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AWS ERNiCrMo-3 vs. SAE-AISI A2 Steel

AWS ERNiCrMo-3 belongs to the nickel alloys classification, while SAE-AISI A2 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrMo-3 and the bottom bar is SAE-AISI A2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
74
Tensile Strength: Ultimate (UTS), MPa 870
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 11
38
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 80
5.5
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
2.7
Embodied Energy, MJ/kg 190
38
Embodied Water, L/kg 290
73

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28
25 to 73
Strength to Weight: Bending, points 24
23 to 46
Thermal Diffusivity, mm2/s 2.8
10
Thermal Shock Resistance, points 25
25 to 71

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.010
1.0 to 1.1
Chromium (Cr), % 20 to 23
4.8 to 5.5
Copper (Cu), % 0 to 0.5
0 to 0.25
Iron (Fe), % 0 to 5.0
89.4 to 93.3
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0.9 to 1.4
Nickel (Ni), % 58 to 68.9
0 to 0.3
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0
Vanadium (V), % 0
0.15 to 0.5
Residuals, % 0 to 0.5
0