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Butt Weld Fittings - Carbon Steel A234 WPB- Domestic

  • Welding a fitting to the pipe means it is permanently leak-proof
  • The continuous metal structure formed between pipe and fitting adds strength to the system
  • Smooth inner surface and gradual directional changes reduce pressure losses and turbulence and minimize the action of corrosion and erosion
  • A welded system utilizes minimum space

The ends of all Butt Weld Fittings are beveled. The shape of the bevel depends on the actual wall thickness. These beveled ends are needed to be able to make a "Butt weld".
ASME B16.25 covers the preparation of butt welding ends of piping components to be joined into a piping system by welding. It includes requirements for welding bevels, for external and internal shaping of heavy-wall components, and for preparation of internal ends (including dimensions and dimensional tolerances). These weld edge preparation requirements are also incorporated into the ASME standards (e.g., B16.9, B16.5, B16.34).
Additional Fitting Information


  • A234 WPB - The standard specification for piping fittings of wrought carbon steel and alloy steel for moderate and high temperature.  (More Info)
  • SS304 - A common standard for stainless steel due to its malleability, high corrosive resistance weld-ability (More Info)
  • SS316 - A molybdenum stainless steel that provides excellent tensile, creep and stress-rupture strengths at elevated temperatures (More Info)

Size & Dimensions:

Size & Dimension table for Buttwled Fittings

Butt Weld Fittings - Carbon Steel A234 WPB- Domestic

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