Butt weld pipe fittings

• ASTM A234/ASME SA234M Standard Specification
• Welding Bevel acc.to ASME / ANSI B16.9, ASME B16.28
• Fittings applications and markets
• Carbon steel pipe fittings production process
• Manufacturing standards are governed under ANSI/ASME B 16.9. Butt-Weld Fittings are available in variety of kinds such as tees, caps, elbows, reducers and outlets.

  Benefits of Butt Weld Pipe Fittings

  The benefit to using a butt weld fitting is that it doesn’t leak. Because the butt weld is welded directly to pipe and not simply bolted together, it is not only much stronger than a typical fitting, but it allows for better flow through the system with less resistance to friction. Welded fittings also allows for better layout designs through key features such as being more compact and greater in strength.
  • Welded connection offers a more robust connection
  • Continuous metal structure adds to the strength of the piping system
  • Buttweld fittings with matching pipe schedules, offers seamless flow inside the pipe. A full penetration weld and properly fitted LR 90 Elbow, Reducer, Concentric reducer etc. offers gradual transition via welded pipe fitting.
  • Option of various turn radius using Short Radius (SR), Long Radius (LR) or 3R Elbows
  • Cost effective compared to their expensive threaded or socket weld counter parts.
  • Stainless Steel Welded Fittings are also available in SCH 10, allowing a more thinner wall option.
  • Stainless Steel Butt Weld Fittings are more common in SCH 10 and SCH 40 configuration.
  All butt weld fittings have beveled ends as per ASME B16.25 standard. This helps create full penetration weld without any extra preparation needed for the butt weld fitting. Butt weld pipe fittings are most commonly available in carbon steel, stainless steel, nickel alloy, aluminum and high yield material. High yield butt weld carbon steel pipe fittings are available in A234-WPB, A234-WPC, A420-WPL6, Y-52, Y-60, Y-65, Y-70. All WPL6 pipe fittings are annealed and are NACE MR0157 and NACE MR0103 compatible.

  Materials & Specifications

  Material	Grade
  Carbon Steel	WPB, WPC, WPL6
  Chrome Moly	WP5, WP9, WP11, WP12, WP22
  Stainless Steel	304/304L, 316/316L, 304H, 316H, 309, 310S, 317L, 321/321H, 347/347H, 904L, DUPLEX 2205 / SUPER DUPLEX 2507
  High Yield Carbon Steel	WPHY42, WPHY52, WPHY65
  Nickel Alloys	Alloy 20, 200, 201, 400, 600, 625, 800H/HT, 825, 254SMO, AL6XN, C276, C22, B3, HAST-X

  • Standard Grades: Carbon, Stainless, Chrome Moly, High Yield, Low Temperature, Aluminum
  • Types: Elbows, Tees, Reducers, Caps, Stub Ends, Crosses, Laterals, Olets, Return Bends
  • Sizes: Standard 1/2" to 48" (special order larger O.D. fittings)
  • Wall Sizes: Schedule 20 thru XXH, and Special Wall Sizes
  • Specialty Items: 3D & 5D Bends, Galvanizing, 100% X-ray Testing
  Forged Steel buttweld fittings are manufactured in accordance with ANSI / ASME B16.9.

  Manufacturing Standards of Welded Fittings

  Standard	Grade
  ASME:	ANSI B16.9, ANSI B16.28, MSS-SP-43
  DIN:	DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
  EN:	EN10253-1, EN10253-2
  ASTM A403 – ASME SA403	Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
  ASME B16.9	Factory-Made Wrought Fittings Buttwelding
  ASME B16.25	Buttwelding Ends
  ASME B16.28	Wrought Steel Short Radius Elbows and Buttwelding Returns
  MSS SP-43	Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications