{"id":5428,"date":"2026-08-14T08:53:01","date_gmt":"2026-08-14T08:53:01","guid":{"rendered":"https:\/\/beiyutitanium.com\/titanium-bar-peeled-turned-or-ground\/"},"modified":"2026-08-15T01:47:35","modified_gmt":"2026-08-15T01:47:35","slug":"titanium-bar-peeled-turned-or-ground","status":"publish","type":"post","link":"https:\/\/beiyutitanium.com\/fr\/titanium-bar-peeled-turned-or-ground\/","title":{"rendered":"Barre en titane pel\u00e9e, tourn\u00e9e ou rectifi\u00e9e : laquelle commander"},"content":{"rendered":"<figure class=\"ti-hero-image\" style=\"margin:0 0 1.2em;\"><img decoding=\"async\" src=\"https:\/\/beiyutitanium.com\/wp-content\/uploads\/2026\/08\/titanium-bar-centerless-grinding-line.jpg\" alt=\"Centerless grinding line at the Beiyu bar mill, where titanium bar is ground to final diameter\" loading=\"eager\" style=\"width:100%;height:auto;border-radius:8px;\" \/><\/figure>\n<h2>L'\u00e9tat de surface est un champ de commande, et non une pr\u00e9f\u00e9rence de finition<\/h2>\n<p>Pel\u00e9e, tourn\u00e9e et rectifi\u00e9e sans centre d\u00e9crivent la mani\u00e8re dont la barre a quitt\u00e9 l'usine, et chacune arrive avec une tol\u00e9rance de diam\u00e8tre, une surface et une sur\u00e9paisseur d'usinage d\u00e9j\u00e0 int\u00e9gr\u00e9e diff\u00e9rentes. Le choix entre elles est une d\u00e9cision d'approvisionnement, et non esth\u00e9tique.<\/p>\n<table>\n<thead>\n<tr>\n<th>Ce que fixe l'\u00e9tat de surface<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>La tol\u00e9rance de diam\u00e8tre que la barre peut respecter<\/td>\n<\/tr>\n<tr>\n<td>La quantit\u00e9 de mati\u00e8re que l'usineur doit enlever<\/td>\n<\/tr>\n<tr>\n<td>Si une valeur de rugosit\u00e9 peut \u00eatre consid\u00e9r\u00e9e comme un crit\u00e8re d'acceptation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Origine de chaque \u00e9tat dans le processus de production<\/h2>\n<p>La fili\u00e8re de barre de Beiyu suit un ordre fixe, et l'\u00e9tat de surface correspond simplement au point o\u00f9 la barre quitte cette ligne.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u00c9tape<\/th>\n<th>Ce qu'il produit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Four de recuit<\/td>\n<td>La condition de livraison du m\u00e9tal<\/td>\n<\/tr>\n<tr>\n<td>Ligne d'\u00e9pluchage et de tournage<\/td>\n<td>Barre pel\u00e9e ou tourn\u00e9e<\/td>\n<\/tr>\n<tr>\n<td>Redressage<\/td>\n<td>Fl\u00e8che ramen\u00e9e \u00e0 la valeur command\u00e9e<\/td>\n<\/tr>\n<tr>\n<td>Ligne de rectification sans centre<\/td>\n<td>Barre rectifi\u00e9e de pr\u00e9cision<\/td>\n<\/tr>\n<tr>\n<td>Polissage<\/td>\n<td>Surface polie sur barre rectifi\u00e9e<\/td>\n<\/tr>\n<tr>\n<td>Sciage automatique et dressage des extr\u00e9mit\u00e9s<\/td>\n<td>Longueur de coupe et \u00e9tat des extr\u00e9mit\u00e9s<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>La tol\u00e9rance associ\u00e9e \u00e0 chaque \u00e9tat<\/h2>\n<p>Les valeurs ci-dessous correspondent \u00e0 celles que Beiyu applique \u00e0 la fili\u00e8re de rectification de pr\u00e9cision. Les barres \u00e9pluch\u00e9es et tourn\u00e9es sont command\u00e9es selon <a href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-diameter-tolerance-how-to-specify\/\">les tol\u00e9rances dimensionnelles de la norme produit applicable<\/a> plut\u00f4t que selon une valeur de barre rectifi\u00e9e.