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AWS ERNiCrMo-2 vs. AWS ERNiMo-3

Both AWS ERNiCrMo-2 and AWS ERNiMo-3 are nickel alloys. Both are furnished in the as-welded condition. They have 70% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrMo-2 and the bottom bar is AWS ERNiMo-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 81
83
Tensile Strength: Ultimate (UTS), MPa 750
770

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1460
1600
Melting Onset (Solidus), °C 1410
1540
Specific Heat Capacity, J/kg-K 450
400
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 55
70
Density, g/cm3 8.4
9.1
Embodied Carbon, kg CO2/kg material 9.2
15
Embodied Energy, MJ/kg 120
190
Embodied Water, L/kg 270
270

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 25
24
Strength to Weight: Bending, points 22
21
Thermal Shock Resistance, points 20
24

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.12
Chromium (Cr), % 20.5 to 23
4.0 to 6.0
Cobalt (Co), % 0.5 to 2.5
0 to 2.5
Copper (Cu), % 0 to 0.5
0 to 0.5
Iron (Fe), % 17 to 20
4.0 to 7.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
23 to 26
Nickel (Ni), % 40.3 to 53.8
53.7 to 69
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0.2 to 1.0
0 to 1.0
Vanadium (V), % 0
0 to 0.6
Residuals, % 0
0 to 0.5