What is the EN 15085 Standard?

EN 15085 is the European standard for the welded manufacturing of railway vehicles and components. This standard aims to ensure that welding operations are carried out under controlled conditions and that product safety is guaranteed.

The EN 15085 standard generally consists of the following parts:

• EN 15085-1: General rules

• EN 15085-2: Quality requirements and certification for welding manufacturers

• EN 15085-3: Design requirements

• EN 15085-4: Production rules

• EN 15085-5: Inspection, testing, and documentation

Thanks to this structure, welded manufacturing processes in the railway sector are kept under control from end to end.

How is the EN 15085-2 conformity assessment process carried out?

The EN 15085-2 conformity assessment process is conducted by examining the quality system and production competence of organizations engaged in welded manufacturing.

The process generally consists of the following stages:

• Examination of the quality management system

• Evaluation of the EN ISO 3834 welding quality system

• Verification of welding procedures (WPS)

• Validation of welder and operator qualifications

• Evaluation of production infrastructure

• Examination of non-destructive testing (NDT) processes

• Verification of traceability and record-keeping systems

Upon completion of the assessment, an EN 15085-2 certificate may be issued to the enterprise based on its relevant CL (Certification Level) class.

Why is EN 15085-2 Applied?

Welded manufacturing in the railway sector is directly linked to human safety. Therefore, it is essential to bring production processes under control.

Reasons for implementing the EN 15085-2 standard:

• Ensuring structural safety in railway vehicles

• Standardizing welded manufacturing quality

• Compliance with international railway projects

• Reducing production defects

• Strengthening the traceability system

• Supporting CE and railway compliance processes

What Are the Application Areas of EN 15085-2?

The EN 15085-2 standard applies to all welded manufacturing processes, particularly within the railway industry.

Key areas of application:

• Train car bodies

• Locomotive frames and load-bearing structures

• Metro and tram bodies

• Bogies and undercarriage systems

• Railway connection components

• Structural welded steel components

• Railway maintenance and overhaul processes

Equipment and Techniques Used Within the Scope of EN 15085-2

Under EN 15085-2, assessment is conducted based on the production system, not just the product itself.

Techniques and equipment used:

• EN ISO 3834 quality system audits

• EN ISO 9606 welder certification checks

• EN ISO 14732 welding operator qualification reviews

• EN ISO 15614 welding procedure approval tests

• Non-destructive testing (UT, RT, MT, PT)

• Mechanical testing equipment

• Spectrometers and chemical analysis systems

• Production traceability and documentation checks

EN 15085-2 Advantages

• Ensures high safety in railway vehicles

• Elevates welded manufacturing quality to an international level

• Establishes standardization in production processes

• Strengthens the traceability system

• Clarifies production capability through CL classification

• Facilitates access to global railway projects

Disadvantages of EN 15085-2

• Requires extensive documentation

• Imposes high qualification requirements for welding personnel

• Audit and certification processes can be time-consuming

• Creates an additional quality control burden on production processes

Nevertheless, EN 15085-2 is one of the fundamental requirements for safe and standardized production in the railway sector.

Contact us

You may contact us for detailed information regarding the audit and conformity assessment processes carried out under the scope of EN 15085-2 Railway Applications – Welding of Railway Vehicles and Components.

The assessment activities conducted by our organization are carried out within the framework of international standards for the railway sector, and services are provided to verify the conformity of welded manufacturing processes.