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C12A

C12A Steel Properties & Composition

overview

Martensitic chromium-molybdenum steel, suitable for pressure-containing parts

Typical Applications

Pump and valve, impellers, oil and natural gas refining, power generation

Limitations (maximum pour and part weight)

Casting section thicknesses from 3/16 inch and up

General Information

Cast Alloy Designation: C12A
Similar designation: -
Alloy Family: Carbon / Low Alloy Steel
UNS #: J84090
ASTM Standard(s): A217
Wrought: ---
Weldability: Good
Castability: Good
Machinability rating: Good

Chemical Composition

C: 0.08-0.6
Mn: 0.3-0.12
Cr: 8-9.5
Mo: 0.85-1.05
Ni: 0.4-0.5
Fe: Bal
Cu: 0-0.5

Mechanical Properties

Tensile Strength (ksi): 85-110
Tensile Strength (MPa): 586-758
Yield Strength (ksi): 60
Elongation (%): 18
Hardness (Brinell): 0.00-220
Note: - -

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