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SAE-AISI M10 Steel vs. S31655 Stainless Steel

Both SAE-AISI M10 steel and S31655 stainless steel are iron alloys. They have 74% 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 S31655 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
78
Tensile Strength: Ultimate (UTS), MPa 740 to 2170
710

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1520
1430
Melting Onset (Solidus), °C 1470
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 31
15
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 14
17
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 8.3
3.3
Embodied Energy, MJ/kg 120
46
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 31
27
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 76
25
Strength to Weight: Bending, points 23 to 47
23
Thermal Diffusivity, mm2/s 8.5
4.0
Thermal Shock Resistance, points 23 to 68
16

Alloy Composition

Carbon (C), % 0.84 to 1.1
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
19.5 to 21.5
Copper (Cu), % 0 to 0.25
0 to 1.0
Iron (Fe), % 82.3 to 85.6
63.2 to 71.9
Manganese (Mn), % 0.1 to 0.4
0 to 2.0
Molybdenum (Mo), % 7.8 to 8.5
0.5 to 1.5
Nickel (Ni), % 0 to 0.3
8.0 to 9.5
Nitrogen (N), % 0
0.14 to 0.25
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 0.015
Vanadium (V), % 1.8 to 2.2
0