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AWS BNi-4 vs. C72900 Copper-nickel

AWS BNi-4 belongs to the nickel alloys classification, while C72900 copper-nickel belongs to the copper alloys. 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 AWS BNi-4 and the bottom bar is C72900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
120
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 67
45
Tensile Strength: Ultimate (UTS), MPa 430
870 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 340
210
Melting Completion (Liquidus), °C 1070
1120
Melting Onset (Solidus), °C 980
950
Specific Heat Capacity, J/kg-K 470
380
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 60
39
Density, g/cm3 8.5
8.8
Embodied Carbon, kg CO2/kg material 10
4.6
Embodied Energy, MJ/kg 140
72
Embodied Water, L/kg 220
360

Common Calculations

Stiffness to Weight: Axial, points 12
7.6
Stiffness to Weight: Bending, points 22
19
Strength to Weight: Axial, points 14
27 to 34
Strength to Weight: Bending, points 15
23 to 27
Thermal Shock Resistance, points 16
31 to 38

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 1.5 to 2.2
0
Carbon (C), % 0 to 0.060
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
74.1 to 78
Iron (Fe), % 0 to 1.5
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0
0 to 0.3
Nickel (Ni), % 91.4 to 95.5
14.5 to 15.5
Niobium (Nb), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 3.0 to 4.0
0
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
7.5 to 8.5
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 0.5
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.3