Alloy Steel Low Temp AS A 350 Lf2 Flanges

Alloy Steel Low Temp. AS A 350 Lf2 Flanges is the standard specification for carbon steel and low alloy steel forged flanges and flanged fittings for low temperature services.

Common use grade is Alloy Steel Low Temp. AS A 350 Lf2 Flanges Class 1, corresponding material for piping in ASTM A333 Grade 6 and pipe fittings in ASTM A420 WPL6. With yield strength minimum 240 Mpa, and tensile strength in 480 Mpa to 655 Mpa, impact test temperature at -45℃.

Our Supply Range

• Grades: ASTM A350/ ASME SA350 Grade LF2, LF1, LF3, LF5, LF6, LF9, LF787, Class 1, 2, 3
• Outer Diameters: 1/2” to 24” in ASME B16.5, up to 60” in ASME B16.47
• Wall Thickness Schedule: SCH 10, SCH 40, SCH 160 comply with ASME B16.9
• Pressure Class: Class 150, 300, 600, 900, 1500, 2500
• Manufacturing Standards: ASME B16.5, ASME B16.47 A, B

Standards Scope of Alloy Steel Low Temp. AS A 350 Lf2 Flanges .

Alloy Steel Low Temp. AS A 350 Lf2 Flanges covers several grades of carbon and low-alloy steel forged or ring-rolled flanges, forged fittings and valves intended primarily for low-temperature service and requiring notch toughness testing. They are made to specified dimensions, or to dimensional standards, such as the ASME and API Specifications referenced in Section 2. Although this specification covers some piping components machined from rolled bar and seamless tubular materials, it does not cover raw material produced in these product forms.

Product furnished in ASTM A350/ ASME SA350 shall conform to the requirements of Specification A961/A961M, including any supplementary requirements that are indicated in the purchase order. Failure to comply with A961/A961M will be considered nonconformance with A350. And in case of conflict between Alloy Steel Low Temp. AS A 350 Lf2 Flanges and A961/A961M, this specification shall prevail.