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u00c9tat<\/th>\n<th>Tol\u00e9rance de diam\u00e8tre<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Rectification sans centre de pr\u00e9cision<\/td>\n<td>Plus ou moins 0,0127 mm en standard<\/td>\n<\/tr>\n<tr>\n<td>Rectifi\u00e9 avec pr\u00e9cision, resserr\u00e9<\/td>\n<td>Plus ou moins 0,0076 mm lorsque le plan l'exige<\/td>\n<\/tr>\n<tr>\n<td>Pel\u00e9 ou tourn\u00e9<\/td>\n<td>Selon le tableau des tol\u00e9rances de la norme command\u00e9e, indiqu\u00e9 sur la commande<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>L'usage habituel de chaque \u00e9tat<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u00c9tat<\/th>\n<th>Ce que l'acheteur cherche g\u00e9n\u00e9ralement \u00e0 r\u00e9soudre<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u00c9pluch\u00e9<\/td>\n<td>\u00c9limination de la surface d'usine avant traitement ult\u00e9rieur<\/td>\n<\/tr>\n<tr>\n<td>Tourn\u00e9<\/td>\n<td>Un diam\u00e8tre d\u00e9fini avec une sur\u00e9paisseur laiss\u00e9e pour la passe de finition<\/td>\n<\/tr>\n<tr>\n<td>Rectifi\u00e9e de pr\u00e9cision<\/td>\n<td>Alimentation directe des op\u00e9rations d'usinage automatique ou \u00e0 poup\u00e9e mobile sans passe d'\u00e9bauche<\/td>\n<\/tr>\n<tr>\n<td>Poli<\/td>\n<td>Une surface dont la rugosit\u00e9 elle-m\u00eame constitue un crit\u00e8re d'acceptation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>L'\u00e9tat de surface et l'\u00e9tat de livraison sont deux champs diff\u00e9rents<\/h2>\n<p>Recuit, \u00e9croui et d\u00e9tendu d\u00e9crivent l'\u00e9tat m\u00e9tallurgique. \u00c9pluch\u00e9, tourn\u00e9 et rectifi\u00e9 d\u00e9crivent la surface. Une commande qui indique l'un sans l'autre est incompl\u00e8te, car une m\u00eame surface peut \u00eatre fournie dans plus d'une condition de livraison.<\/p>\n<table>\n<thead>\n<tr>\n<th>Champ<\/th>\n<th>Ce \u00e0 quoi cela r\u00e9pond<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Condition de livraison<\/td>\n<td>Comment le m\u00e9tal a \u00e9t\u00e9 trait\u00e9, ce qui d\u00e9termine les propri\u00e9t\u00e9s m\u00e9caniques<\/td>\n<\/tr>\n<tr>\n<td>\u00c9tat de surface<\/td>\n<td>Comment la surface ext\u00e9rieure de la barre a \u00e9t\u00e9 finie, ce qui d\u00e9termine la tol\u00e9rance et la sur\u00e9paisseur<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Crit\u00e8res de contr\u00f4le du processus de rectification de pr\u00e9cision<\/h2>\n<p>La fili\u00e8re de rectification de pr\u00e9cision comporte <a href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-ultrasonic-acceptance-class\/\">cinq contr\u00f4les pi\u00e8ce par pi\u00e8ce<\/a>. Les barres \u00e9pluch\u00e9es et tourn\u00e9es sont contr\u00f4l\u00e9es selon le p\u00e9rim\u00e8tre convenu dans la commande, et non selon cet ensemble.<\/p>\n<table>\n<thead>\n<tr>\n<th>Contr\u00f4le \u00e0 100 pour cent sur la fili\u00e8re de rectification de pr\u00e9cision<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>D\u00e9tection de d\u00e9fauts par ultrasons<\/td>\n<\/tr>\n<tr>\n<td>D\u00e9tection de d\u00e9fauts par courants de Foucault<\/td>\n<\/tr>\n<tr>\n<td>Contr\u00f4le optique de surface<\/td>\n<\/tr>\n<tr>\n<td>Mesure du diam\u00e8tre par laser infrarouge<\/td>\n<\/tr>\n<tr>\n<td>D\u00e9tection de la rectitude<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Comment l'indiquer sur la commande<\/h2>\n<pre style=\"white-space:pre-wrap;background:#f4f6f7;border:1px solid #dfe4e8;border-radius:4px;padding:14px 16px;font-size:13.5px;line-height:1.7;overflow-x:auto\">\u00c9tat de surface : ______ (\u00e9pluch\u00e9, tourn\u00e9, rectifi\u00e9 sans centre ou poli) Condition de livraison : ______ (indiquer s\u00e9par\u00e9ment l'\u00e9tat m\u00e9tallurgique) Tol\u00e9rance de diam\u00e8tre : ______ Rugosit\u00e9 