Overview
Alloy Grade UNS C12A, also known as J84090 steel, is a martensitic stainless steel containing up to 9.5% chromium. It offers good corrosion resistance and performs well in high-temperature environments. This combination of strength and durability makes C12A a versatile choice for various industrial applications where heat resistance and protection against corrosion are essential.
Typical Uses
Abrasive environments and cutting tools.
MetalTek Grade
MTEK 221-01 / 223-01
Poured At:
Carondelet Division, Sandusky International Division, Wisconsin Centrifugal Division, Wisconsin Investcast Division
Similar Specifications
Cast UNS: J84090
Wrought UNS: K91560
Wrought Grade: P91
Cast Grade: C12A
Cast ASTM: A217
Typical Chemical Composition (% by wt.)
Aluminum: n/a
Carbon: 0.08-0.12
Chromium: 8.0-9.5
Manganese: 0.30-0.60
Iron: n/a
Copper: n/a
Nickel: 0.4
Lead: n/a
Tin: n/a
Silicon: 0.20-0.50
Zinc: n/a
Other: Mo 0.85-1.05; Nb 0.06 -0.10; N 0.03-0.07; Al 0.04 MAX; V 0.18-0.25
Minimum Mechanical Properties
Heat Treatment: Normalize And Temper