Qualification and welding procedure certification

Welder’s qualification test certificate is a proof that the welder can perform welding operations by a certain welding process on a particular base material and in certain welding positions.
 In order for the company to perform welding operations on a particular product, it is necessary to have approved Welding Procedures (WPS). In this way, it is proved that the welding by a certain welding process and certain welding consumable, meets the required characteristics of the welded joint, both mechanical and metallurgical characteristics. 
Prior to the Welding Procedure (WPS), it is necessary to test the welding procedure and create a welding procedure record (WPAR / PQR). Our company provides a complete service for welding procedure qualification : 
• Preparation of preliminary welding procedure specification (pWPS).
• Welding of test specimens with all the most commonly used welding processes in our workshop, or in client’s workshop.
• Non-destructive and destructive tests according to the welding procedure qualification requirements.
• Processing the results and issuing required records (WPAR and WPS).
 Certification of welding procedures is most commonly performed according to ISO 15614-1: 2017 and, where applicable, according to other applicable standards and regulations for welding procedure certification, according to the specific client’s requirements. 
Welder’s certification can be done in in our workshop, in client’s workshop or directly on the site. Welders’ certificate is valid for 2 (or 3) years, after which it has to be extended for another 2 years. After the expiration of 4 years, it’s necessary to renew certificate. The certificate is only valid if the welder is controlled at least every 6 months for the welding work that is covered by the welder’s certificate. If the certificate is not properly and regularly filled, the certificate is considered invalid and needs to be renewed.
 After welding test samples and satisfactory results after a visual inspection, non-destructive testing (RT, UT, MT, PT) and additional destructive testing of weld sample (bend test, tensile strength test, toughness test, etc.) according to the specific requirements of the standard for welding procedure certification. 
After a successful certification, the Welder’s qualification test certificate is issued by either our Engineer or Welding Technician (IWE/EWE and/or IWT/EWT) or by the Classification Society. 
The welding test is carried out under the supervision of welding specialists with the required EWF certificates (IWE/EWE and/or IWT/EWT) or, if necessary, under the supervision of one of the Classification Societies (LR, DNV, BV, HRB and others) and according to the specific client’s requirements.

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