Welder Qualification Test Certificate
The welder's certificate of approval is an official proof of a welder's skills according to ISO 9606. It confirms suitability for specific materials and welding positions.
Physicochemical Mechanism of Action
The certificate is not a description of physics or chemistry, but proof of skills. It confirms that the welder has certain knowledge and skills in the relevant welding processes and materials.
Metallurgical Relevance & Welding Risks
The certificate is decisive for safety and quality in welding. Without a valid certificate, proof of qualification is missing, which can lead to defects like cracks, incomplete penetration or poor toughness.
Workshop Practice & Instructions
To obtain the certificate, the welder must pass tests. These consist of practical parts and theoretical knowledge about materials and welding processes. They are carried out by independent bodies and must be renewed regularly.