Welding Procedure Qualification Record — WPQR

Introduction to Welding Procedure Qualification

WPQR (Welding Procedure Qualification Record) refers to the test process and result evaluation used to verify the rationality and feasibility of the formulated welding procedure.

Purposes of Welding Procedure Qualification

01
Assess whether the manufacturer is capable of producing welded joints that comply with national, industrial and technical specification requirements;
02
Verify the correctness of the formulated Welding Procedure Specification (WPS / pWPS).
03
Ensure stable welding quality and provide valid technical evidence for factory quality control.

Scope of EU Welding Procedure Qualification

01Application Industry

Applicable to the manufacturing, installation and maintenance of boilers, pressure vessels, pressure pipelines, bridges, ships, aerospace equipment, nuclear facilities and load-bearing steel structures;
02Welding Methods

Applicable to gas welding, MMA welding, TIG welding, MIG/MAG welding, submerged arc welding, plasma welding, electroslag welding, stud welding, laser welding, resistance welding and other processes.

Welding Procedure Qualification Process

1. Formulate pWPS (Preliminary Welding Procedure Specification);

2. Weld test pieces and prepare test samples;

3. Conduct inspection and testing on test pieces;

4. Verify whether welded joints meet the required service performance;

5. Issue the WPQR report to approve and confirm the welding procedure specification.

Welding Procedure Qualification Standards

EN ISO 15614-1:2004/A2:2012 — Welding procedure qualification for steel, nickel and nickel alloys
EN ISO 15614-2:2005/AC:2009 — Welding procedure qualification for aluminium and aluminium alloys
EN ISO 15614-4:2005/AC:2007 — Welding procedure qualification for cast iron
EN ISO 15614-5:2004 — Welding procedure qualification for titanium, zirconium and their alloys
EN ISO 15614-6:2006 — Welding procedure qualification for copper and copper alloys
EN ISO 15614-7:2007 — Welding procedure qualification for surfacing welding
EN ISO 15614-8:2002 — Specification and qualification of welding procedures for metallic materials
EN ISO 15614-11:2002 — Welding procedure qualification for electron beam and laser welding
EN ISO 15620:2000 — Friction welding of metallic materials