A217 C12

Alloy Steels

Chemical Composition

Carbon:
0.20% Max
Manganese:
0.35 - 0.65%
Silicon:
1.00% Max
Phosphorus:
0.035% Max
Sulfur:
0.035% Max
Chromium:
8.00 - 10.00%
Nickel:
0.50% Max
Molybdenum:
0.90 - 1.20%
Nitrogen:
Nitrogen + Carbon:
Vanadium:
0.06% Max
Tungsten:
0.10% Max
Aluminum:
Titanium:
Copper:
0.50% Max
Columbium (Niobium):
0.03% Max
Barium:
Boron:
Zirconium:
Cerium + Lanthanum:
Iron:
Residual Elements:
1.00% Max

Physical Properties

Tensile Strength:
90 - 115 ksi
Yield Strength:
60 ksi Min
Elongation at 2 in.:
18% Min
Reduction of Area:
35% Min