The ASTM A860 WPHY52 LR 90° Elbow is a high-yield wrought fitting engineered for high-pressure gas and oil transmission lines. Designed to match API 5L X52 line pipe, it offers a minimum yield strength of 52,000 PSI. The Long Radius (LR) design ($1.5D$) ensures superior flow efficiency and minimal pressure drop. These elbows undergo rigorous Charpy V-notch testing, ensuring exceptional fracture toughness and reliability in demanding environments like cross-country pipelines.
Technical Attributes: ASTM A860 WPHY52 LR 90° Elbow
Material Grade,ASTM A860 WPHY52 (High-Yield Carbon Steel)
Fitting Type,90 Degree Long Radius (LR) Elbow
Yield Strength,"≥360 MPa (52,000 PSI)"
Tensile Strength,"455–620 MPa (66,000–90,000 PSI)"
Center-to-End Dim,1.5× Nominal Pipe Size (1.5D)
Design Standard,MSS SP-75 / ASME B16.9
End Connection,Butt Welding (BW)
End Preparation,Beveled Ends per ASME B16.25
Size Range,14" to 60" (Typically Large Diameter)
Wall Thickness,"Matches API 5L X52 Pipe (SCH 40, 80, STD, XS)"
Impact Testing,Charpy V-Notch (27J at −46∘C / −50∘F)
Heat Treatment,"Normalized, Quenched, and Tempered"
Carbon Equivalent,CE≤0.43% (For field weldability)
Manufacturing,Seamless or Welded (100% X-ray for welded)
Hardness,≤197 HBW
Testing Standard,"Hydrostatic, UT, MT, RT, Tensile"
Surface Treatment,Black Bitumen / FBE Coating / Anti-rust Oil
Certification,EN 10204 3.1 / MTR
Traceability,Heat Number & Grade Hard Stamped
Applicable Service,High-Pressure Oil & Gas Transmission
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