de surface : ______ (indiquer une valeur uniquement lorsqu'elle constitue un crit\u00e8re d'acceptation) Sur\u00e9paisseur d'usinage : ______ (indiquer si une sur\u00e9paisseur doit \u00eatre laiss\u00e9e pour une passe de finition) Rectitude : ______ mm par m\u00e8tre<\/pre>\n<p>Nom <a href=\"https:\/\/beiyutitanium.com\/fr\/machining-titanium-bar-stock-guide\/\">l'op\u00e9ration dans laquelle la barre est ensuite utilis\u00e9e<\/a>. Toutes les combinaisons de surface, de diam\u00e8tre et de tol\u00e9rance n'existent pas sur la m\u00eame fili\u00e8re, Beiyu confirme donc d'abord la combinaison par rapport \u00e0 la norme command\u00e9e.<\/p>\n<div class=\"ti-rfq-box\">\n<h2>D\u00e9tails des sp\u00e9cifications avec sources<\/h2>\n<p>L\u2019\u00e9tat de surface et l\u2019\u00e9tat de livraison sont deux champs de commande diff\u00e9rents, et <a href=\"https:\/\/store.astm.org\/standards\/b348\" target=\"_blank\" rel=\"noopener\">ASTM B348<\/a> les distingue. La norme couvre les barres et billettes recuites (ASTM B348, domaine d\u2019application), tandis que l\u2019\u00e9tat de surface est indiqu\u00e9 comme un \u00e9l\u00e9ment distinct dans la clause relative aux informations de commande, avec le num\u00e9ro de nuance, la classification du produit, la composition chimique, les propri\u00e9t\u00e9s m\u00e9caniques, le marquage, l\u2019emballage, les rapports requis et le sort des mati\u00e8res rejet\u00e9es (ASTM B348, informations de commande). Ainsi, une commande indiquant uniquement recuit ne pr\u00e9cise pas encore si la barre est livr\u00e9e pel\u00e9e, tourn\u00e9e ou rectifi\u00e9e.<\/p>\n<table data-c195=\"1\">\n<thead>\n<tr>\n<th>Champ<\/th>\n<th>Ce qu\u2019elle fixe<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Num\u00e9ro de nuance<\/td>\n<td>Composition chimique et minima m\u00e9caniques<\/td>\n<\/tr>\n<tr>\n<td>Condition de livraison<\/td>\n<td>L\u2019\u00e9tat m\u00e9tallurgique, recuit selon cette norme<\/td>\n<\/tr>\n<tr>\n<td>\u00c9tat de surface<\/td>\n<td>La surface avec laquelle la barre est livr\u00e9e, indiqu\u00e9e s\u00e9par\u00e9ment<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>La composition chimique n'est pas affect\u00e9e par la surface choisie : ASTM B348 fixe Grade 2 \u00e0 0,25 pour cent d'oxyg\u00e8ne maximum et 0,30 pour cent de fer maximum, et Grade 23 ELI \u00e0 0,13 pour cent d'oxyg\u00e8ne maximum avec 0,0125 pour cent d'hydrog\u00e8ne maximum (ASTM B348, exigences chimiques). Il s'agit de limites d'analyse de coul\u00e9e, et la norme indique que les tol\u00e9rances d'analyse produit ne les \u00e9largissent pas (ASTM B348, analyse produit). Dans la pratique d'approvisionnement de Beiyu, les valeurs de tol\u00e9rance et de contr\u00f4le indiqu\u00e9es sur cette page concernent la fili\u00e8re de rectification sans centre de pr\u00e9cision ; les barres pel\u00e9es et tourn\u00e9es sont plut\u00f4t command\u00e9es selon les tol\u00e9rances dimensionnelles de la norme produit applicable.<\/p>\n<h2>Envoyer une demande de prix technique<\/h2>\n<p>Pour les demandes de prix de barres en titane, indiquez la nuance, la norme ASTM ou AMS, le diam\u00e8tre, l\u2019\u00e9tat de livraison, l\u2019\u00e9tat de surface, la tol\u00e9rance, l\u2019op\u00e9ration d\u2019usinage suivante, la quantit\u00e9 et le certificat mati\u00e8re requis.