CA15 Stainless Steel Properties, Composition & Equivalent

CA15 ASTM A743 A487 A217         Grade(UNS): J91150       Alloy Family:  Martensitic stainless steel       Equivalent: 410 stainless steel

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What is CA15 Stainless Steel?

CA15 stainless steel is a kind of martensitic stainless steel with good corrosion resistance and machinability.

It is is often used to make blades, tableware and valves. Compared with other stainless steel materials, it has higher strength and better safety performance, so it is widely used in some other industries.

It is equivalent to 410 stainless steel


CA15 Chemical Composition

C Mn Si P S Cr Ni
Max 0.08 1.5 2.00 0.04 0.04 21.0 11.0
Min 18.0 8.0

Heat treatment

(1) Heat to 1750°F [955°C] minimum, air cool and temper at 1100°F [595°C] minimum, or
(2) Anneal at 1450°F [790°C] minimum

Mechanical Properties

Reduction of Area, min / %30 %
Yield Strength, minKsi – 65, MPa – 450
Tensile Strength, minKsi – 90, MPa – 620
Elongation[50mm], min / %18 %


1) High strength

2) Excellent machinability

3) Hardening occurs after heat treatment

4) It has magnetism

5) Not suitable for harsh corrosive environment.


  • Aerospace equipment
  • Bearing
  • Food processing equipment
  • Conveyor Roller
  • Tableware
  • Medical equipment
  • Turbine engine parts
  • Common blade

Physical Properties

density (g/cm)magneticspecific heat 25℃(J/kg.℃)Thermal conductivity 100℃(W/m.℃)Thermal expansion rate 20~100℃(10/℃)

CA15 Equivalent

410 stainless steel

410 stainless steel is produced according to the American ASTM standard, which is equivalent to China’s 1Cr13 stainless steel, ASTM S41000. Carbon 0.15%, chromium 13%. Carbon 0.15%, chromium 13%

410 stainless steel: with good corrosion resistance, machinability, general-purpose blade, valve. Heat treatment of 410 stainless steel: solution treatment (℃) 800-900 slow cooling or 750 fast cooling.

Compared with 410 stainless steel, 316 stainless steel has stronger corrosion resistance and weldability, and is used more widely. But it is also more expensive. 316 stainless steel in rust and corrosion resistance is far better than 410 stainless steel, but in some special occasions, 316 stainless steel can not replace 410 stainless steel

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