ASTM A182 F51

ASTM A182 – Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

Grade: F51  Ferritic-Austenitic Stainless Steel

Chemical Requirements  max,  %

ElementsF51 (S31803)
Carbon0.030
Manganese2.00
Phosphorus0.030
Sulfur0.020
Silicon1.00
Nickel4.5-6.5
Chromium21.0-23.0
Molybdenum2.5-3.5
Nitrogen0.08-0.20

 

Tensile and Hardness Requirements

Grade SymbolF51 (S31803)
Tensile Strength,min, ksi [Mpa]90[620]
Yield Strength, min,ksi [MPa]65[450]
Elongation in 2 in.[50 mm] or 4D,min, %25
Reduction of Area, min, %45
Brinell HardnessNumber