approximation d\u00e9coule du diam\u00e8tre effectif et est largement utilis\u00e9e dans les normes ASME et SAE pour les calculs de r\u00e9sistance des boulons.<\/p>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Applications et importance en conception m\u00e9canique<\/h2>\n<p style=\"margin-bottom: 15px;\">Les zones de contrainte de traction sont essentielles pour d\u00e9terminer la charge de traction admissible des fixations filet\u00e9es \u00e0 l'aide de la formule\u00a0: F = As \u00d7 \u03c3, o\u00f9 \u03c3 est la r\u00e9sistance \u00e0 la traction du mat\u00e9riau. Cela permet de\u00a0:<\/p>\n<ol style=\"list-style-type: decimal; margin-left: 20px; margin-bottom: 15px;\">\n<li>S\u00e9lection des boulons de dimensions appropri\u00e9es pour les assemblages structuraux dans les secteurs de l'automobile, de l'a\u00e9rospatiale et de la construction.<\/li>\n<li>Garantir le respect des coefficients de s\u00e9curit\u00e9 dans les applications \u00e0 forte charge telles que les r\u00e9cipients sous pression ou les machines.<\/li>\n<li>Optimisation des conceptions par comparaison des filetages grossiers et fins en termes de r\u00e9sistance \u00e0 la fatigue ou de facilit\u00e9 d'assemblage.<\/li>\n<\/ol>\n<p style=\"margin-bottom: 15px;\">V\u00e9rifiez toujours les propri\u00e9t\u00e9s des mat\u00e9riaux et les longueurs d'engagement conform\u00e9ment aux normes pertinentes afin d'\u00e9viter un sous-dimensionnement ou un surdimensionnement.<\/p>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Foire aux questions (FAQ)<\/h2>\n<dl style=\"margin-bottom: 15px;\">\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">Quelle est la diff\u00e9rence entre la zone de contrainte de traction et la zone du petit diam\u00e8tre ?<\/dt>\n<dd style=\"margin-bottom: 15px;\">La zone de contrainte de traction (As) est une zone effective qui tient compte de la g\u00e9om\u00e9trie du fond de filet et qui est g\u00e9n\u00e9ralement plus grande que la zone du diam\u00e8tre int\u00e9rieur afin de refl\u00e9ter la r\u00e9partition r\u00e9elle de la charge. Elle est utilis\u00e9e pour les calculs de r\u00e9sistance, tandis que la zone du diam\u00e8tre int\u00e9rieur est purement g\u00e9om\u00e9trique.<\/dd>\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">Comment le pas affecte-t-il la zone de contrainte dans les filetages m\u00e9triques\u00a0?<\/dt>\n<dd style=\"margin-bottom: 15px;\">\u00c0 diam\u00e8tre \u00e9gal, un pas plus petit engendre des zones de contrainte plus importantes car il augmente le diam\u00e8tre effectif. Par exemple, dans un filetage M12, un pas de 1 mm donne une surface As de 96,1 mm\u00b2, contre 84,27 mm\u00b2 pour un pas de 1,75 mm.<\/dd>\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">Ces valeurs s'appliquent-elles aussi bien aux boulons qu'aux vis\u00a0?<\/dt>\n<dd style=\"margin-bottom: 15px;\">Oui, ces zones de contrainte s'appliquent aux filetages ext\u00e9rieurs des boulons et vis, conform\u00e9ment aux normes GB\/T 16823.1 et ASME B1.1, pour des profils de filetage standard. Pour les filetages int\u00e9rieurs, les zones de cisaillement peuvent diff\u00e9rer.<\/dd>\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">Pourquoi utiliser des fils fins plut\u00f4t que des fils grossiers ?<\/dt>\n<dd style=\"margin-bottom: 15px;\">Les filetages fins offrent des zones de contrainte plus importantes et une meilleure r\u00e9sistance \u00e0 la fatigue gr\u00e2ce \u00e0 des fonds moins profonds, ce qui les rend id\u00e9aux pour les applications soumises \u00e0 des vibrations. En revanche, les filetages grossiers facilitent l'assemblage et offrent une r\u00e9sistance au cisaillement sup\u00e9rieure.<\/dd>\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">Comment calculer la zone de contrainte pour les filetages non standard ?<\/dt>\n<dd style=\"margin-bottom: 15px;\">Utilisez les formules fournies avec des dimensions pr\u00e9cises issues de GB\/T 196 ou ASME B1.1. Pour plus de pr\u00e9cision, mesurez d\u2082 et d\u2083 ou consultez des outils logiciels conformes \u00e0 la norme ISO 898-1.<\/dd>\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">La conversion entre les syst\u00e8mes m\u00e9trique et imp\u00e9rial est-elle simple\u00a0?<\/dt>\n<dd style=\"margin-bottom: 15px;\">Non, en raison des diff\u00e9rences de filetage. Convertissez les unit\u00e9s (1 po\u00b2 = 645,16 mm\u00b2), mais choisissez les dimensions \u00e9quivalentes en fonction des exigences de charge, et non en fonction d'une correspondance dimensionnelle directe.<\/dd>\n<\/dl>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction aux zones de contrainte de traction des filetages. La zone de contrainte de traction d'un filetage, souvent not\u00e9e As, repr\u00e9sente la section transversale effective supportant la charge de traction dans les fixations filet\u00e9es. Ce param\u00e8tre est crucial en conception m\u00e9canique pour calculer la r\u00e9sistance et la capacit\u00e9 de charge des boulons, vis et autres composants filet\u00e9s. Il prend en compte [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[220],"tags":[],"class_list":["post-5769","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/posts\/5769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/comments?post=5769"}],"version-history":[{"count":1,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/posts\/5769\/revisions"}],"predecessor-version":[{"id":5770,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/posts\/5769\/revisions\/5770"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/media?parent=5769"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/categories?post=5769"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/fr\/wp-json\/wp\/v2\/tags?post=5769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}