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C70700 Copper-nickel vs. AWS BNi-5a

C70700 copper-nickel belongs to the copper alloys classification, while AWS BNi-5a belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is AWS BNi-5a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
72
Tensile Strength: Ultimate (UTS), MPa 320
480

Thermal Properties

Latent Heat of Fusion, J/g 220
420
Melting Completion (Liquidus), °C 1120
1150
Melting Onset (Solidus), °C 1060
1070
Specific Heat Capacity, J/kg-K 390
500
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 34
55
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 3.4
9.0
Embodied Energy, MJ/kg 52
130
Embodied Water, L/kg 300
260

Common Calculations

Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10
17
Strength to Weight: Bending, points 12
17
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
1.0 to 1.5
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
18.5 to 19.5
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 88.5 to 90.5
0
Iron (Fe), % 0 to 0.050
0 to 0.5
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 9.5 to 10.5
70.1 to 73.5
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
7.0 to 7.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5