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AWS ERNiCrMo-2 vs. EN 1.4931 Steel

AWS ERNiCrMo-2 belongs to the nickel alloys classification, while EN 1.4931 steel belongs to the iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrMo-2 and the bottom bar is EN 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 750
810

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 11
24
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
11

Otherwise Unclassified Properties

Base Metal Price, % relative 55
8.5
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 9.2
2.9
Embodied Energy, MJ/kg 120
42
Embodied Water, L/kg 270
100

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 25
29
Strength to Weight: Bending, points 22
25
Thermal Diffusivity, mm2/s 2.9
6.5
Thermal Shock Resistance, points 20
22

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.2 to 0.26
Chromium (Cr), % 20.5 to 23
11.3 to 12.2
Cobalt (Co), % 0.5 to 2.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 17 to 20
83.2 to 86.8
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 8.0 to 10
1.0 to 1.2
Nickel (Ni), % 40.3 to 53.8
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0.2 to 1.0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35
Residuals, % 0 to 0.5
0