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UNS S42010 Stainless Steel

S42010 stainless steel is a martensitic stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. It has a fairly low tensile strength among the wrought martensitic stainless steels in the database.

The graph bars on the material properties cards below compare S42010 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

Elastic (Young's, Tensile) Modulus

200 GPa 28 x 106 psi

Elongation at Break

18 %

Fatigue Strength

220 MPa 32 x 103 psi

Poisson's Ratio

0.28

Shear Modulus

76 GPa 11 x 106 psi

Shear Strength

370 MPa 53 x 103 psi

Tensile Strength: Ultimate (UTS)

590 MPa 86 x 103 psi

Tensile Strength: Yield (Proof)

350 MPa 51 x 103 psi

Thermal Properties

Latent Heat of Fusion

280 J/g

Maximum Temperature: Corrosion

390 °C 740 °F

Maximum Temperature: Mechanical

800 °C 1470 °F

Melting Completion (Liquidus)

1440 °C 2630 °F

Melting Onset (Solidus)

1400 °C 2550 °F

Specific Heat Capacity

480 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

29 W/m-K 17 BTU/h-ft-°F

Thermal Expansion

10 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

2.7 % IACS

Electrical Conductivity: Equal Weight (Specific)

3.2 % IACS

Otherwise Unclassified Properties

Base Metal Price

8.5 % relative

Density

7.7 g/cm3 480 lb/ft3

Embodied Carbon

2.2 kg CO2/kg material

Embodied Energy

30 MJ/kg 13 x 103 BTU/lb

Embodied Water

110 L/kg 13 gal/lb

Common Calculations

PREN (Pitting Resistance)

16

Resilience: Ultimate (Unit Rupture Work)

95 MJ/m3

Resilience: Unit (Modulus of Resilience)

310 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

21 points

Strength to Weight: Bending

20 points

Thermal Diffusivity

7.9 mm2/s

Thermal Shock Resistance

21 points

Alloy Composition

Among wrought stainless steels, the composition of S42010 stainless steel is notable for containing comparatively high amounts of chromium (Cr) and molybdenum (Mo). Chromium is the defining alloying element of stainless steel. Higher chromium content imparts additional corrosion resistance. Molybdenum is used to facilitate tempering. In addition, it offers modest bonuses to a wide range of material properties.

Iron (Fe) 80.9 to 85.6
Chromium (Cr) 13.5 to 15
Molybdenum (Mo) 0.4 to 0.85
Nickel (Ni) 0.35 to 0.85
Manganese (Mn) 0 to 1.0
Silicon (Si) 0 to 1.0
Carbon (C) 0.15 to 0.3
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 A493: Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

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

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