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C71640 Copper-nickel vs. AWS BCo-1

C71640 copper-nickel belongs to the copper alloys classification, while AWS BCo-1 belongs to the cobalt alloys. There are 18 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C71640 copper-nickel and the bottom bar is AWS BCo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 52
78
Tensile Strength: Ultimate (UTS), MPa 490 to 630
700

Thermal Properties

Latent Heat of Fusion, J/g 240
420
Melting Completion (Liquidus), °C 1180
1150
Melting Onset (Solidus), °C 1120
1120
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 5.0
8.0
Embodied Energy, MJ/kg 73
110
Embodied Water, L/kg 280
430

Common Calculations

Stiffness to Weight: Axial, points 8.7
14
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 15 to 20
24
Strength to Weight: Bending, points 16 to 18
22
Thermal Shock Resistance, points 16 to 21
21

Alloy Composition


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Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
0.7 to 0.9
Carbon (C), % 0
0.35 to 0.45
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 0
46 to 54
Copper (Cu), % 61.7 to 67.8
0
Iron (Fe), % 1.7 to 2.3
0 to 1.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 1.5 to 2.5
0
Nickel (Ni), % 29 to 32
16 to 18
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
7.5 to 8.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 1.0
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0 to 0.5
0 to 0.5