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ASTM A182 F9

Time:2022-11-28 Click:102

ASTM A182 – Forged or Rolled Alloy and Stainless Steel Pipe Flanges, 

Forged Fittings, and Valves and Parts for High Temperature Service


Grade: F9 


UNS number: K90941


Category: Low Alloy Steels


Chemical Requirements, %

C: ≤0.15

Mn: 0.30-0.60

P: ≤0.030

S: ≤0.030

Si: 0.50-1.00

Cr: 8.0-10.0

Mo: 0.90-1.10


Heat treatment:

1.Anneal: ≥955 °C, furnace cool.

2.Normalize(≥955 °C)+temper(≥675 °C)


Tensile Requirements:

Tensile Strength: ≥585MPa

Yield Strength: ≥380MPa

Elongation: ≥20

Reduction of Area: ≥40

Hardness(HB): 179-217


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