UNS: S41008
EN-DIN: 1.4510

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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.

Nominal Composition

Physical Properties
At 70°F (At 20°C)

Density
0.280 lb./in³ / (7.73 kg/m³)

Modulus of Elasticity (E)
29.0 x 10³ ksi / (200 x 10³MPa)

Coefficient of Expansion
9.6 x 10-6 microinches/in.-°F (32-212°F) / (17.3 μm/m-°C) (0-100°C)

Electrical Resistivity
23.7 μ ohm.in / (60.0 μ ohm.cm)

Thermal Conductivity
15.6 Btu-in./ft.²hr.-°F (100°C)/ (26.9 W/m-K) (100°C)

Applicable Specifications

ASTM A240

Typical Mechanical Properties – Typical Room Temperature Mechanical Properties

Typical mechanical properties are based on AK source, ASTM A240

Condition
Annealed

Tensile Strength (UTS)
65 ksi (448 MPa)

0.2% YS
40 ksi (276 MPa)

Elongation% in 2” (50.8 mm)
25%

Hardness Rockwell
75 HRBW