AWS D1.1 – Type of qualification tests required - Welder and welding operator performance qualification

welder

AWS D1.1 2020

Type of qualification tests required in groove weld, Clause 6.17 (non-tubular) and Clause 10.16 (tubular)

  • Substitution of RT for guided bend tests: Clause 6.23.3 (non-tubular) and Clause 10.21.2 (tubular).

Tack welders

  • For non-tubular, Clause 6.17.2 and Clause 6.24.
  • For tubular, Clause 10.17.

Test specimens

  • Non-tubular
    o Welder, Clause 6.21.1, length of test coupon L = 180 mm (recommended 200 mm).
    o Welding operator, Clause 6.21.2, length of test coupon L = 380 mm (recommended 400 mm).

  • Tubular
    o Welder and Welding operator, Clause 10.17, also Clause 10.21.2, length of test coupon L = 150 mm.
    image

Essential variables

Clause 6.20 and Table 6.12.

Qualification form

  • Suggest form: AWS D1.1 Annex M or get free template here.

Period of effectiveness

  • Within six months, Clause 6.2.3
  • Retest, Clause 6.25.1

Common questions

  • Qualification responsibility, see Clause 6.2.2.2.
  • Change F-Number are not allowed, see Table 6.12 line 2 and Table 6.13.
  • Test specimens are recommended DN 200 12.7 mm.
  • Third party should invite to endorse the documents, such ABS, DNV, LR, BV or other international society classification.

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AWS D1.1 2015

Type of qualification tests required in groove weld

  • Visual inspection, Clause 4.22.1

  • Guided – bend test,
    o Clause 4.16.2 (non-tubular) and Table 4.11
    o Clause 9.17.1 (tubular)

  • Substitution of RT (except GMAW-S process),
    o Clause 4.22.3 (non-tubular) and Table 9.13
    o Clause 9.18 (tubular)

Type of qualification tests required in fillet weld

  • Visual inspection, Clause 4.22.1
  • Macroetch, Clause 4.22.2, Clause 9.22
  • Fillet weld brack, Clause 4.22.4, Clause 9.21

Tack welders

  • For non-tubular, Clause 4.16.2
  • For tubular, Clause 9.17.2

Test specimens

  • Non-tubular
    o Welder: min. 180 mm in length for all positions, discard 32 mm both side for RT test.
    o Welding operator: min. 380 mm in length for all positions, discard 75 mm both site for RT test.
  • Tubular
    o Test coupon, OD >= 100 mm: min. one-half of pipe, see 9.22.2
    o Test coupon, OD < 100 mm: 100% RT, see 9.22.2

Guided bend test method

  • Preparation of test specimen,
    o See Figure 4.8, 4.9, 4.10 or 4.14 (non-tubular)
    o See Figure 9.28 (Tubular)
  • T < 10 mm, 2 specimens of face- and root- bend test.
  • T > = 10 mm, 2 specimens of side bend test.
    image

RT procedure

  • Clause 4.22.3.1 (non-tubular)
  • Clause 9.22.2 (Tubular)
    o RT Test Procedure and Technique. Welded test pipe or tubing 4 in [100 mm] in diameter or larger shall be examined for a minimum of one-half of the weld perimeter selected to include a sample of all positions welded.

For example,

  • A test pipe or tube welded in the 5G, 6G, or 6GR position shall be radiographed from the top centerline to the bottom centerline on either side.
  • Welded test pipe or tubing less than 4 in [100 mm] in diameter shall require 100% RT.

Macroetch test

  • T-Y-K connection, Clause 9.20.1.

Acceptance Criteria

  • Guided bend test, Clause 4.9.3.3
  • RT acceptance criteria, Clause 6.12.2, except 6.12.2.2 shall not apply
  • Fillet weld break, Clause 4.22.4.1

Essential variables

Clause 4.19 and Table 4.12

Qualification form

  • Suggest form: AWS D1.1 Annex M or get free template here.
  • The welder and welding operator who passed WPS qualification, he also qualified the requirement in Clause 4.15. Read more range of qualification in 6GR position for pWPS, here.

Period of effectiveness

  • Within six months, Clause 4.2.3
  • Retest, Clause 4.24.1

Common questions

  • Qualification responsibility, see Clause 4.2.2.2.
  • Change F-Number are not allowed, see able 4.12 line 2.
  • Omission of backing is not allowed, see Table 4.12 line 6.
  • Thickness of test coupons are recommended at least 25,4 mm (plate) or OD > 100 mm, T > 10 mm (tubular) to maximum thickness range, see Table 4.11 (plate) and Table 9.14 (Tubular).
  • Test specimens are recommended DN 200 12.7 mm.
  • Third party should invite to endorse the documents, such ABS, DNV, LR, BV or other international society classification.

Free downloads form and standards

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No mention on fillet welds.

Clause 4.2.2.2 Qualification Responsibility.
Each manufacturer or Contractor shall be responsible for the qualification of welders, welding operators and tack welders, whether the qualification is conducted by the manufacturer, Contractor, or an independent testing agency.