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C70400 Copper-nickel vs. C85700 Brass

Both C70400 copper-nickel and C85700 brass are copper alloys. They have 63% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C70400 copper-nickel and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 45
40
Tensile Strength: Ultimate (UTS), MPa 300 to 310
310
Tensile Strength: Yield (Proof), MPa 95 to 230
110

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 210
120
Melting Completion (Liquidus), °C 1120
940
Melting Onset (Solidus), °C 1060
910
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 64
84
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
22
Electrical Conductivity: Equal Weight (Specific), % IACS 14
25

Otherwise Unclassified Properties

Base Metal Price, % relative 32
24
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 47
47
Embodied Water, L/kg 300
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 38 to 220
59
Stiffness to Weight: Axial, points 7.5
7.2
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 9.3 to 9.8
11
Strength to Weight: Bending, points 11 to 12
13
Thermal Diffusivity, mm2/s 18
27
Thermal Shock Resistance, points 10 to 11
10

Alloy Composition


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Aluminum (Al), % 0
0 to 0.8
Copper (Cu), % 89.8 to 93.6
58 to 64
Iron (Fe), % 1.3 to 1.7
0 to 0.7
Lead (Pb), % 0 to 0.050
0.8 to 1.5
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 4.8 to 6.2
0 to 1.0
Silicon (Si), % 0
0 to 0.050
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0 to 1.0
32 to 40
Residuals, % 0 to 0.5
0 to 1.3