{"id":4536,"date":"2026-06-25T11:22:41","date_gmt":"2026-06-25T11:22:41","guid":{"rendered":"https:\/\/beiyutitanium.com\/titanium-grade-selector\/"},"modified":"2026-06-26T13:51:39","modified_gmt":"2026-06-26T13:51:39","slug":"titanium-grade-selector","status":"publish","type":"page","link":"https:\/\/beiyutitanium.com\/fr\/titanium-grade-selector\/","title":{"rendered":"S\u00e9lecteur de nuance de titane"},"content":{"rendered":"<p>Choosing the right titanium grade for a corrosive or load-bearing service comes down to a few engineering variables: whether the medium is oxidizing or reducing, the service temperature, whether tight crevices are present, and whether the part carries load. This selector applies those rules to recommend a starting grade, with the UNS number, the ASTM minimum mechanical properties, the controlling logic, and a link to the matching product. Use it as a fast first pass, then confirm against your full service conditions.<\/p>\n<p><!-- Beiyu Titanium Grade Selector - self-contained widget, drop into a WordPress HTML block \/ Elementor HTML widget --><\/p>\n<style>\n.btg-tool{max-width:760px;margin:0 auto;font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:#1f2933;border:1px solid #d7dee5;border-radius:10px;overflow:hidden}\n.btg-tool *{box-sizing:border-box}\n.btg-head{background:#0b3b54;color:#fff;padding:18px 22px}\n.btg-head h3{margin:0 0 4px;font-size:20px;font-weight:700}\n.btg-head p{margin:0;font-size:13px;opacity:.85}\n.btg-body{padding:22px}\n.btg-q{margin-bottom:18px}\n.btg-q label.btg-qlabel{display:block;font-weight:600;font-size:14px;margin-bottom:8px}\n.btg-opts{display:flex;flex-wrap:wrap;gap:8px}\n.btg-opts button{flex:1 1 auto;min-width:120px;padding:9px 12px;font-size:13px;border:1px solid #cfd8e0;background:#f6f9fb;border-radius:7px;cursor:pointer;transition:.15s}\n.btg-opts button:hover{border-color:#0784bf}\n.btg-opts button.sel{background:#0784bf;border-color:#0784bf;color:#fff;font-weight:600}\n.btg-go{width:100%;padding:13px;font-size:15px;font-weight:700;color:#fff;background:#0784bf;border:0;border-radius:8px;cursor:pointer}\n.btg-go:hover{background:#0b3b54}\n.btg-result{margin-top:20px;border-top:1px solid #e3e9ee;padding-top:18px;display:none}\n.btg-result.show{display:block}\n.btg-rec{font-size:13px;color:#52606d;text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}\n.btg-grade{font-size:24px;font-weight:800;color:#0b3b54}\n.btg-grade .uns{font-size:15px;font-weight:600;color:#0784bf;margin-left:8px}\n.btg-spec{margin:10px 0;font-size:14px;color:#3e4c59}\n.btg-spec b{color:#1f2933}\n.btg-why{font-size:14px;line-height:1.55;background:#f6f9fb;border-left:3px solid #0784bf;padding:10px 14px;border-radius:0 6px 6px 0;margin:12px 0}\n.btg-warn{background:#fff4f2;border-left:3px solid #d64531;color:#92291a}\n.btg-links{margin-top:14px;font-size:13px}\n.btg-links a{color:#0784bf;text-decoration:none;font-weight:600;margin-right:16px}\n.btg-links a:hover{text-decoration:underline}\n.btg-note{font-size:12px;color:#7b8794;margin-top:14px;line-height:1.5}\n<\/style>\n<div class=\"btg-tool\" id=\"btgTool\">\n<div class=\"btg-head\">\n<h3>Titanium Grade Selector<\/h3>\n<p>Answer four questions to get the right titanium grade for your service, with the standard and the reason. By Beiyu Titanium.<\/p>\n<\/p><\/div>\n<div class=\"btg-body\">\n<div class=\"btg-q\" data-q=\"env\">\n      <label class=\"btg-qlabel\">1. What is the service?<\/label><\/p>\n<div class=\"btg-opts\">\n        <button data-v=\"seawater\">Seawater \/ marine<\/button><br \/>\n        <button data-v=\"chemical\">Chemical \/ acids<\/button><br \/>\n        <button data-v=\"general\">General corrosion<\/button><br \/>\n        <button data-v=\"structural\">Structural \/ load-bearing<\/button>\n      <\/div>\n<\/p><\/div>\n<div class=\"btg-q\" data-q=\"medium\">\n      <label class=\"btg-qlabel\">2. Dominant medium<\/label><\/p>\n<div class=\"btg-opts\">\n        <button data-v=\"oxidizing\">Oxidizing (nitric, wet chlorine, chloride salts)<\/button><br \/>\n        <button data-v=\"reducing\">Reducing acid (HCl, hot H2SO4)<\/button><br \/>\n        <button data-v=\"hf\">Contains hydrofluoric acid \/ fluorides<\/button><br \/>\n        <button data-v=\"na\">Not sure \/ not acid<\/button>\n      <\/div>\n<\/p><\/div>\n<div class=\"btg-q\" data-q=\"temp\">\n      <label class=\"btg-qlabel\">3. Service temperature<\/label><\/p>\n<div class=\"btg-opts\">\n        <button data-v=\"ambient\">Ambient to ~70 C<\/button><br \/>\n        <button data-v=\"hot\">Hot (above ~70-80 C)<\/button>\n      <\/div>\n<\/p><\/div>\n<div class=\"btg-q\" data-q=\"crevice\">\n      <label class=\"btg-qlabel\">4. Tight crevices present? (gaskets, tube-to-tubesheet, deposits)<\/label><\/p>\n<div class=\"btg-opts\">\n        <button data-v=\"yes\">Yes<\/button><br \/>\n        <button data-v=\"no\">No<\/button>\n      <\/div>\n<\/p><\/div>\n<div class=\"btg-q\" data-q=\"strength\">\n      <label class=\"btg-qlabel\">5. Does the part carry mechanical load?<\/label><\/p>\n<div class=\"btg-opts\">\n        <button data-v=\"none\">No, corrosion only<\/button><br \/>\n        <button data-v=\"structural\">Yes, structural<\/button><br \/>\n        <button data-v=\"critical\">Yes, fracture-critical \/ fatigue \/ implant<\/button>\n      <\/div>\n<\/p><\/div>\n<p>    <button class=\"btg-go\" id=\"btgGo\">Recommend a grade<\/button><\/p>\n<div class=\"btg-result\" id=\"btgResult\"><\/div>\n<\/p><\/div>\n<\/div>\n<p><script>(function(){var o=document.getElementById(\"btgTool\"),t={},a={gr2:{n:\"Grade 2\",uns:\"R50400\",al:\"Commercially pure titanium\",m:\"345 \/ 275 MPa\",url:\"\/product\/grade-2-titanium-bar\/\"},gr7:{n:\"Grade 7\",uns:\"R52400\",al:\"Ti-0.15Pd (palladium)\",m:\"345 \/ 275 MPa\",url:\"\/product\/titanium-bar-gr7\/\"},gr12:{n:\"Grade 12\",uns:\"R53400\",al:\"Ti-0.3Mo-0.8Ni\",m:\"483 \/ 345 MPa\",url:\"\/product\/gr12-titanium-bar\/\"},gr5:{n:\"Grade 5 (Ti-6Al-4V)\",uns:\"R56400\",al:\"Ti-6Al-4V\",m:\"895 \/ 828 MPa\",url:\"\/product\/6al4v-titanium-bar\/\"},gr23:{n:\"Grade 23 (Ti-6Al-4V ELI)\",uns:\"R56401\",al:\"Ti-6Al-4V ELI\",m:\"828 \/ 759 MPa\",url:\"\/product\/ti-6al-4v-eli-titanium-bar\/\"}};o.querySelectorAll(\".btg-opts button\").forEach(function(r){r.addEventListener(\"click\",function(){var i=r.closest(\".btg-q\").getAttribute(\"data-q\");r.closest(\".btg-opts\").querySelectorAll(\"button\").forEach(function(e){e.classList.remove(\"sel\")}),r.classList.add(\"sel\"),t[i]=r.getAttribute(\"data-v\")})});function l(){var r=\"\",i=!1,e;return t.medium===\"hf\"?{warn:!0,n:\"Titanium is not suitable\",uns:\"\",al:\"\",m:\"\",url:\"\",why:\"Hydrofluoric acid and acidic fluorides attack every titanium grade, even at low concentration. Use a different alloy for HF service. No titanium grade solves this.\"}:(t.strength===\"critical\"?(e=a.gr23,r=\"The part is fracture-critical, high-fatigue or implant-class, so the extra-low-interstitial Grade 23 ELI is specified for fracture toughness. Confirm ASTM F136 for implant material. Handle corrosion through the design as well as the grade.\"):t.strength===\"structural\"?(e=a.gr5,r=\"The part carries structural load, so high-strength Grade 5 (Ti-6Al-4V) is chosen for strength. Its general corrosion resistance is good, but it is less crevice-tolerant in hot chloride than Grade 7 or 12, so design out tight hot crevices.\"):t.medium===\"reducing\"?(e=a.gr7,r=\"Reducing acids such as hydrochloric and hot sulfuric break down the passive film on commercially pure titanium. The palladium in Grade 7 keeps titanium passive under reducing conditions, which is exactly where Grade 2 corrodes.\"):t.temp===\"hot\"&&(t.crevice===\"yes\"||t.env===\"seawater\"||t.medium===\"oxidizing\")?(e=a.gr12,r=\"Hot chloride or brine with crevices is where commercially pure Grade 2 risks crevice corrosion (onset around 70 to 80 C in tight gaps). Grade 12, with its molybdenum and nickel, resists hot-chloride crevice attack at a lower cost than the palladium-bearing Grade 7. Move to Grade 7 if conditions are at the extreme.\"):(e=a.gr2,r=\"In ambient to moderate-temperature oxidizing or neutral chloride service without tight hot crevices, the passive film stays intact and commercially pure Grade 2 performs excellently. Upgrading would be wasted money for this duty.