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What’s The P Number of Inconel 600

Inconel Alloy 600 is designated as UNS N06600 with nominal composition of 72Ni-15Cr-8Fe. According to ASME Boiler and Pressure Vessel Code(BPVC) Section IX: Welding and Brazing Qualifications, the welding P-Number of Inconel 600 is 43 and the brazing P-Number of Inconel 600 is 111. Meanwhile, it’s ISO 15608 group number is 43.

Inconel 600 piping welding

The welding of Inconel 600 pipes with fittings and flanges.

According to QW/QB-422, the Inconel 600 base metals can be furnished as the following products:

  • ASME SB-163 UNS N06600: seamless tubes;
  • ASME SB-166 UNS N06600: rod, bar and wire;
  • ASME SB-167 UNS N06600: seamless pipes and tubes;
  • ASME SB-168 UNS N06600: plate, sheet, strip;
  • ASME SB-366 UNS N06600: fittings;
  • ASME SB-516 UNS N06600: welded tube;
  • ASME SB-517 UNS N06600: welded pipe;
  • ASME SB-564 UNS N06600: forgings.


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    Hebei Metals Industrial Limited
    (Shijiazhuang Metalsin Pipeline Tech Co., Ltd)
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