The ASTM A350 LF2 Socket Weld Elbow is the industry standard for low-temperature and cryogenic service. Forged from fine-grain carbon-alloy steel, it is specifically heat-treated to ensure exceptional notch toughness down to -46℃ (-50℃). The 3000# rating provides the structural integrity needed for high-pressure gas plants, refrigeration units, and arctic pipelines. Its socket weld design ensures a leak-proof, permanent joint that resists brittle fracture and thermal shock in extreme environments.
Technical Attributes: A350 LF2 3000# SW Elbow
Standard,ASME B16.11 / ASTM A350
Material Grade,ASTM A350 LF2 Class 1 (Low Temp)
Fitting Type,90° or 45° Socket Weld Elbow
Pressure Class,3000 LBS
Size Range,1/8" to 4" (NPS)
Manufacturing,"Forged, Fine-Grain Practice, Machined"
End Connection,Socket Weld (SW)
Service Temp,Down to −46℃ (−50∘F)
Tensile Strength,485–655 MPa (70–95 ksi)
Yield Strength,≥250 MPa (36 ksi)
Carbon Content,≤0.30%
Manganese Content,0.60%–1.35%
Impact Energy,≥20 J (Charpy V-Notch at −46℃)
Heat Treatment,Normalizing or Quenching & Tempering
Hardness,≤197 HBW
Testing Standard,"Charpy Impact, UT, MT, Hardness"
Surface Finish,Anti-rust Oil / Black Phosphated
Certification,EN 10204 3.1 / MTR
Primary Use,"LPG, LNG, and Arctic Gas Transmission"
Contact: Jorge Yang
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E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
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