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N08031 Stainless Steel vs. SAE-AISI S2 Steel

Both N08031 stainless steel and SAE-AISI S2 steel are iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is N08031 stainless steel and the bottom bar is SAE-AISI S2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
72
Tensile Strength: Ultimate (UTS), MPa 730
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
44
Thermal Expansion, µm/m-K 18
11

Otherwise Unclassified Properties

Base Metal Price, % relative 39
2.6
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 7.1
2.1
Embodied Energy, MJ/kg 96
30
Embodied Water, L/kg 240
49

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
24 to 69
Strength to Weight: Bending, points 22
22 to 44
Thermal Diffusivity, mm2/s 3.1
12
Thermal Shock Resistance, points 14
23 to 68

Alloy Composition

Carbon (C), % 0 to 0.015
0.4 to 0.55
Chromium (Cr), % 26 to 28
0
Copper (Cu), % 1.0 to 1.4
0 to 0.25
Iron (Fe), % 29 to 36.9
96 to 98.1
Manganese (Mn), % 0 to 2.0
0.3 to 0.5
Molybdenum (Mo), % 6.0 to 7.0
0.3 to 0.6
Nickel (Ni), % 30 to 32
0 to 0.3
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.3
0.9 to 1.2
Sulfur (S), % 0 to 0.010
0 to 0.030
Vanadium (V), % 0
0 to 0.5