{"id":2823,"date":"2023-10-19T14:22:45","date_gmt":"2023-10-19T06:22:45","guid":{"rendered":"https:\/\/uniasen.com\/?page_id=2823"},"modified":"2024-09-04T08:49:31","modified_gmt":"2024-09-04T00:49:31","slug":"astm-a691","status":"publish","type":"page","link":"https:\/\/uniasen.com\/de\/normen\/astm-a691\/","title":{"rendered":"ASTM A691"},"content":{"rendered":"<div id=\"page-header-566686854\" class=\"page-header-wrapper\">\n  <div class=\"page-title dark featured-title\">\n\n        <div class=\"page-title-bg\">\n      <div class=\"title-bg fill bg-fill\"\n        data-parallax-container=\".page-title\"\n        data-parallax-background\n data-parallax=\"-\">\n      <\/div>\n      <div class=\"title-overlay fill\"><\/div>\n    <\/div>\n    \n    <div class=\"page-title-inner container align-center flex-row medium-flex-wrap\" >\n              <div class=\"title-wrapper flex-col text-left medium-text-center\">\n          <h1 class=\"entry-title mb-0\">\n            ASTM A691          <\/h1>\n        <\/div>\n                    <div class=\"title-content flex-col flex-right text-right medium-text-center\">\n        <div class=\"title-breadcrumbs pb-half pt-half\"><\/div>      <\/div>\n    <\/div>\n\n     \n<style>\n#page-header-566686854 .title-bg {\n  background-image: url(https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-carbon-steel-pipe-manufacturer-header.webp);\n}\n<\/style>\n  <\/div>\n    <\/div>\n  \n\t<div id=\"gap-750046874\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-750046874 {\n  padding-top: 4%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<section class=\"section\" id=\"section_1061110583\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row align-middle align-center\"  id=\"row-1719347121\">\n\n\t<div id=\"col-886681551\" class=\"col medium-11 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_290118494\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner image-cover dark\" style=\"padding-top:75%;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2024\/08\/china_lsaw_pipe_supplier_line_pipe_factory.webp\" class=\"attachment-original size-original\" alt=\"china lsaw rohr lieferant line rohr fabrik\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2024\/08\/china_lsaw_pipe_supplier_line_pipe_factory.webp 1000w, https:\/\/uniasen.com\/wp-content\/uploads\/2024\/08\/china_lsaw_pipe_supplier_line_pipe_factory-300x225.webp 300w, https:\/\/uniasen.com\/wp-content\/uploads\/2024\/08\/china_lsaw_pipe_supplier_line_pipe_factory-768x576.webp 768w, https:\/\/uniasen.com\/wp-content\/uploads\/2024\/08\/china_lsaw_pipe_supplier_line_pipe_factory-16x12.webp 16w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_290118494 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-2001098384\" class=\"col medium-12 small-12 large-6 medium-col-first\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>ASTM A691-Rohr<\/h2>\n<p><strong>Standard-\u00dcbersicht:\u00a0<\/strong><\/p>\n<p>ASTM A691 ist eine Norm f\u00fcr elektrisch geschwei\u00dfte Rohre aus Kohlenstoff- und legiertem Stahl. Sie ist f\u00fcr den Einsatz in Umgebungen mit hohen Temperaturen und hohem Druck bestimmt. Diese Rohre werden in der Regel durch Aufrollen und Schwei\u00dfen mehrerer Stahlplatten hergestellt. Sie weisen eine gute Festigkeit und Korrosionsbest\u00e4ndigkeit auf.<\/p>\n<p><strong>Hauptmaterial:<\/strong><\/p>\n<p>Kohlenstoffstahl und legierter Stahl. G\u00e4ngige legierte Stahlwerkstoffe sind 1,25Cr-0,5Mo, 2,25Cr-1Mo, etc.<\/p>\n<p><strong>Umfang der Anwendung:<\/strong><\/p>\n<p>ASTM A691-Rohre werden h\u00e4ufig in der \u00d6l-, Gas-, Energie- und Chemieindustrie verwendet. Sie sind f\u00fcr Hochtemperatur- und Hochdruckumgebungen, wie Kessel und Rohrleitungssysteme, geeignet.