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C43000 Brass vs. C70400 Copper-nickel

Both C43000 brass and C70400 copper-nickel are copper alloys. They have 86% 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 C43000 brass 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 0.33
0.34
Shear Modulus, GPa 42
45
Tensile Strength: Ultimate (UTS), MPa 320 to 710
300 to 310
Tensile Strength: Yield (Proof), MPa 130 to 550
95 to 230

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 1030
1120
Melting Onset (Solidus), °C 1000
1060
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 120
64
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
14
Electrical Conductivity: Equal Weight (Specific), % IACS 28
14

Otherwise Unclassified Properties

Base Metal Price, % relative 29
32
Density, g/cm3 8.6
8.9
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 46
47
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 1350
38 to 220
Stiffness to Weight: Axial, points 7.1
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 10 to 23
9.3 to 9.8
Strength to Weight: Bending, points 12 to 20
11 to 12
Thermal Diffusivity, mm2/s 36
18
Thermal Shock Resistance, points 11 to 25
10 to 11

Alloy Composition

Copper (Cu), % 84 to 87
89.8 to 93.6
Iron (Fe), % 0 to 0.050
1.3 to 1.7
Lead (Pb), % 0 to 0.1
0 to 0.050
Manganese (Mn), % 0
0.3 to 0.8
Nickel (Ni), % 0
4.8 to 6.2
Tin (Sn), % 1.7 to 2.7
0
Zinc (Zn), % 9.7 to 14.3
0 to 1.0
Residuals, % 0
0 to 0.5