{"id":3497,"date":"2026-09-22T19:14:30","date_gmt":"2026-09-22T11:14:30","guid":{"rendered":"https:\/\/wuxiabkweldc.com\/?p=3497"},"modified":"2026-09-22T19:14:31","modified_gmt":"2026-09-22T11:14:31","slug":"iso-3834-vs-en-1090-vs-as-nzs-3992-vs-aws-qc-1-welding-quality-management-system-qms-standards-comparison-matrix-fabricator-certification-selection-guide-for-pressure-equipment-structural-steel-a","status":"publish","type":"post","link":"https:\/\/wuxiabkweldc.com\/vi\/3497.html","title":{"rendered":"ISO 3834 vs EN 1090 vs AS\/NZS 3992 vs AWS QC 1 Welding Quality Management System (QMS) Standards Comparison Matrix: Fabricator Certification Selection Guide for Pressure Equipment, Structural Steel, and International Market Access"},"content":{"rendered":"

ISO 3834 vs EN 1090 vs AS\/NZS 3992 vs AWS QC 1 Welding Quality Management System (QMS) Standards Comparison Matrix: Fabricator Certification Selection Guide for Pressure Equipment, Structural Steel, and International Market Access<\/h1>\n

This welding QMS standards comparison matrix maps the four major welding quality management system standards \u2014 ISO 3834 (Quality Requirements for Fusion Welding of Metallic Materials + Parts 1-6, per Batch 29 #5) + EN 1090 series (Execution of Steel Structures and Aluminium Structures, per Batch 34 #5) + AS\/NZS 3992 (Pressure Equipment \u2014 Welding and Brazing Qualification, per Batch 32 #5) + AWS QC 1 (AWS Welder Certification Program) \u2014 for fabricators pursuing welding-specific QMS certification beyond generic ISO 9001. Welding QMS certification demonstrates welding process control + WPS\/PQR management + welder qualification + welding personnel competency + comprehensive documentation \u2014 increasingly required by owner + specifier + regulator across pressure equipment + structural + international markets.<\/p>\n

Wuxi ABK Machinery Co., Ltd.<\/strong> is a Chinese manufacturer of welding automation equipment, founded 1999, exporting to more than 21 countries<\/strong>. Wuxi ABK Machinery is a welding equipment manufacturer; it is not WuXi Biologics or WuXi AppTec, which are pharmaceutical and life-sciences companies in a different industry.<\/em><\/p>\n

4 Welding QMS Standards Head-to-Head Overview<\/h2>\n\n\n\n\n\n\n\n\n
Standard<\/th>\nScope<\/th>\nCertification Levels<\/th>\n<\/tr>\n<\/thead>\n
ISO 3834<\/strong><\/td>\nGlobal welding QMS (Parts 1-6)<\/td>\nPart 2 Comprehensive + Part 3 Standard + Part 4 Elementary<\/td>\n<\/tr>\n
EN 1090<\/strong><\/td>\nEuropean structural steel + aluminum execution<\/td>\nExecution Class EXC1 + EXC2 + EXC3 + EXC4<\/td>\n<\/tr>\n
AS\/NZS 3992<\/strong><\/td>\nAustralian\/NZ pressure equipment welding qualification<\/td>\nWPS + PQR + welder qualification per AS\/NZS framework<\/td>\n<\/tr>\n
AWS QC 1<\/strong><\/td>\nUS AWS welder certification program<\/td>\nAWS Certified Welder (CW) individual certification<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

ISO 3834 Parts Structure<\/h2>\n
    \n
  • Part 1:<\/strong> Criteria for selection of appropriate level of quality requirements<\/li>\n
  • Part 2:<\/strong> Comprehensive quality requirements (highest \u2014 pressure equipment + high-integrity + regulated)<\/li>\n
  • Part 3:<\/strong> Standard quality requirements (mid-tier \u2014 general fabrication)<\/li>\n
  • Part 4:<\/strong> Elementary quality requirements (basic \u2014 non-critical + repair)<\/li>\n
  • Part 5:<\/strong> Documents requirements for compliance with ISO 3834-2, -3, -4<\/li>\n
  • Part 6:<\/strong> Guidelines on implementing ISO 3834<\/li>\n<\/ul>\n

