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AISI 410S (S41008) Stainless Steel

AISI 410S stainless steel is a martensitic stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. 410S is the AISI designation for this material. S41008 is the UNS number.

It has a moderately low embodied energy among wrought martensitic stainless steels. In addition, it has the lowest tensile strength and a fairly high ductility.

The graph bars on the material properties cards below compare AISI 410S stainless steel to: wrought martensitic stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Brinell Hardness

160

Elastic (Young's, Tensile) Modulus

190 GPa 28 x 106 psi

Elongation at Break

25 %

Fatigue Strength

180 MPa 26 x 103 psi

Poisson's Ratio

0.28

Reduction in Area

50 %

Rockwell B Hardness

78

Shear Modulus

76 GPa 11 x 106 psi

Shear Strength

310 MPa 45 x 103 psi

Tensile Strength: Ultimate (UTS)

480 MPa 70 x 103 psi

Tensile Strength: Yield (Proof)

250 MPa 37 x 103 psi

Thermal Properties

Latent Heat of Fusion

270 J/g

Maximum Temperature: Corrosion

390 °C 730 °F

Maximum Temperature: Mechanical

740 °C 1370 °F

Melting Completion (Liquidus)

1440 °C 2630 °F

Melting Onset (Solidus)

1400 °C 2560 °F

Specific Heat Capacity

480 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

30 W/m-K 17 BTU/h-ft-°F

Thermal Expansion

11 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

2.9 % IACS

Electrical Conductivity: Equal Weight (Specific)

3.3 % IACS

Otherwise Unclassified Properties

Base Metal Price

7.0 % relative

Density

7.7 g/cm3 480 lb/ft3

Embodied Carbon

1.9 kg CO2/kg material

Embodied Energy

27 MJ/kg 12 x 103 BTU/lb

Embodied Water

100 L/kg 12 gal/lb

Common Calculations

PREN (Pitting Resistance)

13

Resilience: Ultimate (Unit Rupture Work)

100 MJ/m3

Resilience: Unit (Modulus of Resilience)

170 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

17 points

Strength to Weight: Bending

18 points

Thermal Diffusivity

8.1 mm2/s

Thermal Shock Resistance

17 points

Alloy Composition

Among wrought stainless steels, the composition of AISI 410S stainless steel is notable for containing comparatively high amounts of chromium (Cr) and manganese (Mn). Chromium is the defining alloying element of stainless steel. Higher chromium content imparts additional corrosion resistance. Manganese is used to improve ductility at elevated temperatures. It also permits a higher nitrogen content than would otherwise be possible.

Iron (Fe) 83.8 to 88.5
Chromium (Cr) 11.5 to 13.5
Manganese (Mn) 0 to 1.0
Silicon (Si) 0 to 1.0
Nickel (Ni) 0 to 0.6
Carbon (C) 0 to 0.080
Phosphorus (P) 0 to 0.040
Sulfur (S) 0 to 0.030

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

ASTM A473: Standard Specification for Stainless Steel Forgings

Metallic Materials: Physical, Mechanical, and Corrosion Properties, Philip A. Schweitzer, 2003

Creep-Resistant Steels, Fujio Abe et al. (editors), 2008

ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005

Advanced Materials in Automotive Engineering, Jason Rowe (editor), 2012

ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Corrosion of Stainless Steels, A. John Sedriks, 1996

ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994

Advances in Stainless Steels, Baldev Raj et al. (editors), 2010