ASTM A694 high-yield flanges (Grades F42 to F80) are engineered for high-pressure transmission systems requiring superior strength-to-weight ratios. In the 300LBS class, these flanges provide robust sealing for oil and gas pipelines. When specified for cryogenic use, the alloy undergoes advanced heat treatment to ensure notch toughness at sub-zero temperatures. This prevents brittle failure in cold climates, making them ideal for high-stress Arctic installations and high-pressure processing facilities.
Technical attributes
Standard: ASME B16.5
Material Grade: ASTM A694 F42 / F52 / F60 / F70 / F80
Material Category: High-Yield Carbon Steel
Flange Type: Weld Neck / Slip-On / Blind
Pressure Class: 300 LBS
Size Range: NPS 1/2 to NPS 60
Impact Test Temp: -46 Degrees Celsius (Cryogenic)
Impact Energy: Min 27 Joules Average
Yield Strength: 290 to 550 MPa (Grade Dependent)
Tensile Strength: 415 to 655 MPa
Carbon Content: Max 0.26 percent
Manganese Content: Max 1.60 percent
Manufacturing: Forged and Machined
Heat Treatment: Normalized or Quenched and Tempered
Hardness: Max 197 HBW
Facing Type: Raised Face (RF) or RTJ
Surface Finish: 125-250 AARH
Certification: EN 10204 3.1
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
