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SAE-AISI M3 Class 1 Steel vs. S32654 Stainless Steel

Both SAE-AISI M3 class 1 steel and S32654 stainless steel are iron alloys. They have 52% 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 M3 class 1 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 770 to 2150
850

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1570
1410
Specific Heat Capacity, J/kg-K 440
460
Thermal Conductivity, W/m-K 26
11
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 25
34
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 10
6.4
Embodied Energy, MJ/kg 150
87
Embodied Water, L/kg 100
220

Common Calculations

PREN (Pitting Resistance) 33
57
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 72
29
Strength to Weight: Bending, points 22 to 44
25
Thermal Diffusivity, mm2/s 7.2
2.9
Thermal Shock Resistance, points 24 to 67
19

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.020
Chromium (Cr), % 3.8 to 4.5
24 to 25
Copper (Cu), % 0 to 0.25
0.3 to 0.6
Iron (Fe), % 76.9 to 82.9
38.3 to 45.3
Manganese (Mn), % 0.15 to 0.4
2.0 to 4.0
Molybdenum (Mo), % 4.8 to 6.5
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 0.45
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0