Change in nominal filler metal diameter

Refer AWS D1.1 2020 - Table 6.5 Line (10): Change in nominal filler metal diameter

Any changes in diameter shall requalify welding procedure.

  • SMAW: increase 0.8 mm, eg. qualified on 3.2 mm, range of qualfication: max. 4.0 mm
  • SAW: any increase,
  • GMAW: any increase or decrease,
  • FCAW: any increase,
  • GTAW: any increase 1.6 mm or any decrease.
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