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C65400 Bronze vs. C70400 Copper-nickel

Both C65400 bronze and C70400 copper-nickel are copper alloys. They have a moderately high 92% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C65400 bronze and the bottom bar is C70400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
45
Tensile Strength: Ultimate (UTS), MPa 500 to 1060
300 to 310
Tensile Strength: Yield (Proof), MPa 170 to 910
95 to 230

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Maximum Temperature: Mechanical, °C 200
210
Melting Completion (Liquidus), °C 1020
1120
Melting Onset (Solidus), °C 960
1060
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 36
64
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
14
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
14

Otherwise Unclassified Properties

Base Metal Price, % relative 31
32
Density, g/cm3 8.7
8.9
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 45
47
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 3640
38 to 220
Stiffness to Weight: Axial, points 7.3
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16 to 34
9.3 to 9.8
Strength to Weight: Bending, points 16 to 27
11 to 12
Thermal Diffusivity, mm2/s 10
18
Thermal Shock Resistance, points 18 to 39
10 to 11

Alloy Composition

Chromium (Cr), % 0.010 to 0.12
0
Copper (Cu), % 93.8 to 96.1
89.8 to 93.6
Iron (Fe), % 0
1.3 to 1.7
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0
0.3 to 0.8
Nickel (Ni), % 0
4.8 to 6.2
Silicon (Si), % 2.7 to 3.4
0
Tin (Sn), % 1.2 to 1.9
0
Zinc (Zn), % 0 to 0.5
0 to 1.0
Residuals, % 0
0 to 0.5

Comparable Variants