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SAE-AISI M2 Steel vs. AWS ERNiFeCr-2

SAE-AISI M2 steel belongs to the iron alloys classification, while AWS ERNiFeCr-2 belongs to the nickel alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 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 ERNiFeCr-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
1300

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1570
1410
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 22
12
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
75
Density, g/cm3 8.4
8.3
Embodied Carbon, kg CO2/kg material 8.8
13
Embodied Energy, MJ/kg 130
190
Embodied Water, L/kg 98
250

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 25 to 71
43
Strength to Weight: Bending, points 22 to 44
32
Thermal Diffusivity, mm2/s 5.9
3.2
Thermal Shock Resistance, points 27 to 76
38

Alloy Composition


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Aluminum (Al), % 0
0.2 to 0.8
Boron (B), % 0
0 to 0.0030
Carbon (C), % 0.78 to 1.1
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
17 to 21
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 78.5 to 83.4
11.6 to 24.6
Manganese (Mn), % 0.15 to 0.4
0 to 0.35
Molybdenum (Mo), % 4.5 to 5.5
2.8 to 3.3
Nickel (Ni), % 0 to 0.3
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.2 to 0.45
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.65 to 1.2
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0
Residuals, % 0
0 to 0.5