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Buttweld Elbows Specs

Buttweld Elbow Fittings Detailed

90° & 45° Buttweld Elbows

Our piping elbows are built using heavy hydraulic mandrels, ensuring uniform grain distribution at core stress points. Designed to assist pipelines when changing fluid paths under high-pressure friction, they are solution-annealed to prevent intergranular stress failures.

Long & Short Radius ASME B16.9 Standard

Technical Specifications

Parameter Standard Specification Details & Limits
Size Range 1/2" NB to 24" NB (seamless), 26" NB to 48" NB (welded/fabricated)
Type Radius 90 degree Long Radius (R=1.5D), Short Radius (R=1.0D), 45 degree Elbows
Thickness schedules Sch 5S, Sch 10S, Sch 40S, Sch 80S, Sch 160, Sch XXS
Material Grades WP304, WP304L, WP316, WP316L, WP321, WP310S, WP904L, Duplex
Rating Standards ASME B16.9, MSS SP-43, DIN 2605
Heat Treatment Full solution annealing heat treatment above 1050°C + quick water quench

Industrial Applications

  • Gas Processing: High integrity gas pipeline networks changing elevation/angles.
  • Desalination: High chloride piping lines carrying corrosive sea-water.
  • Pharmaceutical Gasses: Super-finished sanitary pipes changing layout.