<\/p>\n<a href=\"#is-pop\" class=\"button primary\"  style=\"border-radius:10px;\">\n\t\t<span>Angebot anfordern<\/span>\n\t<\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1061110583 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_1765830016\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-1765098196\">\n\n\t<div id=\"col-699452714\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Spezifikation der ASTM A691<\/h2>\n<table>\n<thead>\n<tr>\n<th>Standard<\/th>\n<th>ASTM A691<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Anmeldung<\/td>\n<td>Standard-Spezifikation f\u00fcr Rohre aus unlegiertem und legiertem Stahl, elektrisch schmelzgeschwei\u00dft, f\u00fcr Hochdruckanwendungen bei hohen Temperaturen<\/td>\n<\/tr>\n<tr>\n<td>Rohrsorte<\/td>\n<td>Legierter Stahl ASTM A691 Cl22,1 CR,1\/2 CR,1 1\/4 CR,2 1\/4 CR, 3 CR,5 CR,9 CR,91,CM 65,CM70,CM75<\/td>\n<\/tr>\n<tr>\n<td>Bezeichnung der Klasse<\/td>\n<td>Klasse 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 34, 40, 41, 42, 43, 50, 51, 52, 53, 60, 61, 62, 63, 70, 71, 72, 73...<\/td>\n<\/tr>\n<tr>\n<td>Verfahren<\/td>\n<td>EFW, <span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/uniasen.com\/de\/produkte\/altrohr\/\">ERW<\/a><\/span>, <a href=\"https:\/\/uniasen.com\/de\/produkte\/nahtloses-rohr\/\"><span style=\"color: #ff6600;\">SEAMLESS<\/span><\/a>, <span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/uniasen.com\/de\/produkte\/lsaw-rohr\/\">LSAW<\/a><\/span><\/td>\n<\/tr>\n<tr>\n<td>\u00c4u\u00dferer Durchmesser<\/td>\n<td>1\/2&#8221;- 36&#8221;<\/td>\n<\/tr>\n<tr>\n<td>Wanddicke<\/td>\n<td>SCH10, SCH20, SCH30, STD, SCH40, SCH60, XS, SCH80, SCH100, SCH12,0 SCH140, SCH160, XXS<\/td>\n<\/tr>\n<tr>\n<td>L\u00e4nge des Rohrs<\/td>\n<td>Einzelne beliebige L\u00e4nge\/Doppelte beliebige L\u00e4nge 5m-14m,5.8m,6m,10m-12m,12m oder nach Kundenwunsch<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">Toleranz<\/td>\n<td>OD: +\/- 0,5 % des angegebenen Au\u00dfendurchmessers<\/td>\n<\/tr>\n<tr>\n<td>WT: nicht mehr als 0,01 Zoll (0,3 mm) unter der angegebenen Nenndicke.<\/td>\n<\/tr>\n<tr>\n<td>L\u00e4nge: innerhalb von -0,+1\u20442 Zoll (-0, +13 mm) vom angegebenen Wert.<\/td>\n<\/tr>\n<tr>\n<td>Oberfl\u00e4che der Rohre<\/td>\n<td>Blank, schwarz lackiert, lackiert, verzinkt, korrosionsgesch\u00fctzt, PE PP\/EP\/FBE-Beschichtung<\/td>\n<\/tr>\n<tr>\n<td>Rohrende<\/td>\n<td>Glattes Ende\/abgeschr\u00e4gt, gesch\u00fctzt durch Kunststoffkappen an beiden Enden, geschnitten, gerillt, mit Gewinde und Kupplung<\/td>\n<\/tr>\n<tr>\n<td>Technische Methode<\/td>\n<td>Warmgewalzt\/Kaltgezogen\/Hei\u00dfexpandiert<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1765830016 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_777426983\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-1884633627\">\n\n\t<div id=\"col-85491767\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Dimension<\/h2>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-342911905\">\n\n\t<div id=\"col-945513270\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<table>\n<tbody>\n<tr>\n<td width=\"190\">Au\u00dfendurchmesser\uff1a<\/td>\n<td width=\"296\">16 Zoll [405 mm] oder gr\u00f6\u00dfer<\/td>\n<\/tr>\n<tr>\n<td>Wanddicke\uff1a<\/td>\n<td>bis zu 3 Zoll [75 mm]<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\" width=\"486\">Rohre mit anderen Abmessungen k\u00f6nnen geliefert werden, sofern sie alle anderen Anforderungen dieser Spezifikation erf\u00fcllen.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_777426983 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_1952592864\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-1967834220\">\n\n\t<div id=\"col-1649164799\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Chemischer Bedarf<\/h2>\n<table>\n<tbody>\n<tr>\n<td rowspan=\"2\" width=\"72\">Rohrsorte<\/td>\n<td rowspan=\"2\" width=\"359\">Stahlsorte<\/td>\n<td colspan=\"2\" width=\"184\">ASTM-Spezifikation<\/td>\n<td rowspan=\"2\" width=\"72\">HB , maxA<\/td>\n<\/tr>\n<tr>\n<td>Nummer<\/td>\n<td>Klasse<\/td>\n<\/tr>\n<tr>\n<td>CM -65<\/td>\n<td>Kohlenstoff-Molybd\u00e4n-Stahl<\/td>\n<td>A204\/A204M<\/td>\n<td>A<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>CM -70<\/td>\n<td>Kohlenstoff-Molybd\u00e4n-Stahl<\/td>\n<td>A204\/A204M<\/td>\n<td>B<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>CM -75<\/td>\n<td>Kohlenstoff-Molybd\u00e4n-Stahl<\/td>\n<td>A204\/A204M<\/td>\n<td>C<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>CmSH -70<\/td>\n<td>Kohlenstoff-Mangan-Silizium-Stahl, normalgegl\u00fcht<\/td>\n<td>A537\/A537M<\/td>\n<td>1<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>CMS -75<\/td>\n<td>Kohlenstoff-Mangan-Silizium-Stahl<\/td>\n<td>A299\/A299M<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td>CMSH -80<\/td>\n<td>Kohlenstoff-Mangan-Silizium-Stahl, verg\u00fctet und angelassen<\/td>\n<td>A537\/A537M<\/td>\n<td>2<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td>1\/2 CR<\/td>\n<td>1\/2% Chrom, 1\/2% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>2<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>1CR<\/td>\n<td>1% Chrom, 1\/2% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>12<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>1-1\/4 CR<\/td>\n<td>11\/4% Chrom, 1\/2% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>11<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>2-1\/4 CR<\/td>\n<td>21\/4% Chrom, 1% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>22<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>3CR<\/td>\n<td>3% Chrom, 1% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>21<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>5CR<\/td>\n<td>5% Chrom, 1\/2% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>5<\/td>\n<td>225<\/td>\n<\/tr>\n<tr>\n<td>9CR<\/td>\n<td>9% Chrom, 1% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>9<\/td>\n<td>241<\/td>\n<\/tr>\n<tr>\n<td>91<\/td>\n<td>9% Chrom, 1% Molybd\u00e4n, Vanadium, Kolumbium<\/td>\n<td>A387\/A387M<\/td>\n<td>91B<\/td>\n<td>241<\/td>\n<\/tr>\n<tr>\n<td colspan=\"5\" width=\"687\">A Die aufgef\u00fchrten H\u00e4rtewerte gelten f\u00fcr S3.<br \/>\nBG-G\u00fcteklasse 91 ist mit Typ 1 oder Typ 2 zu bezeichnen, wenn dies in der vorherrschenden Spezifikation vorgesehen ist.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1952592864 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_1519451465\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-1527106571\">\n\n\t<div id=\"col-1693535904\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Mechanische Anforderung<\/h2>\n<table>\n<thead>\n<tr>\n<th rowspan=\"2\">Rohrsorte<\/th>\n<th rowspan=\"2\">Stahlsorte<\/th>\n<th colspan=\"2\">ASTM-Spezifikation<\/th>\n<th rowspan=\"2\">HB , maxA<\/th>\n<\/tr>\n<tr>\n<th>Nummer<\/th>\n<th>Klasse<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>CM -65<\/td>\n<td>Kohlenstoff-Molybd\u00e4n-Stahl<\/td>\n<td>A204\/A204M<\/td>\n<td>A<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>CM -70<\/td>\n<td>Kohlenstoff-Molybd\u00e4n-Stahl<\/td>\n<td>A204\/A204M<\/td>\n<td>B<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>CM -75<\/td>\n<td>Kohlenstoff-Molybd\u00e4n-Stahl<\/td>\n<td>A204\/A204M<\/td>\n<td>C<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>CmSH -70<\/td>\n<td>Kohlenstoff-Mangan-Silizium-Stahl, normalgegl\u00fcht<\/td>\n<td>A537\/A537M<\/td>\n<td>1<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>CMS -75<\/td>\n<td>Kohlenstoff-Mangan-Silizium-Stahl<\/td>\n<td>A299\/A299M<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td>CMSH -80<\/td>\n<td>Kohlenstoff-Mangan-Silizium-Stahl, verg\u00fctet und angelassen<\/td>\n<td>A537\/A537M<\/td>\n<td>2<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td>1\/2 CR<\/td>\n<td>1\/2% Chrom, 1\/2% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>2<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>1CR<\/td>\n<td>1% Chrom, 1\/2% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>12<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>1-1\/4 