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AWS ERNiCrMo-4 vs. SAE-AISI A2 Steel

AWS ERNiCrMo-4 belongs to the nickel alloys classification, while SAE-AISI A2 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrMo-4 and the bottom bar is SAE-AISI A2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 84
74
Tensile Strength: Ultimate (UTS), MPa 790
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1590
1450
Melting Onset (Solidus), °C 1530
1410
Specific Heat Capacity, J/kg-K 410
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
5.5
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 13
2.7
Embodied Energy, MJ/kg 170
38
Embodied Water, L/kg 280
73

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
25 to 73
Strength to Weight: Bending, points 21
23 to 46
Thermal Shock Resistance, points 22
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.020
1.0 to 1.1
Chromium (Cr), % 14.5 to 16.5
4.8 to 5.5
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0 to 0.5
0 to 0.25
Iron (Fe), % 4.0 to 7.0
89.4 to 93.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 15 to 17
0.9 to 1.4
Nickel (Ni), % 50 to 63.5
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.080
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 3.0 to 4.5
0
Vanadium (V), % 0 to 0.35
0.15 to 0.5
Residuals, % 0 to 0.5
0