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SAE-AISI M2 Steel vs. AWS ERNiCrMo-4

SAE-AISI M2 steel belongs to the iron alloys classification, while AWS ERNiCrMo-4 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M2 steel and the bottom bar is AWS ERNiCrMo-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
84
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
790

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1610
1590
Melting Onset (Solidus), °C 1570
1530
Specific Heat Capacity, J/kg-K 440
410
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
70
Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 8.8
13
Embodied Energy, MJ/kg 130
170
Embodied Water, L/kg 98
280

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 25 to 71
24
Strength to Weight: Bending, points 22 to 44
21
Thermal Shock Resistance, points 27 to 76
22

Alloy Composition


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Carbon (C), % 0.78 to 1.1
0 to 0.020
Chromium (Cr), % 3.8 to 4.5
14.5 to 16.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 78.5 to 83.4
4.0 to 7.0
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.5 to 5.5
15 to 17
Nickel (Ni), % 0 to 0.3
50 to 63.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.8
3.0 to 4.5
Vanadium (V), % 1.8 to 2.2
0 to 0.35
Residuals, % 0
0 to 0.5