\"),{warn:!1,n:e.n,uns:e.uns,al:e.al,m:e.m,url:e.url,why:r})}document.getElementById(\"btgGo\").addEventListener(\"click\",function(){for(var r=[\"env\",\"medium\",\"temp\",\"crevice\",\"strength\"],i=0;i<r.length;i++)if(!t[r[i]]){alert(\"Please answer question \"+(i+1)+\".\");return}var e=l(),s=document.getElementById(\"btgResult\"),n='\\x3Cdiv class=\"btg-rec\">Recommended grade\\x3C\/div>\\x3Cdiv class=\"btg-grade\">'+e.n+(e.uns?'\\x3Cspan class=\"uns\">UNS '+e.uns+\"\\x3C\/span>\":\"\")+\"\\x3C\/div>\";e.warn||(n+='\\x3Cdiv class=\"btg-spec\">\\x3Cb>Alloy:\\x3C\/b> '+e.al+\" &nbsp; \\x3Cb>ASTM min tensile \/ yield:\\x3C\/b> \"+e.m+\" (confirmed on the EN 10204 3.1 mill test certificate per heat)\\x3C\/div>\"),n+='\\x3Cdiv class=\"btg-why'+(e.warn?\" btg-warn\":\"\")+'\">'+e.why+\"\\x3C\/div>\",e.warn||(n+='\\x3Cdiv class=\"btg-links\">\\x3Ca href=\"'+e.url+'\">View '+e.n+' product\\x3C\/a>\\x3Ca href=\"\/titanium-grade-for-seawater-marine-service\/\">Seawater grade guide\\x3C\/a>\\x3Ca href=\"\/titanium-grade-for-chemical-processing\/\">Chemical grade guide\\x3C\/a>\\x3C\/div>'),n+='\\x3Cdiv class=\"btg-note\">This selector is engineering guidance for a starting grade. Confirm against the actual concentration, temperature, contaminant profile and load case of your service before specifying. Beiyu Titanium reviews grade, standard, dimensions and inspection scope before quotation.\\x3C\/div>',s.innerHTML=n,s.classList.add(\"show\"),s.scrollIntoView({behavior:\"smooth\",block:\"nearest\"})})})();<\/script><\/p>\n<h2>Related titanium grade selection guides<\/h2>\n<ul>\n<li><a href=\"\/titanium-grade-for-seawater-marine-service\/\">Titanium grade for seawater and marine service<\/a><\/li>\n<li><a href=\"\/titanium-grade-for-chemical-processing\/\">Titanium grade for chemical processing<\/a><\/li>\n<li><a href=\"\/medical-grade-titanium-guide-astm-f136-f67\/\">Medical-grade titanium (ASTM F136, F67, Grade 23 ELI)<\/a><\/li>\n<li><a href=\"\/grade-2-vs-grade-5-titanium\/\">Grade 2 vs Grade 5 titanium comparison<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Choosing the right titanium grade for a corrosive or load-bearing service comes down to a few engineering variables: whether the medium is oxidizing or reducing, the service temperature, whether tight crevices are present, and whether the part carries load. This selector applies those rules to recommend a starting grade, with the UNS number, the ASTM [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","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":""},"class_list":["post-4536","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Titanium Grade Selector: Pick Grade 2, 7, 12, 5 or 23<\/title>\n<meta name=\"description\" content=\"Free titanium grade selector. Answer 5 questions about your service (medium, temperature, crevices, load) and get the right titanium grade with UNS, ASTM data and the engineering reason.\" \/>\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-grade-selector\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Titanium Grade Selector: Pick Grade 2, 7, 12, 5 or 23\" \/>\n<meta property=\"og:description\" content=\"Free titanium grade selector. Answer 5 questions about your service (medium, temperature, crevices, load) and get the right titanium grade with UNS, ASTM data and the engineering reason.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/beiyutitanium.com\/fr\/titanium-grade-selector\/\" \/>\n<meta property=\"og:site_name\" content=\"Beiyu Titanium\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-26T13:51:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/beiyutitanium.com\/wp-content\/uploads\/2026\/06\/grade-12-titanium-weld-neck-flange-astm-b381-asme-b16-5-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"999\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-grade-selector\\\/\",\"url\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-grade-selector\\\/\",\"name\":\"Titanium Grade Selector: Pick Grade 2, 7, 12, 5 or 23\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/#website\"},\"datePublished\":\"2026-06-25T11:22:41+00:00\",\"dateModified\":\"2026-06-26T13:51:39+00:00\",\"description\":\"Free titanium grade selector. 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