The ASTM A860 WPHY60 LR 90° Elbow is a high-strength wrought fitting designed for high-pressure oil and gas transmission. Matching API 5L X60 line pipe, it offers a minimum yield strength of 60,000 PSI. The Long Radius (LR) design ($1.5D$) minimizes turbulence and pressure drop. These elbows undergo rigorous Charpy V-notch testing to ensure fracture toughness in low-temperature environments, making them essential for critical cross-country pipeline infrastructure.
Technical Attributes: ASTM A860 WPHY60 LR 90° Elbow
Material Grade,ASTM A860 WPHY60 (High-Yield Carbon Steel)
Fitting Type,90 Degree Long Radius (LR) Elbow
Yield Strength,"≥415 MPa (60,000 PSI)"
Tensile Strength,"515–690 MPa (75,000–100,000 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 X60 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≤0.45% (For field weldability)
Manufacturing,Seamless or Welded (100% X-ray for welded)
Hardness,≤197 HBW
Testing Standard,"Hydrostatic, UT, MT, RT, Tensile"
Surface Finish,Black Bitumen / FBE Coating / Anti-rust Oil
Certification,EN 10204 3.1 / MTR
Traceability,Heat Number & Grade Hard Stamped
Applicable Service,High-Pressure Gas & Oil Transmission
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