Alloy Grade UNS: C12A – Martensitic Stainless Steel 

  • 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

Tensile, ksi

0

Tensile, MPa

0

Calculated PREn (Minimum)

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

Heat Treatment: Normalize And Temper