<\/p>\n<p><a class=\"contact-popup-btn\" href=\"#contact-popup-btn\">Envoyer les d\u00e9tails de la demande de prix<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Surface condition is an order field, not a finish preference Peeled, turned and centerless ground describe how the bar left the mill, and each one arrives with a different diameter tolerance, a different surface and a different machining allowance already built in. Choosing between them is a procurement decision, not a cosmetic one. What the [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":5257,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","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":[27,137],"tags":[],"class_list":["post-5428","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-technical-guides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Peeled, Turned or Ground Titanium Bar: Which to Order<\/title>\n<meta name=\"description\" content=\"Each surface condition arrives with a different diameter tolerance, surface and machining allowance built in. See where each comes from on the route and how to state it.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-peeled-turned-or-ground\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Peeled, Turned or Ground Titanium Bar: Which to Order\" \/>\n<meta property=\"og:description\" content=\"Each surface condition arrives with a different diameter tolerance, surface and machining allowance built in. See where each comes from on the route and how to state it.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-peeled-turned-or-ground\/\" \/>\n<meta property=\"og:site_name\" content=\"Beiyu Titanium\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-14T08:53:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-15T01:47:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/beiyutitanium.com\/wp-content\/uploads\/2026\/08\/titanium-bar-centerless-grinding-line.jpg\" \/>\n<meta name=\"author\" content=\"Penn Ma\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Penn Ma\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-peeled-turned-or-ground\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-peeled-turned-or-ground\\\/\"},\"author\":{\"name\":\"Penn Ma\",\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/#\\\/schema\\\/person\\\/3560db17cf08813edf34f012735b971b\"},\"headline\":\"Peeled, Turned or Ground Titanium Bar: Which to Order\",\"datePublished\":\"2026-08-14T08:53:01+00:00\",\"dateModified\":\"2026-08-15T01:47:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-peeled-turned-or-ground\\\/\"},\"wordCount\":721,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-peeled-turned-or-ground\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/beiyutitanium.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/titanium-bar-centerless-grinding-line.jpg\",\"articleSection\":[\"News\",\"Technical Guides\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-peeled-turned-or-ground\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-peeled-turned-or-ground\\\/\",\"url\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-peeled-turned-or-ground\\\/\",\"name\":\"Peeled, Turned or Ground Titanium Bar: Which to Order\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-peeled-turned-or-ground\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-peeled-turned-or-ground\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/beiyutitanium.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/titanium-bar-centerless-grinding-line.jpg\",\"datePublished\":\"2026-08-14T08:53:01+00:00\",\"dateModified\":\"2026-08-15T01:47:35+00:00\",\"description\":\"Each surface condition arrives with a different diameter tolerance, surface and machining allowance built in. 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