CR<\/td>\n<td>11\/4% Chrom, 1\/2% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>11<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>2-1\/4 CR<\/td>\n<td>21\/4% Chrom, 1% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>22<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>3CR<\/td>\n<td>3% Chrom, 1% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>21<\/td>\n<td>201<\/td>\n<\/tr>\n<tr>\n<td>5CR<\/td>\n<td>5% Chrom, 1\/2% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>5<\/td>\n<td>225<\/td>\n<\/tr>\n<tr>\n<td>9CR<\/td>\n<td>9% Chrom, 1% Molybd\u00e4nstahl<\/td>\n<td>A387\/A387M<\/td>\n<td>9<\/td>\n<td>241<\/td>\n<\/tr>\n<tr>\n<td>91<\/td>\n<td>9% Chrom, 1% Molybd\u00e4n, Vanadium, Kolumbium<\/td>\n<td>A387\/A387M<\/td>\n<td>91B<\/td>\n<td>241<\/td>\n<\/tr>\n<tr>\n<td colspan=\"5\">A Die aufgef\u00fchrten H\u00e4rtewerte gelten f\u00fcr S3.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"5\">BG-G\u00fcteklasse 91 ist mit Typ 1 oder Typ 2 zu bezeichnen, wenn dies in der vorherrschenden Spezifikation vorgesehen ist.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1519451465 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_1581320385\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row align-middle align-center\"  id=\"row-1072032985\">\n\n\t<div id=\"col-1601944604\" class=\"col medium-12 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Warum UNIASEN w\u00e4hlen?<\/h2>\n<ul>\n<li>Geschwei\u00dft und mit Zusatz von Schwei\u00dfzusatzwerkstoffen. Sie werden aus Blechen in Druckbeh\u00e4lterqualit\u00e4t mit unterschiedlichen Analysen und Festigkeitsgraden hergestellt. Wir stellen sicher, dass die W\u00e4rmebehandlung nach Bedarf durchgef\u00fchrt wird, um die erforderlichen mechanischen Eigenschaften zu erreichen. Unsere Rohre werden nach der Stahlsorte und der bei der Herstellung verwendeten W\u00e4rmebehandlung klassifiziert.<\/li>\n<li>UNIASEN bietet ASTM A691\/A691M-Rohre in einer breiten Palette von Abmessungen an. Unsere Rohre sind in einer Vielzahl von Durchmessern, Wandst\u00e4rken und L\u00e4ngen erh\u00e4ltlich, so dass wir Ihre spezifischen Anforderungen erf\u00fcllen k\u00f6nnen.<\/li>\n<li>ASTM A691\/A691M-Rohre sind elektrogeschwei\u00dft. Sie sind f\u00fcr den Einsatz bei hohem Druck und hohen Temperaturen geeignet. Die ASTM A691\/A691M-Rohre von UNIASEN sind in verschiedenen Gr\u00f6\u00dfen erh\u00e4ltlich, um Ihre Anforderungen zu erf\u00fcllen.<\/li>\n<\/ul>\n<a href=\"#is-pop\" class=\"button primary\"  style=\"border-radius:10px;\">\n\t\t<span>Angebot anfordern<\/span>\n\t<\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-826880691\" class=\"col medium-11 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n  <div class=\"banner has-hover\" id=\"banner-2074823467\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" >\n            <img loading=\"lazy\" decoding=\"async\" width=\"2500\" height=\"1670\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2024\/03\/UNIASEN-factory-gate.webp\" class=\"bg\" alt=\"UNIASEN Werkstor\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2024\/03\/UNIASEN-factory-gate.webp 2500w, https:\/\/uniasen.com\/wp-content\/uploads\/2024\/03\/UNIASEN-factory-gate-300x200.webp 300w, https:\/\/uniasen.com\/wp-content\/uploads\/2024\/03\/UNIASEN-factory-gate-1030x688.webp 1030w, https:\/\/uniasen.com\/wp-content\/uploads\/2024\/03\/UNIASEN-factory-gate-768x513.webp 768w, https:\/\/uniasen.com\/wp-content\/uploads\/2024\/03\/UNIASEN-factory-gate-1536x1026.webp 1536w, https:\/\/uniasen.com\/wp-content\/uploads\/2024\/03\/UNIASEN-factory-gate-2048x1368.webp 2048w\" sizes=\"auto, (max-width: 2500px) 100vw, 2500px\" \/>                                    \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n   <div id=\"text-box-1194733155\" class=\"text-box banner-layer x50 md-x50 lg-x50 y50 md-y50 lg-y50 res-text\">\n                                <div class=\"text-box-content text dark\">\n              \n              <div class=\"text-inner text-center\">\n                  \n<div class=\"video-button-wrapper\" style=\"font-size:200%\"><a href=\"https:\/\/www.youtube.com\/watch?v=oDiJnYyLsz4\" class=\"button open-video icon circle is-outline is-xlarge\"><i class=\"icon-play\" style=\"font-size:1.5em;\" ><\/i><\/a><\/div>\n              <\/div>\n           <\/div>\n                            \n<style>\n#text-box-1194733155 {\n  width: 60%;\n}\n#text-box-1194733155 .text-box-content {\n  font-size: 100%;\n}\n<\/style>\n    <\/div>\n \n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-2074823467 {\n  padding-top: 56.25%;\n}\n<\/style>\n  <\/div>\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1581320385 {\n  padding-top: 0px;\n  padding-bottom: 0px;\n  background-color: rgba(231, 238, 241, 0.238);\n}\n@media (min-width:550px) {\n  #section_1581320385 {\n    padding-top: 30px;\n    padding-bottom: 30px;\n  }\n}\n<\/style>\n\t<\/section>\n\t\n\t<div id=\"gap-1206686134\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1206686134 {\n  padding-top: 3%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<section class=\"section\" id=\"section_1665412934\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-278507511\">\n\n\n\t<div id=\"col-7336283\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"slider-wrapper relative\" id=\"slider-22182433\" >\n    <div class=\"slider slider-nav-circle slider-nav-large slider-nav-light slider-style-normal\"\n        data-flickity-options='{            \"cellAlign\": \"center\",            \"imagesLoaded\": true,            \"lazyLoad\": 1,            \"freeScroll\": false,            \"wrapAround\": true,            \"autoPlay\": 6000,            \"pauseAutoPlayOnHover\" : true,            \"prevNextButtons\": true,            \"contain\" : true,            \"adaptiveHeight\" : true,            \"dragThreshold\" : 10,            \"percentPosition\": true,            \"pageDots\": true,            \"rightToLeft\": false,            \"draggable\": true,            \"selectedAttraction\": 0.1,            \"parallax\" : 0,            \"friction\": 0.6        }'\n        >\n        \n\n<div class=\"row\"  id=\"row-1784421985\">\n\n\n\t<div id=\"col-1238984959\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1199729094\">\n\t\t<a class=\"\" href=\"https:\/\/uniasen.com\/de\/produkte\/altrohr\/\" target=\"_blank\" rel=\"noopener\" >\t\t\t\t\t\t<div class=\"img-inner image-cover box-shadow-3-hover dark\" style=\"padding-top:75%;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-Carbon-Steel-Welded-Pipe.webp\" class=\"attachment-original size-original\" alt=\"China ERW-Rohr Hersteller\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-Carbon-Steel-Welded-Pipe.webp 600w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-Carbon-Steel-Welded-Pipe-300x200.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\t\t\n<style>\n#image_1199729094 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-850460793\" class=\"text\">\n\t\t\n\n<p><strong>Geschwei\u00dfte Rohre<\/strong><\/p>\n\t\t\n<style>\n#text-850460793 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-850460793 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-219849457\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1985285378\">\n\t\t<a class=\"\" href=\"https:\/\/uniasen.com\/de\/produkte\/ssaw-rohr\/\" target=\"_blank\" rel=\"noopener\" >\t\t\t\t\t\t<div class=\"img-inner image-cover box-shadow-3-hover dark\" style=\"padding-top:75%;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-spiral-welded-pipe-SSAW-Pipe.webp\" class=\"attachment-original size-original\" alt=\"Hersteller und Lieferant von S\u00e4gestahlrohren\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-spiral-welded-pipe-SSAW-Pipe.webp 600w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-spiral-welded-pipe-SSAW-Pipe-300x200.