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SAE-AISI M36 Steel vs. S32950 Stainless Steel

Both SAE-AISI M36 steel and S32950 stainless steel are iron alloys. They have 72% 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 M36 steel and the bottom bar is S32950 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 810 to 2190
780

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1600
1430
Melting Onset (Solidus), °C 1550
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 19
16
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 38
17
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 9.5
3.4
Embodied Energy, MJ/kg 140
47
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 31
37
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 27 to 72
28
Strength to Weight: Bending, points 23 to 44
24
Thermal Diffusivity, mm2/s 5.1
4.3
Thermal Shock Resistance, points 25 to 68
21

Alloy Composition

Carbon (C), % 0.8 to 0.9
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
26 to 29
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.1 to 75.5
60.3 to 69.4
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 4.6 to 5.5
1.0 to 2.5
Nickel (Ni), % 0 to 0.3
3.5 to 5.2
Nitrogen (N), % 0
0.15 to 0.35
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 5.5 to 6.5
0
Vanadium (V), % 1.8 to 2.3
0