ISO 3834 Welding Quality System Certification

Scope

ISO 3834 is an international welding quality management standard developed under the leadership of ISO/TC 44/SC 10 of the International Organization for Standardization. It applies to all metal fabrication enterprises requiring permanent welding, widely used in steel structures, bridges, pressure vessels, energy equipment, ships, rail transportation, offshore engineering, and heavy industrial equipment. This certification is a prerequisite for CE marking (e.g., EN 1090) in the EU market and is widely recognized by international engineering projects.

[Certification Content]

ISO 3834 focuses on quality control throughout the welding process, including:

• Welding Procedure Qualification (PQR)

• Welding Operator and Welder Qualifications

• Material Procurement, Identification, and Traceability Control

• Inspection Plans and Quality Records (e.g., ITP/NDT/Documentation)

• Management and Calibration of Testing Equipment

• Quality Management Responsibilities and Training

• Document Control and Continuous Improvement Measures

[Certification Levels]

Based on the criticality of safety-critical products, manufacturing complexity, product scope of production, scope of different applied materials, potential risk level of metallurgical issues, and impact degree of manufacturing defects on product performance, ISO 3834 certification is classified into the following three levels:

• ISO 3834-2 (Comprehensive Quality Requirements)

• ISO 3834-3 (Normal Quality Requirements)

• ISO 3834-4 (Elementary Quality Requirements)

[Certification Process]

1. Initial Assessment and Standard Implementation: Shanghai Allmark assists enterprises in defining welding scope, conducting gap analysis, and determining the appropriate certification level.

2. Training and System Establishment: Provide welding quality management training (including welding manuals, procedural documents, work instructions, etc.) and assist in developing system documents compliant with ISO 3834 requirements.

3. Welding Procedure and Personnel Qualification: Guides enterprises through pWPS preparation and PQR qualifications and organizes welder/operator skill testing and certification.

4. Internal Audit and Mock Inspection: Conducts internal audits to ensure system effectiveness and identifies potential non-conformities in advance.

5. Third-Party Certification Audit: Assists enterprises in coordinating with certification bodies and provides on-site support during audits.

6. Certification and Surveillance: After certification, enterprises enter a periodic surveillance audit mechanism to continuously improve welding quality management.

[Allmark Advantages]

• 15+ years of experience in international welding quality standards.

• Expertise in integrating ISO 3834 with EN 1090, AISC, CWB, and other systems.

• Successfully guided hundreds of enterprises to achieve "zero-rectification certification."

• Professional team support throughout the process, reducing certification timelines.

• Provides integrated consulting services for European CE certification.

[Why Choose ISO 3834?]

• Meets international engineering project welding quality requirements.

• Enhances management capabilities and market competitiveness.

• Lays a solid foundation for structural certifications like EN 1090.

• Builds customer trust in product welding reliability.