Type of tests required

  • 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.

Essential variables

  • Clause 6.20 and Table 6.12.

Qualification form

  • Suggest form: AWS D1.1 Annex M.

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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