The ASTM A694 Forged Alloy Steel Socket Weld Elbow is a high-yield fitting designed for demanding transmission systems, including cryogenic and high-pressure oil and gas pipelines. Available in grades from F42 to F80, these fittings provide superior strength-to-weight ratios and excellent notch toughness at low temperatures. Rated for 2000# and 3000#, they offer a secure, leak-proof socket connection. Their forged structure ensures mechanical integrity under extreme environmental stress and internal pressure surges.
Technical Attributes: A694 High-Yield Forged Elbow
Standard,ASME B16.11 / ASTM A694
Material Grades,"F42, F52, F60, F65, F70, F80"
Fitting Type,90° or 45° Socket Weld Elbow
Pressure Class,"2000 LBS, 3000 LBS"
Size Range,1/8" to 4" (NPS)
Manufacturing,"Forged, Heat Treated, Fully Machined"
End Connection,Socket Weld (SW)
Yield Strength (F42),≥290 MPa (42 ksi)
Yield Strength (F65),≥450 MPa (65 ksi)
Yield Strength (F80),≥550 MPa (80 ksi)
Tensile Strength,≥415–690 MPa (Grade dependent)
Carbon Equivalent,Controlled for Weldability (CE ≤0.42%)
Impact Testing,Charpy V-Notch (for Cryogenic/Low-Temp)
Heat Treatment,Normalizing / Quenching & Tempering
Testing Standard,"UT, MT, Hardness, PMI, Impact Test"
Surface Finish,Anti-rust Oil / Epoxy Coated / Galvanized
Hardness,≤197–235 HBW
Certification,EN 10204 3.1 / MTR
Primary Use,High-Pressure Transmission / Arctic Pipelines
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