Category
Materials, Welding & Coatings
Subcategory
Welding
Applicable standards
3
Issuing bodies
2
Description
European / international welding procedure qualification (ISO 15614 series).
Applicable Standards (3)
ASME — 1 standard
ASME BPVC Sec IX
Welding, Brazing and Fusing Qualifications
Welding/brazing procedure and welder/operator qualification.
Key requirements (8)
- Welding and brazing qualifications.
- WPS (Welding Procedure Spec) supported by PQR (Procedure Qualification Record).
- PQR essential variables include: P-number, F-number, A-number, thickness range, position, preheat, PWHT, impact.
- Welder/operator qualification: bend tests OR radiography per QW-302.
- Coupon thickness qualifies a range: Table QW-451 (e.g., 25 mm coupon qualifies 5–50 mm).
- Position qualification: 6G qualifies all positions for pipe.
- Performance qualification expires if 6 months without welding (re-qualify).
- Notch toughness essentials when impact required by construction code.
ISO — 2 standards
ISO 15614 (series)
Specification and qualification of welding procedures for metallic materials — Welding procedure test
Welding procedure qualification — international counterpart of ASME Sec IX.
ISO 9606 (series)
Qualification testing of welders — Fusion welding
Welder performance qualification (ISO).