ASTM A350 LF2 Class 1 is the definitive low-temperature carbon steel for cryogenic sealing applications. This 150LBS Blind flange is engineered to provide a secure, leak-proof termination for piping systems in Arctic climates or LNG facilities. Its specialized heat treatment ensures the material remains ductile and avoids brittle fracture at temperatures as low as -46°C. While appearing identical to standard A105 blinds, its superior notch toughness makes it the safe choice for volatile, low-temperature media.
Technical attributes
Standard: ASME B16.5
Material Grade: ASTM A350 LF2 Class 1
Material Category: Low-Temp Carbon Steel
Flange Type: Blind (BLRF)
Pressure Class: 150 LBS
Size Range: NPS 1/2 to NPS 24
Impact Test Temp: -46 Degrees Celsius
Impact Energy: Min 20 Joules Average
Heat Treatment: Normalized or Quenched
Manufacturing: Forged and Machined
Facing Type: Raised Face (RF)
Surface Finish: 125-250 AARH (Serrated)
Carbon Content: Max 0.30 percent
Manganese Content: 0.60 to 1.35 percent
Yield Strength: Min 250 MPa
Tensile Strength: 485 to 655 MPa
Hardness: Max 197 HBW
Certification: EN 10204 3.1 with Impact
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
