410S Stainless Steel Alloy

UNS: S41008
EN-DIN: 1.4000

410S Stainless Steel Strip, Coil & Sheet

  • ASTM A240

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410S Stainless Steel Alloy Description:

410S Stainless Steel is a non-hardening modification of Type 410. A small aluminum addition minimizes austenite formation at high temperatures, thereby restricting the alloy’s ability to harden. The result is a soft, ductile condition when the material is rapidly cooled from above the critical temperature. This non-hardening characteristic also retards formation of hardening cracks when the steel is welded. The alloy is completely ferritic in the annealed condition.


410S Stainless Steel Alloy Uses & Applications:

  • Petroleum refining
  • Petrochemical processing
  • Thermal processing
  • Gate valves
  • Press plates
  • Heat exchangers
  • Ore processing and mining machinery

Nominal Composition


Physical Properties

At 70°FAt 20°C
Density0.280 lb./in³7.73 kg/cm³
Modulus of Elasticity (E)29.0 x 10³ ksi200 x 10³MPa
Coefficient of Expansion9.6 x 10⁻⁶ microinches/in.-°F (32-212°F)17.3 μm/m-°C (0-100°C)
Electrical Resistivity23.7 μ ohm.in60.0 μ ohm.cm
Thermal Conductivity15.6 Btu-in./ft.²hr.-°F (100°C)26.9 W/m-K (100°C)
Typical Room Temperature Mechanical Properties

Typical Mechanical Properties

Typical mechanical properties are based on AK source, ASTM A240.

ConditionTensile Strength Min (UTS)0.2% YS MinElongation% in 2” Min (50.8 mm)Hardness Rockwell
Annealed65 ksi (448 MPa)40 ksi (276 MPa)25%75 HRBW
Limitation of Liability and Disclaimer of Warranty:
  • The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only. It is not intended for engineering or design.
  • Applications may be discussed, however, Combined Metals Company, LLC, does not recommend or endorse any material for any particular end use or application.
  • The data included in this data sheet are typical values and may vary.
  • Combined Metals Company, LLC, makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.

In no event will Combined Metals Company, LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.

Additional Information on 410S

Alloy 410 stainless steel is a martensitic stainless steel grade routinely supplied in a hardened condition where high strength and moderate heat and corrosion resistance are required. 410S stainless steel is a low Carbon, non-hardening modification of Alloy 410 stainless.

Low Carbon plus a small amount of Titanium and/or Niobium minimize austenite formation at high temperatures restricting the ability for the alloy to harden.  This keeps 410S soft and ductile even when cooled from above at critical temperature.

The non-hardening property helps to prevent cracking when the alloy is exposed to high temperatures or when welded.

410S is completely ferritic in the annealed condition, which means it has a body-centered cubic crystal making it less ductile than austenitic steel. It is used mainly for household utensils and other applications that do not demand high anti-corrosion properties. 410S has adequate corrosion resistance, much like 410, and good oxidation resistance.

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