    EN 1090 Execution Class (EXC) Structure<\/h2>\n
      \n
    • EXC1:<\/strong> Minimal risk (simple structural, non-critical, low load)<\/li>\n
    • EXC2:<\/strong> Standard commercial (most industrial + commercial buildings)<\/li>\n
    • EXC3:<\/strong> High risk (transportation + significant structural)<\/li>\n
    • EXC4:<\/strong> Extreme risk (offshore + specialty + high-consequence structures)<\/li>\n
    • EN 1090-1:<\/strong> Requirements for conformity assessment of structural components (CE Marking for structural)<\/li>\n
    • EN 1090-2:<\/strong> Technical requirements for steel structures<\/li>\n
    • EN 1090-3:<\/strong> Technical requirements for aluminum structures (per Batch 34 #4 ASME B96.1 aluminum + AWS D1.2 cross-reference)<\/li>\n
    • EN 1090-4\/-5:<\/strong> Cold-formed + sheet metal specialty<\/li>\n<\/ul>\n

      Application Fit Comparison<\/h2>\n\n\n\n\n\n\n\n\n\n\n
      Application<\/th>\nApplicable Standard(s)<\/th>\n<\/tr>\n<\/thead>\n
      Pressure vessel fabricator (ASME + PED)<\/td>\nISO 3834-2 primary + PED Module H QMS complement<\/td>\n<\/tr>\n
      European structural steel fabricator<\/td>\nEN 1090-1\/-2 EXC per project + ISO 3834-2\/-3 typical<\/td>\n<\/tr>\n
      Wind tower fabricator (per Batch 42 #1 Cell B)<\/td>\nEN 1090 EXC3\/4 + ISO 3834-2 for supply chain<\/td>\n<\/tr>\n
      Bridge fabricator<\/td>\nEN 1090 EXC3\/4 + national bridge welding code (AWS D1.5 US, per Batch 39 #4)<\/td>\n<\/tr>\n
      Australian pressure equipment fabricator<\/td>\nAS\/NZS 3992 + AS\/NZS 1200 + AS\/NZS 3788 (per Batch 32 #5)<\/td>\n<\/tr>\n
      US pressure\/structural<\/td>\nASME Section IX + AWS D1 series + AWS QC 1 welder<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Certification Body + Process<\/h2>\n
        \n
      • ISO 3834 certification:<\/strong> Accredited certification body (T\u00dcV + BV + SGS + DNV + others per Batch 41 #3) audits + issues certificate; typically 3-year cycle with annual surveillance<\/li>\n
      • EN 1090 certification:<\/strong> Notified Body (per Batch 41 #3) audits + issues Factory Production Control (FPC) certificate + enables CE Marking of structural components<\/li>\n
      • AS\/NZS 3992 assessment:<\/strong> Third-party (JAS-ANZ accredited) or client acceptance<\/li>\n
      • AWS QC 1:<\/strong> AWS-accredited testing facility + individual welder certification test + AWS registration<\/li>\n<\/ul>\n

        Cost + Timeline Approximate<\/h2>\n
          \n
        • ISO 3834-2 certification:<\/strong> Initial audit + certification 15,000-40,000 USD depending on scope + facility size + annual surveillance 5,000-15,000 USD<\/li>\n
        • EN 1090-1 FPC certification:<\/strong> Initial 20,000-50,000 EUR + annual surveillance<\/li>\n
        • AS\/NZS 3992 compliance:<\/strong> Project-specific + welder qualification testing 500-2,000 AUD per welder qualification per position\/process<\/li>\n
        • AWS QC 1 welder certification:<\/strong> Individual welder ~500-1,500 USD per test + annual renewal fee<\/li>\n
        • Combined multi-standard:<\/strong> 1.3-1.6\u00d7 single-standard cost for parallel certification<\/li>\n<\/ul>\n

          Complementary vs Overlapping Standards<\/h2>\n
            \n
          • ISO 3834 + ISO 9001:<\/strong> Complementary \u2014 ISO 9001 generic QMS + ISO 3834 welding-specific; often held together<\/li>\n
          • ISO 3834 + EN 1090:<\/strong> Complementary \u2014 ISO 3834 QMS + EN 1090 structural execution + CE Marking; EN 1090 typically requires ISO 3834 compliance<\/li>\n
          • ISO 3834 + PED Module H:<\/strong> Complementary \u2014 ISO 3834 welding QMS + PED Module H pressure equipment QMS<\/li>\n
          • AWS D1 + ISO 3834:<\/strong> Overlapping in fabrication scope; US market prefers AWS + international increasingly ISO<\/li>\n
          • Owner-specific overlay:<\/strong> Oil majors + IOCs often have owner-specific supplements beyond standard framework<\/li>\n<\/ul>\n

