Seamless Buttwelding 180 Degree Return Bends

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Seamless Buttwelding 180 Degree Return Bends Specifications

Type Butt weld (BW)
Standards ASME / ANSI – B 16.9 ASTM A403 – ASME SA403 – ‘Standard Specification for Wrought Austenitic   Stainless Steel Piping Fittings’ API 590-605 ASME B16.9 – ‘Factory-Made Wrought Buttwelding Fittings’ ASME B16.25 – ‘Buttwelding Ends’ ASME B16.28 – ‘Wrought Steel Buttwelding Long Radius Elbows and   Returns’ MSS SP-43 – ‘Wrought and Fabricated Butt-Welding Fittings for Low   Pressure, Corrosion Resistant Applications’
Dimension ANSI B16.9, ANSI B16.28, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS   B2312, JIS B2313
Thickness Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80,   S100, S120, S140, S160, XXS and etc.
Schedule Sch 5 TO Sch XXS.
Size 1/2” TO 36”, (Seamless up to 24”), (Welded 8” TO 36”)

Seamless Buttwelding 180 Degree Return Bends Materials and Grade

Stainless Steel ANSI/ASME B16.9 180 Degree Return Bends:

  • ASTM A403 WP316/316L
  • ASTM A403 WP304/304L
  • ASTM A182 F316L, 304L
  • DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404

Carbon Steel ANSI/ASME B16.9 180 Degree Return Bends:

  • ASTM A234 Gr. WPB
  • ASTM A420 Gr. WPL6
  • ASTM A105
  • ASTM A350 Gr. LF2

Nickel Alloy ANSI/ASME B16.9 180 Degree Return Bends:

  • Monel 400 & 500
  • Inconel 600 & 625
  • Incolloy 800, 825
  • Hastelloy C22, C276
  • Hastelloy
  • Nickel
  • Monel
  • Inconel
  • Alloy20
  • Copper Nickel
  • Cupro-Nickel 90/10
  • Cupro-Nickel 70/30

Alloy Steel ANSI/ASME B16.9 180 Degree Return Bends:

  • ASTM a234 wp1 / wp5 / wp9 / wp11 / wp22 / wp91