The ASME B16.11 A694 High-Yield Threaded Union is a specialized three-piece fitting for high-pressure transmission and cryogenic service. Forged in grades from F42 to F80, it offers an exceptional strength-to-weight ratio for arctic pipelines. Featuring BSP or BSPT threads and a metal-to-metal ground joint, it allows for weld-free disassembly in hazardous zones. Rated for 2000 PSI, it is the preferred choice for remote gas manifolds requiring high yield strength and low-temperature toughness.
Technical Attributes: A694 2000# Threaded Union
Standard,ASME B16.11 / MSS SP-83
Material Grades,"ASTM A694 F42, F52, F60, F65, F70, F80"
Fitting Type,Threaded Union (3-Piece Design)
Pressure Class,2000 LBS (Class 2000)
Size Range,1/8" to 3" (NPS)
Thread Type (BSPT),BS 21 / ISO 7-1 (Tapered)
Thread Type (BSP),BS 2779 / ISO 228-1 (Parallel)
Seal Design,Ground Joint (Metal-to-Metal Seat)
Yield Strength (F65),≥450 MPa (65 ksi)
Yield Strength (F80),≥550 MPa (80 ksi)
Tensile Strength,≥415–690 MPa (Grade dependent)
Service Temp,Suitable for Cryogenic/Arctic Service
Manufacturing,"Forged, Heat Treated, Fully Machined"
Heat Treatment,Normalizing / Quenching & Tempering
Testing Standard,"UT, MT, Hardness, Thread Gauging"
Surface Finish,Anti-rust Oil / Galvanized / Epoxy
Hardness,≤197–235 HBW
Certification,EN 10204 3.1 / MTR
Primary Use,High-Yield Gas & Arctic Manifold Service
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