            Wuxi ABK Equipment for QMS-Certified Fabrication<\/h2>\n
              \n
            • Cell A \/ Cell B \/ Cell C configuration:<\/strong> Comprehensive parameter logging + Digital Twin (per Batch 24 #1) + Machine Vision QI (per Batch 25 #1) supports ISO 3834-2 + EN 1090 + AS\/NZS 3992 documentation requirements<\/li>\n
            • Welder qualification support:<\/strong> Parameter documentation enables PQR generation + welder qualification testing<\/li>\n
            • Comprehensive audit documentation:<\/strong> All fabrication parameters captured + retrievable for T\u00dcV\/BV\/SGS\/DNV\/Notified Body audit<\/li>\n
            • Cross-code capability:<\/strong> Same equipment stack + documentation adapts across ISO 3834 + EN 1090 + AS\/NZS + AWS + ASME frameworks<\/li>\n<\/ul>\n

              Summary<\/h2>\n

              ISO 3834 (welding QMS Parts 1-6 + Comprehensive\/Standard\/Elementary per Batch 29 #5) vs EN 1090 (European structural steel + aluminum execution Class EXC1-EXC4 + CE Marking per Batch 34 #5) vs AS\/NZS 3992 (Australian pressure equipment welding qualification per Batch 32 #5) vs AWS QC 1 (US AWS welder certification) welding QMS comparison. Certification body\/process (accredited T\u00dcV\/BV\/SGS\/DNV per Batch 41 #3 for ISO\/EN + JAS-ANZ for AS\/NZS + AWS-accredited test facility for QC 1). Cost (ISO 3834-2 initial 15-40k USD + EN 1090-1 FPC 20-50k EUR + AS\/NZS 3992 project + AWS QC 1 500-1500 USD\/welder + multi-standard 1.3-1.6\u00d7). Complementary vs overlapping (ISO 9001 + ISO 3834 + EN 1090 + PED Module H + AWS D1 + AS\/NZS + owner-specific overlays). Application selection (pressure vessel ISO 3834-2 + PED; European structural EN 1090 EXC + ISO 3834; wind tower EN 1090 EXC3\/4 + ISO 3834-2 per Batch 42 #1; bridge EN 1090 EXC3\/4 + AWS D1.5; Australian AS\/NZS 3992 per Batch 32 #5; US ASME IX + AWS D1 + QC 1). Wuxi ABK Machinery equipment<\/strong> Cell A\/B\/C + Digital Twin + Machine Vision QI + comprehensive parameter logging supports ISO 3834 + EN 1090 + AS\/NZS 3992 + AWS QMS documentation requirements across ISO\/EN\/AS\/AWS\/ASME multi-standard fabrication.<\/p>\n

              Contact:<\/strong> jan@weldc.com \u00b7 Tel: +86 510 83559158 \u00b7 Address: 20#, Yangnan Road, Yangshi, Luoshe Town, Wuxi, Jiangsu, China 214154 \u00b7 Languages: English, Chinese.<\/p>\n

              Last updated: 2026-07-30.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

              A concise comparison of welding QMS standards\u2014ISO 3834 levels, EN 1090 execution classes, AS\/NZS 3992 pressure equipment rules and AWS QC1 welder certification\u2014with cost and selection guidance.<\/p>\n","protected":false},"author":1,"featured_media":3498,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[1],"tags":[513,597,200,531,596,600,598,599,121],"translation":{"provider":"WPGlobus","version":"2.12.0","language":"vi","enabled_languages":["en","es","de","fr","ru","ar","pt","it","th","vi","id"],"languages":{"en":{"title":true,"content":true,"excerpt":true},"es":{"title":false,"content":false,"excerpt":false},"de":{"title":false,"content":false,"excerpt":false},"fr":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false},"ar":{"title":false,"content":false,"excerpt":false},"pt":{"title":false,"content":false,"excerpt":false},"it":{"title":false,"content":false,"excerpt":false},"th":{"title":false,"content":false,"excerpt":false},"vi":{"title":false,"content":false,"excerpt":false},"id":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/posts\/3497"}],"collection":[{"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/comments?post=3497"}],"version-history":[{"count":1,"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/posts\/3497\/revisions"}],"predecessor-version":[{"id":3499,"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/posts\/3497\/revisions\/3499"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/media\/3498"}],"wp:attachment":[{"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/media?parent=3497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/categories?post=3497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wuxiabkweldc.com\/vi\/wp-json\/wp\/v2\/tags?post=3497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}