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\t\t\n<style>\n#image_1985285378 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-2278220842\" class=\"text\">\n\t\t\n\n<p><strong>SSAW-Stahlrohre<\/strong><\/p>\n\t\t\n<style>\n#text-2278220842 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-2278220842 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1008338415\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1263360155\">\n\t\t<a class=\"\" href=\"https:\/\/uniasen.com\/de\/produkte\/hohlprofile\/\" target=\"_blank\" rel=\"noopener\" >\t\t\t\t\t\t<div class=\"img-inner image-cover box-shadow-3-hover dark\" style=\"padding-top:75%;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-hollow-structural-section-manufacturer-and-supplier.webp\" class=\"attachment-original size-original\" alt=\"Stahlhohlprofile - Hohlprofile f\u00fcr Bauwerke - Uniasen\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-hollow-structural-section-manufacturer-and-supplier.webp 600w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-hollow-structural-section-manufacturer-and-supplier-300x200.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\t\t\n<style>\n#image_1263360155 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-1149947351\" class=\"text\">\n\t\t\n\n<p><strong>Struktureller Hohlquerschnitt<\/strong><\/p>\n\t\t\n<style>\n#text-1149947351 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-1149947351 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1703426594\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_821185581\">\n\t\t<a class=\"\" href=\"https:\/\/uniasen.com\/de\/produkte\/nahtloses-rohr\/\" target=\"_blank\" rel=\"noopener\" >\t\t\t\t\t\t<div class=\"img-inner image-cover box-shadow-3-hover dark\" style=\"padding-top:75%;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-seamless-carbon-steel-pipe.webp\" class=\"attachment-original size-original\" alt=\"Nahtlose Stahlrohre-SMLS-Rohre\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-seamless-carbon-steel-pipe.webp 600w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-seamless-carbon-steel-pipe-300x200.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\t\t\n<style>\n#image_821185581 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-2135548520\" class=\"text\">\n\t\t\n\n<p><strong>Nahtlose Stahlrohre<\/strong><\/p>\n\t\t\n<style>\n#text-2135548520 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-2135548520 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-701479141\">\n\n\n\t<div id=\"col-993357861\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1083535346\">\n\t\t<a class=\"\" href=\"https:\/\/uniasen.com\/de\/produkte\/rohrformstucke\/\" target=\"_blank\" rel=\"noopener\" >\t\t\t\t\t\t<div class=\"img-inner image-cover box-shadow-3-hover dark\" style=\"padding-top:75%;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-pipe-fitting-manufacturer.webp\" class=\"attachment-original size-original\" alt=\"china rohrverschraubungen-kohlenstoffstahlrohrverschraubungen\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-pipe-fitting-manufacturer.webp 600w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-pipe-fitting-manufacturer-300x200.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\t\t\n<style>\n#image_1083535346 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-2611127968\" class=\"text\">\n\t\t\n\n<p><strong>Rohrverschraubungen Rohrverschraubungen<\/strong><\/p>\n\t\t\n<style>\n#text-2611127968 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-2611127968 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1388418919\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1924155443\">\n\t\t<a class=\"\" href=\"https:\/\/uniasen.com\/de\/steel-pipe-standards\/fire-sprinkler-pipe\/\" target=\"_blank\" rel=\"noopener\" >\t\t\t\t\t\t<div class=\"img-inner image-cover box-shadow-3-hover dark\" style=\"padding-top:75%;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-fire-sprinkler-pipe-supplier-1.