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AWS ERNiCrMo-2 vs. EN 1.7102 Steel

AWS ERNiCrMo-2 belongs to the nickel alloys classification, while EN 1.7102 steel belongs to the iron alloys. They have a modest 20% 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 (2, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrMo-2 and the bottom bar is EN 1.7102 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
72
Tensile Strength: Ultimate (UTS), MPa 750
670 to 2010

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 11
47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 55
2.2
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 9.2
1.5
Embodied Energy, MJ/kg 120
20
Embodied Water, L/kg 270
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 25
24 to 72
Strength to Weight: Bending, points 22
22 to 46
Thermal Diffusivity, mm2/s 2.9
13
Thermal Shock Resistance, points 20
20 to 60

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.51 to 0.59
Chromium (Cr), % 20.5 to 23
0.5 to 0.8
Cobalt (Co), % 0.5 to 2.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 17 to 20
96.2 to 97.3
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 40.3 to 53.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
1.2 to 1.6
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0.2 to 1.0
0
Residuals, % 0 to 0.5
0