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CC381H Copper-nickel vs. AWS BNi-9

CC381H copper-nickel belongs to the copper alloys classification, while AWS BNi-9 belongs to the nickel alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is CC381H copper-nickel and the bottom bar is AWS BNi-9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 52
72
Tensile Strength: Ultimate (UTS), MPa 380
580

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Melting Completion (Liquidus), °C 1180
1060
Melting Onset (Solidus), °C 1120
1060
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 40
60
Density, g/cm3 8.9
8.4
Embodied Carbon, kg CO2/kg material 5.0
9.3
Embodied Energy, MJ/kg 73
130
Embodied Water, L/kg 280
260

Common Calculations

Stiffness to Weight: Axial, points 8.6
12
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 12
19
Strength to Weight: Bending, points 13
18
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.050
Boron (B), % 0
3.3 to 4.0
Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 0
13.5 to 16.5
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 64.5 to 69.9
0
Iron (Fe), % 0.5 to 1.5
0 to 1.5
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0
Nickel (Ni), % 29 to 31
77.1 to 83.3
Phosphorus (P), % 0 to 0.010
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.5
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5