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F11 Class 2 & 3

Grade F11 Class 2 & 3 1.25% chromium, 0.5% molybdenum, Low Alloy Steel 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
F11 Class 2 & 3 0.10-02.0% 0.30-0.80% 0.040% max 0.040% max 0.50-1.00% 1.00-1.50% 0.44-0.65%

Physical Constants

Density0.285 lbs/in3
Density7.89 g/cm3


Annealing1650ºF furnace cool
Normalizing1650ºF air cool

Viking Forging Parameters

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

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