Alloy Grade UNS: CA15 – “400 series” Alloy

  • Overview

    CA15 is a "400 series" material that is a hardenable stainless alloy with enough chromium present to make it resistant to rusting and mildly corrosive environments. A wide range of hardness is obtainable through various tempering treatments. It’s readily machinable and weldable but should be annealed or stress relieved since this alloy is air-hardenable. This metal alloy is also known as MTEK 410.

  • Typical Uses

    Bearings, bushings, chemical and food processing equipment, conveyor rollers, cutlery, impellers, medical devices, pump and valve components, turbine engine parts, shaft sleeves, liners, and aircraft parts.

  • MetalTek Grade

    MTEK 410

Similar Specifications

Cast UNS: J91150

Wrought UNS: S41000

Wrought Grade: 410

Cast Grade: CA15

Cast ASTM: A743, A487, A217

Military/AMS: AMS 5351

* AMS specifying sand casting.

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.15

Chromium: 11.5-14.0

Manganese: 1

Iron: n/a

Copper: n/a

Nickel: 1.00 MAX

Lead: n/a

Tin: n/a

Silicon: 1.5

Zinc: n/a

Minimum Mechanical Properties

Tensile, ksi


Tensile, MPa


Yield, ksi


Yield, MPa




Heat Treatment: Anneal, Harden And Temper