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SAE-AISI M1 Steel vs. S32654 Stainless Steel

Both SAE-AISI M1 steel and S32654 stainless steel are iron alloys. They have 54% 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 M1 steel and the bottom bar is S32654 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
82
Tensile Strength: Ultimate (UTS), MPa 730 to 2140
850

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1560
1450
Melting Onset (Solidus), °C 1510
1410
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 29
11
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 18
34
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 7.0
6.4
Embodied Energy, MJ/kg 99
87
Embodied Water, L/kg 98
220

Common Calculations

PREN (Pitting Resistance) 35
57
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 73
29
Strength to Weight: Bending, points 22 to 45
25
Thermal Diffusivity, mm2/s 8.0
2.9
Thermal Shock Resistance, points 23 to 66
19

Alloy Composition

Carbon (C), % 0.78 to 0.88
0 to 0.020
Chromium (Cr), % 3.5 to 4.0
24 to 25
Copper (Cu), % 0 to 0.25
0.3 to 0.6
Iron (Fe), % 81 to 84.8
38.3 to 45.3
Manganese (Mn), % 0.15 to 0.4
2.0 to 4.0
Molybdenum (Mo), % 8.2 to 9.2
7.0 to 8.0
Nickel (Ni), % 0 to 0.3
21 to 23
Nitrogen (N), % 0
0.45 to 0.55
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0