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-fire-sprinkler-pipe-supplier-1.webp 600w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/UNIASEN-fire-sprinkler-pipe-supplier-1-300x200.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\t\t\n<style>\n#image_1924155443 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-2217180080\" class=\"text\">\n\t\t\n\n<p><strong>Sprinklerrohr f\u00fcr Feuerl\u00f6scher<\/strong><\/p>\n\t\t\n<style>\n#text-2217180080 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-2217180080 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-697320930\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1680761288\">\n\t\t<a class=\"\" href=\"https:\/\/uniasen.com\/de\/steel-pipe-standards\/line-pipe\/\" target=\"_blank\" rel=\"noopener\" >\t\t\t\t\t\t<div class=\"img-inner image-cover box-shadow-3-hover dark\" style=\"padding-top:75%;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-line-pipe-manufacturer.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-line-pipe-manufacturer.webp 600w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-line-pipe-manufacturer-300x200.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\t\t\n<style>\n#image_1680761288 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-3976562725\" class=\"text\">\n\t\t\n\n<p><strong>Leitungsrohre<\/strong><\/p>\n\n\t\t\n<style>\n#text-3976562725 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-3976562725 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-318549880\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_13444250\">\n\t\t<a class=\"\" href=\"https:\/\/uniasen.com\/de\/steel-pipe-standards\/astm-a106\/\" target=\"_blank\" rel=\"noopener\" >\t\t\t\t\t\t<div class=\"img-inner image-cover box-shadow-3-hover dark\" style=\"padding-top:75%;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-ASTM-A106-Seamless-Carbon-Steel-Pipe.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-ASTM-A106-Seamless-Carbon-Steel-Pipe.webp 600w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/11\/Uniasen-ASTM-A106-Seamless-Carbon-Steel-Pipe-300x200.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\t\t\n<style>\n#image_13444250 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div id=\"text-2403088125\" class=\"text\">\n\t\t\n\n<p><strong>ASTM A106 Nahtlose Stahlrohre<\/strong><\/p>\n\t\t\n<style>\n#text-2403088125 {\n  text-align: center;\n  color: rgb(0,0,0);\n}\n#text-2403088125 > * {\n  color: rgb(0,0,0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n     <\/div>\n\n     <div class=\"loading-spin dark large centered\"><\/div>\n\n\t<\/div>\n\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1665412934 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":4715,"parent":2187,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-blank.php","meta":{"footnotes":""},"class_list":["post-2823","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ASTM A691 Carbon and Alloy Steel Pipe Specification<\/title>\n<meta name=\"description\" content=\"ASTM A691 standard specifies the requirements for carbon and alloy steel pipes that are electric-fusion-welded with added filler metal, crafted from pressure-vessel-quality plates. These pipes, made from Chrome Moly steel, are designed to withstand high temperatures and pressures, making them suitable for demanding industrial applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uniasen.com\/de\/normen\/astm-a691\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ASTM A691 Carbon and Alloy Steel Pipe Specification\" \/>\n<meta property=\"og:description\" content=\"ASTM A691 standard specifies the requirements for carbon and alloy steel pipes that are electric-fusion-welded with added filler metal, crafted from pressure-vessel-quality plates. 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