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AWS ENiCrFe-2 vs. AWS ENiCu-7

Both AWS ENiCrFe-2 and AWS ENiCu-7 are nickel alloys. Both are furnished in the as-welded condition. They have 70% 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 ENiCrFe-2 and the bottom bar is AWS ENiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Elongation at Break, % 28
34
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 74
62
Tensile Strength: Ultimate (UTS), MPa 790
550

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Melting Completion (Liquidus), °C 1390
1270
Melting Onset (Solidus), °C 1350
1230
Specific Heat Capacity, J/kg-K 450
430
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 65
50
Density, g/cm3 8.5
8.7
Embodied Carbon, kg CO2/kg material 11
8.0
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 260
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 26
17
Strength to Weight: Bending, points 22
17
Thermal Shock Resistance, points 24
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.75
Carbon (C), % 0 to 0.1
0 to 0.1
Chromium (Cr), % 13 to 17
0
Cobalt (Co), % 0 to 0.12
0
Copper (Cu), % 0 to 0.5
20.6 to 38
Iron (Fe), % 0 to 12
0 to 2.5
Manganese (Mn), % 1.0 to 3.5
0 to 4.0
Molybdenum (Mo), % 0.5 to 2.5
0
Nickel (Ni), % 62 to 85
62 to 69
Niobium (Nb), % 0.5 to 4.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 1.5
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0
0 to 1.0
Residuals, % 0
0 to 0.5