{"id":3718,"date":"2018-06-13T13:35:04","date_gmt":"2018-06-13T05:35:04","guid":{"rendered":"http:\/\/www.bundytubes.com\/?p=3718"},"modified":"2026-04-17T22:23:12","modified_gmt":"2026-04-17T14:23:12","slug":"gm-material-specification-ems-99-steel-tubing-copper-brazed","status":"publish","type":"post","link":"https:\/\/www.bundytubes.com\/fr\/gm-material-specification-ems-99-steel-tubing-copper-brazed\/","title":{"rendered":"Sp\u00e9cification mat\u00e9rielle GM : EMS-99 \u2013 Tubes en acier bras\u00e9s au cuivre"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">1. Pratiques normalis\u00e9es &amp; : Respecter l\u2019int\u00e9gralit\u00e9 des exigences de la norme ASTM A254<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2. Duret\u00e9 : (sur le diam\u00e8tre int\u00e9rieur, \u00e0 90 degr\u00e9s de la soudure) Rockwell 30T, valeur maximale de 55.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3. Essai de pliage et de flexion &amp; : Une section du tube d\u2019au moins 2\u00bd pouces de longueur doit r\u00e9sister \u00e0 un \u00e9crasement entre deux plaques parall\u00e8les jusqu\u2019\u00e0 ce que les parois int\u00e9rieures soient en contact. La section \u00e9cras\u00e9e est ensuite fl\u00e9chie une fois de 90 degr\u00e9s autour d\u2019une broche dont le diam\u00e8tre est \u00e9gal \u00e0 trois fois l\u2019\u00e9paisseur de paroi du tube, puis redress\u00e9e une fois sans fissuration ni d\u00e9faut apparent.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4. Tol\u00e9rances :<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td rowspan=\"2\">&nbsp;<strong>OD<\/strong><\/td><td colspan=\"2\"><strong>\u00c9cart admissible<\/strong><\/td><\/tr><tr><td>Plus<\/td><td>Moins<\/td><\/tr><tr><td>3\/16&Prime;<\/td><td>.002&Prime;<\/td><td>.002&Prime;<\/td><\/tr><tr><td>1\/4&Prime; &amp; Au-dessus<\/td><td>.002&Prime;<\/td><td>.003&Prime;<\/td><\/tr><tr><td>\u00c9paisseur de paroi<sup>1<\/sup><\/td><td>.002&Prime;<\/td><td>.003&Prime;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><sup>1<\/sup>Pour des \u00e9paisseurs de paroi comprises entre .020&Prime; et .049&Prime;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5. Essai hydrostatique : R\u00e9sister, sans fuite, \u00e0 une pression hydrostatique interne suffisante pour soumettre le mat\u00e9riau \u00e0 une contrainte minimale dans la fibre de 16 000 psi. La pression hydrostatique doit \u00eatre d\u00e9termin\u00e9e \u00e0 l\u2019aide de l\u2019\u00e9quation suivante :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P = 2St\/D<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O\u00f9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P = pression hydrostatique en psi<br>S = contrainte admissible dans la fibre, 16 000 psi<br>t =&nbsp; \u00e9paisseur de la paroi du tube en pouces<br>D = diam\u00e8tre ext\u00e9rieur du tube en pouces.<\/p>\n<script type=\"text\/javascript\" charset=\"utf-8\" src=\"http:\/\/w.sharethis.com\/widget\/?wp=7.1.2\"><\/script>","protected":false},"excerpt":{"rendered":"<p>1. Pratiques normalis\u00e9es &amp; : Respecter l\u2019int\u00e9gralit\u00e9 des exigences de la norme ASTM A254 2. Duret\u00e9 : (sur le diam\u00e8tre [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3225,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[33],"tags":[],"class_list":["post-3718","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-standard"],"_links":{"self":[{"href":"https:\/\/www.bundytubes.com\/fr\/wp-json\/wp\/v2\/posts\/3718","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bundytubes.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bundytubes.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bundytubes.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bundytubes.com\/fr\/wp-json\/wp\/v2\/comments?post=3718"}],"version-history":[{"count":0,"href":"https:\/\/www.bundytubes.com\/fr\/wp-json\/wp\/v2\/posts\/3718\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bundytubes.com\/fr\/wp-json\/wp\/v2\/media\/3225"}],"wp:attachment":[{"href":"https:\/\/www.bundytubes.com\/fr\/wp-json\/wp\/v2\/media?parent=3718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bundytubes.com\/fr\/wp-json\/wp\/v2\/categories?post=3718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bundytubes.com\/fr\/wp-json\/wp\/v2\/tags?post=3718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}