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C70700 Copper-nickel vs. C43500 Brass

Both C70700 copper-nickel and C43500 brass are copper alloys. They have 81% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is C43500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 39
8.5 to 46
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 46
42
Shear Strength, MPa 220
220 to 310
Tensile Strength: Ultimate (UTS), MPa 320
320 to 530
Tensile Strength: Yield (Proof), MPa 110
120 to 480

Thermal Properties

Latent Heat of Fusion, J/g 220
190
Maximum Temperature: Mechanical, °C 220
160
Melting Completion (Liquidus), °C 1120
1000
Melting Onset (Solidus), °C 1060
970
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 59
120
Thermal Expansion, µm/m-K 16
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
28
Electrical Conductivity: Equal Weight (Specific), % IACS 12
30

Otherwise Unclassified Properties

Base Metal Price, % relative 34
28
Density, g/cm3 8.9
8.5
Embodied Carbon, kg CO2/kg material 3.4
2.7
Embodied Energy, MJ/kg 52
45
Embodied Water, L/kg 300
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
44 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 51
65 to 1040
Stiffness to Weight: Axial, points 7.6
7.2
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 10
10 to 17
Strength to Weight: Bending, points 12
12 to 17
Thermal Diffusivity, mm2/s 17
37
Thermal Shock Resistance, points 12
11 to 18

Alloy Composition


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Copper (Cu), % 88.5 to 90.5
79 to 83
Iron (Fe), % 0 to 0.050
0 to 0.050
Lead (Pb), % 0
0 to 0.090
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 9.5 to 10.5
0
Tin (Sn), % 0
0.6 to 1.2
Zinc (Zn), % 0
15.4 to 20.4
Residuals, % 0 to 0.5
0 to 0.3