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Materials, Welding & Coatings

Structural Welding — AWS D1.1

Structural welding code for carbon and low-alloy steels.

Category
Materials, Welding & Coatings
Subcategory
Welding
Applicable standards
2
Issuing bodies
2

Description

Structural welding code for carbon and low-alloy steels.

Applicable Standards (2)

ASME — 1 standard

ASME BPVC Sec IX Welding, Brazing and Fusing Qualifications
Edition: 2023 Edition Region: USA, Global
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.

AWS — 1 standard

AWS D1.1 / D1.1M Structural Welding Code — Steel
Edition: 2020 Region: USA, Global
Structural welding (not pressure-containing) of carbon and low-alloy steels.