{"id":2789,"date":"2025-11-18T15:08:46","date_gmt":"2025-11-18T15:08:46","guid":{"rendered":"https:\/\/leffer.de\/qualitat-sicherheit\/zertifikate\/en-iso-3834-2\/"},"modified":"2026-01-30T09:37:58","modified_gmt":"2026-01-30T09:37:58","slug":"en-iso-3834-2","status":"publish","type":"page","link":"https:\/\/leffer.de\/en\/our-competencies\/en-iso-3834-2\/","title":{"rendered":"EN ISO 3834-2\u00a0"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Certification according to <strong>EN ISO 3834-2<\/strong> is the international benchmark for the highest quality requirements in the welding of metallic materials. It confirms that our welding processes, our skilled workers, and our quality assurance comply with the most stringent standards.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Scope of application:<\/strong> Steel construction, gas tanks, mechanical engineering, bridge construction, and hydraulic engineering<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Welding processes:<\/strong> 111, 114, 121, 122, 125, 135, 136, 138, 141, 142, 783 according to DIN EN ISO 4063<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Base materials:<\/strong> 1.1, 1.2, 1.3, 2.1, 2.2, 3.1, 3.2, 5, 8.1, 8.2, 10.1, 43, 51 according to CEN ISO\/TR 15608<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Validity:<\/strong> May 31, 2024 to May 27, 2027<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Certificate No.:<\/strong> D-ZE-16083-01-00-ISO3834-2014.0243.008<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Certifying body:<\/strong> DVS ZERT<\/p>\n\n\n\n    <div page class=\"singlepost wp-block-fbo-singlepost\" id=\"6a71f59b9065b\">\n\n        \n<a href=\"https:\/\/leffer.de\/wp-content\/uploads\/2025\/11\/DIN-EN-ISO-3834-2_2021_Schweissen-Stahlbau_engl.pdf\" target=\"_blank\"  class=\"postarchive__download icon icon-download\">\n   <p class=\"download__title\">DIN EN ISO 3834-2<\/p>\n   <div class=\"download__data\">\n        <span class=\"download__size\">623.33 KB<\/span>\n        <span class=\"download__type\">(pdf)<\/span>\n    <\/div>\n\n<\/a>\n    <\/div>\n\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/leffer.de\/en\/kompetenzen\/zertifikate\/\"><span class=\"button-text icon icon-arrow-stroke\">Back to Certifications<\/span><\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Certification according to EN ISO 3834-2 is the international benchmark for the highest quality requirements in the welding of metallic materials. It confirms that our welding processes, our skilled workers, and our quality assurance comply with the most stringent standards. Scope of application: Steel construction, gas tanks, mechanical engineering, bridge construction, and hydraulic engineering Welding [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":2683,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"featuredimage_focalpoint":[],"footnotes":""},"categories":[],"tags":[],"class_list":["post-2789","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>EN ISO 3834-2\u00a0 - Leffer - Stahl- und Apparatebau<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EN ISO 3834-2\u00a0 - Leffer - Stahl- und Apparatebau\" \/>\n<meta property=\"og:description\" content=\"Certification according to EN ISO 3834-2 is the international benchmark for the highest quality requirements in the welding of metallic materials. It confirms that our welding processes, our skilled workers, and our quality assurance comply with the most stringent standards. 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It confirms that our welding processes, our skilled workers, and our quality assurance comply with the most stringent standards. Scope of application: Steel construction, gas tanks, mechanical engineering, bridge construction, and hydraulic engineering Welding [&hellip;]","og_url":"https:\/\/leffer.de\/en\/our-competencies\/certifications__trashed\/en-iso-3834-2\/","og_site_name":"Leffer - Stahl- und Apparatebau","article_modified_time":"2026-01-30T09:37:58+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/leffer.de\/en\/our-competencies\/certifications__trashed\/en-iso-3834-2\/","url":"https:\/\/leffer.de\/en\/our-competencies\/certifications__trashed\/en-iso-3834-2\/","name":"EN ISO 3834-2\u00a0 - Leffer - Stahl- und Apparatebau","isPartOf":{"@id":"https:\/\/leffer.de\/#website"},"datePublished":"2025-11-18T15:08:46+00:00","dateModified":"2026-01-30T09:37:58+00:00","breadcrumb":{"@id":"https:\/\/leffer.de\/en\/our-competencies\/certifications__trashed\/en-iso-3834-2\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/leffer.de\/en\/our-competencies\/certifications__trashed\/en-iso-3834-2\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/leffer.de\/en\/our-competencies\/certifications__trashed\/en-iso-3834-2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"https:\/\/leffer.de\/en\/"},{"@type":"ListItem","position":2,"name":"Our Competencies","item":"https:\/\/leffer.de\/en\/our-competencies\/"},{"@type":"ListItem","position":3,"name":"EN ISO 3834-2\u00a0"}]},{"@type":"WebSite","@id":"https:\/\/leffer.de\/#website","url":"https:\/\/leffer.de\/","name":"Leffer - Stahl- und Apparatebau","description":"Stahl- und Apparatebau","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/leffer.de\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/pages\/2789","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/comments?post=2789"}],"version-history":[{"count":2,"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/pages\/2789\/revisions"}],"predecessor-version":[{"id":2859,"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/pages\/2789\/revisions\/2859"}],"up":[{"embeddable":true,"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/pages\/2683"}],"wp:attachment":[{"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/media?parent=2789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/categories?post=2789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/leffer.de\/en\/wp-json\/wp\/v2\/tags?post=2789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}