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AS/NZS 5131 Certification

Key Market Access Requirement for Australia & New Zealand Structural Steel Industry

AS/NZS 5131 is a jointly developed Australian and New Zealand standard for structural steel fabrication and erection. Since its first publication in 2016, it has become a recognized best practice standard in the structural steel industry. Structural steel products and services entering Australia and New Zealand markets need to demonstrate compliance with AS/NZS 5131 requirements.

Certification Standard Structure

· AS/NZS 5131 Structural Steel Fabrication and Erection: Defines minimum requirements for fabrication, corrosion protection, erection and modification of structural steel.

· AS/NZS ISO 3834 Quality Requirements for Fusion Welding of Metallic Materials: Core supporting standard for welding quality control.

· AS 4100 Steel Structures: Design compliance review standard.

· AS 5100.6 Bridge Design – Part 6: Steel and Composite Construction: Design basis for bridge steel structures.

Construction Category (CC) Classification

· CC1: Simple low-risk structures.

· CC2: Standard structural steel projects.

· CC3: High-risk structures requiring strict quality control and traceability, such as bridges and major infrastructure.

· CC4: Special or complex structures requiring additional project-specific requirements.

Certification Value

· Key market access qualification for Australia and New Zealand.

· Enhance international bidding competitiveness.

· Standardize quality management systems.

· Reduce project risks and improve customer confidence.

· Strengthen corporate reputation and brand value.


  • AS/NZS 5131 Certification Process

    AS/NZS 5131 is the official AU & NZ standard for steel structure fabrication & installation, assessing manufacturers’ quality management covering welding, staff certification, material control, testing and traceability.

  • AS/NZS ISO 3834 Certification

    AS/NZS ISO 3834 certification audits steel fabricators’ welding quality systems, covering welding procedures, staff credentials, material control, product testing and traceability.

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