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AWS ERNiCrMo-4 vs. AWS ERNiCu-7

Both AWS ERNiCrMo-4 and AWS ERNiCu-7 are nickel alloys. Both are furnished in the as-welded condition. They have 59% of their average alloy composition in common. There are 20 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-4 and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
160
Elongation at Break, % 28
34
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 84
61
Tensile Strength: Ultimate (UTS), MPa 790
550

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Melting Completion (Liquidus), °C 1590
1280
Melting Onset (Solidus), °C 1530
1240
Specific Heat Capacity, J/kg-K 410
440
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
50
Density, g/cm3 9.0
8.7
Embodied Carbon, kg CO2/kg material 13
8.5
Embodied Energy, MJ/kg 170
120
Embodied Water, L/kg 280
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 22
21
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 21
17
Thermal Shock Resistance, points 22
19

Alloy Composition


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Aluminum (Al), % 0
0 to 1.3
Carbon (C), % 0 to 0.020
0 to 0.15
Chromium (Cr), % 14.5 to 16.5
0
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0 to 0.5
18.3 to 36.5
Iron (Fe), % 4.0 to 7.0
0 to 2.5
Manganese (Mn), % 0 to 1.0
0 to 4.0
Molybdenum (Mo), % 15 to 17
0
Nickel (Ni), % 50 to 63.5
62 to 69
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.080
0 to 1.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
1.5 to 3.0
Tungsten (W), % 3.0 to 4.5
0
Vanadium (V), % 0 to 0.35
0
Residuals, % 0 to 0.5
0 to 0.5