ASTM A 182 Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

Grade F48 (Austenitic Stainless Steels)

Chemical Requirements: Composition, %, max

C: 0.030

Mn:2.00

P: ≤0.045

S: ≤0.030

Si: 0.75

Cr: 17.0-20.0

Ni:13.5-17.5

Mo: 4.0-5.0

N: 0.10-0.20

Austenitizing/Solutioning Temperature, min: 1040 °C

Cooling Media: Liquid

Quenching Cool Below ℃ 260

Tensile Requirements

Tensile Strength, min.: 550MPa

Yield Strength, min.: 240MPa

Elongation in 2 in. or 50 mm (or 4D), min, %: 40

Reduction of Area, min, %: 40