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UNS K90941 Grade F9 9% Chromium. ASTM-A182 Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings and Valves and Parts for High Temperature Service. This specification covers forged low alloy and stainless steel piping components for use in pressure systems.


Element C Mn P S Si Cr Mo
F9 0.15% max 0.30-0.60% 0.030% 0.030% 0.50-1.00% 8.0-10.0% 0.90-1.10%

Physical Constants

No info about Physical Constants currently available for this material.


Annealing1750ºF funace cool
Normalizing1750ºF air cool

Viking Forging Parameters

No info on Viking Forging Parameters currently available for this material.

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