Introduction
In the offshore environment, where equipment must withstand heavy loads and highly corrosive conditions, the quality of every single weld directly determines the safety and service life of a structure. This is why EN ISO 3834 exists: it is the international standard that sets out quality management requirements for the fusion welding of metallic materials.
Unlike ISO 9001, which governs overall quality management systems, EN ISO 3834 focuses specifically on welding processes, helping manufacturers control quality throughout production rather than relying solely on final inspection.
What is EN ISO 3834?
EN ISO 3834 is an internationally recognized standard that specifies comprehensive quality requirements for the fusion welding of metallic materials.
Figure 1: EN ISO 3834 standard series overview diagram
By implementing EN ISO 3834, manufacturers can consistently produce welded components that meet demanding engineering requirements across offshore, oil & gas, heavy industry, and structural steel applications.
What Does EN ISO 3834-2 Require?
To comply with EN ISO 3834-2, manufacturers must establish a comprehensive welding quality management system covering every stage of fabrication.
Key requirements include:
- Approved Welding Procedure Specifications (WPS) and Procedure Qualification Records (PQR)
- Qualified welders and competent welding personnel
- Full traceability of base materials and welding consumables
- In-process inspection and quality control throughout fabrication
- Complete manufacturing documentation and traceable quality records
The objective is to ensure that every weld is produced under a standardized, controlled process rather than relying solely on individual craftsmanship.
How OTS Applies EN ISO 3834-2
Figure 2. OTS EN ISO 3834-2 Certification
At OTS Offshore, EN ISO 3834-2 is fully integrated into our manufacturing workflow—from engineering and fabrication to inspection and final delivery.
Engineering & Design
Each structure is developed using professional 3D engineering software before production begins. Designs are thoroughly reviewed to identify and resolve potential technical issues early in the engineering phase.
Welding & Fabrication
All welding activities are performed in accordance with qualified WPS/PQR documentation by certified welders meeting project-specific qualification requirements.
Quality Inspection
Critical welded joints are inspected using appropriate Non-Destructive Testing (NDT) methods based on project specifications prior to final acceptance.
Quality Documentation
Complete manufacturing records are maintained throughout production, ensuring full traceability for every fabricated component.
In addition to EN ISO 3834-2, OTS operates under internationally recognized management systems including:
- EN 1090-2 EXC3
- ISO 9001:2015
- ISO 45001:2018
These standards support a consistent and integrated quality management system for offshore equipment manufacturing.
Benefits for Customers
Working with an EN ISO 3834-2 certified manufacturer provides several advantages:
Figure 3. Customer Benefits
For OTS, EN ISO 3834-2 is more than a certification—it forms the foundation of our manufacturing quality system and reflects our commitment to delivering offshore equipment that meets demanding engineering and project requirements.
Contact OTS Offshore
Looking for a trusted offshore fabrication partner with internationally recognized welding quality standards? Contact OTS Offshore today to discuss your project requirements and discover how our certified manufacturing capabilities can support your next offshore development.
- Phone: +84 908 52 54 74 – (0254) 354 0969
Email: [email protected] – [email protected]
