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SAE-AISI M10 Steel vs. S20432 Stainless Steel

Both SAE-AISI M10 steel and S20432 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M10 steel and the bottom bar is S20432 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 740 to 2170
580

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1520
1410
Melting Onset (Solidus), °C 1470
1370
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 31
15
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 14
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 120
38
Embodied Water, L/kg 100
140

Common Calculations

PREN (Pitting Resistance) 31
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 76
21
Strength to Weight: Bending, points 23 to 47
20
Thermal Diffusivity, mm2/s 8.5
4.0
Thermal Shock Resistance, points 23 to 68
13

Alloy Composition

Carbon (C), % 0.84 to 1.1
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
17 to 18
Copper (Cu), % 0 to 0.25
2.0 to 3.0
Iron (Fe), % 82.3 to 85.6
66.7 to 74
Manganese (Mn), % 0.1 to 0.4
3.0 to 5.0
Molybdenum (Mo), % 7.8 to 8.5
0
Nickel (Ni), % 0 to 0.3
4.0 to 6.0
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 1.8 to 2.2
0