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C71640 Copper-nickel vs. AWS ERNiCrFe-11

C71640 copper-nickel belongs to the copper alloys classification, while AWS ERNiCrFe-11 belongs to the nickel alloys. They have a modest 34% 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 (4, in this case) are not shown.

For each property being compared, the top bar is C71640 copper-nickel and the bottom bar is AWS ERNiCrFe-11.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
76
Tensile Strength: Ultimate (UTS), MPa 490 to 630
740

Thermal Properties

Latent Heat of Fusion, J/g 240
320
Melting Completion (Liquidus), °C 1180
1360
Melting Onset (Solidus), °C 1120
1310
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 29
11
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 40
49
Density, g/cm3 8.9
8.2
Embodied Carbon, kg CO2/kg material 5.0
8.0
Embodied Energy, MJ/kg 73
110
Embodied Water, L/kg 280
280

Common Calculations

Stiffness to Weight: Axial, points 8.7
13
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 15 to 20
25
Strength to Weight: Bending, points 16 to 18
22
Thermal Diffusivity, mm2/s 8.2
2.9
Thermal Shock Resistance, points 16 to 21
20

Alloy Composition

Aluminum (Al), % 0
1.0 to 1.7
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
21 to 25
Copper (Cu), % 61.7 to 67.8
0 to 1.0
Iron (Fe), % 1.7 to 2.3
7.2 to 20
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 1.5 to 2.5
0 to 1.0
Nickel (Ni), % 29 to 32
58 to 63
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0
0 to 0.5