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

Grade F904L (Austenitic Stainless Steels)

Chemical Requirements: Composition, %, max

C: 0.020

Mn:2.00

P: ≤0.040

S: ≤0.030

Si: 1.00

Cr: 19.0-23.0

Ni:23.0-28.0

Mo: 4.0-5.0

Cu:1.00-2.00

N: 0.10

Austenitizing/Solutioning Temperature: 1040 °C – 1150℃

Cooling Media: Liquid

Quenching Cool Below ℃ 260

Tensile Requirements

Tensile Strength, min.: 495MPa

Yield Strength, min.: 210MPa

Elongation in 2 in. or 50 mm (or 4D), min, %: 35