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EN 1.4031 Stainless Steel vs. S42010 Stainless Steel

Both EN 1.4031 stainless steel and S42010 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4031 stainless steel and the bottom bar is S42010 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 13
18
Fatigue Strength, MPa 220 to 400
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 400 to 540
370
Tensile Strength: Ultimate (UTS), MPa 670 to 900
590
Tensile Strength: Yield (Proof), MPa 390 to 730
350

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 770
800
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
29
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
8.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.9
2.2
Embodied Energy, MJ/kg 27
30
Embodied Water, L/kg 100
110

Common Calculations

PREN (Pitting Resistance) 14
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
95
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 32
21
Strength to Weight: Bending, points 22 to 27
20
Thermal Diffusivity, mm2/s 8.1
7.9
Thermal Shock Resistance, points 23 to 32
21

Alloy Composition

Carbon (C), % 0.36 to 0.42
0.15 to 0.3
Chromium (Cr), % 12.5 to 14.5
13.5 to 15
Iron (Fe), % 83 to 87.1
80.9 to 85.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.85
Nickel (Ni), % 0
0.35 to 0.85
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030