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SAE-AISI M2 Steel vs. AWS E70C-Ni2

Both SAE-AISI M2 steel and AWS E70C-Ni2 are iron alloys. They have 82% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (7, 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 E70C-Ni2.

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
72
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
560

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1570
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 22
52
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
3.3
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.8
1.6
Embodied Energy, MJ/kg 130
22
Embodied Water, L/kg 98
51

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 25 to 71
20
Strength to Weight: Bending, points 22 to 44
19
Thermal Diffusivity, mm2/s 5.9
14
Thermal Shock Resistance, points 27 to 76
17

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0 to 0.35
Iron (Fe), % 78.5 to 83.4
94.1 to 98.3
Manganese (Mn), % 0.15 to 0.4
0 to 1.3
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
1.8 to 2.8
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.2 to 0.45
0 to 0.9
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 to 0.030
Residuals, % 0
0 to 0.5