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SAE-AISI M2 Steel vs. S28200 Stainless Steel

Both SAE-AISI M2 steel and S28200 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 20 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 M2 steel and the bottom bar is S28200 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 77
77
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
870

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1610
1380
Melting Onset (Solidus), °C 1570
1330
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 10
18

Otherwise Unclassified Properties

Base Metal Price, % relative 24
12
Density, g/cm3 8.4
7.6
Embodied Carbon, kg CO2/kg material 8.8
2.8
Embodied Energy, MJ/kg 130
41
Embodied Water, L/kg 98
160

Common Calculations

PREN (Pitting Resistance) 31
29
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 25 to 71
32
Strength to Weight: Bending, points 22 to 44
27
Thermal Shock Resistance, points 27 to 76
17

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.15
Chromium (Cr), % 3.8 to 4.5
17 to 19
Copper (Cu), % 0 to 0.25
0.75 to 1.3
Iron (Fe), % 78.5 to 83.4
57.7 to 64.1
Manganese (Mn), % 0.15 to 0.4
17 to 19
Molybdenum (Mo), % 4.5 to 5.5
0.75 to 1.3
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0.4 to 0.6
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
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0