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C24000 Brass vs. C72700 Copper-nickel

Both C24000 brass and C72700 copper-nickel are copper alloys. They have 80% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C24000 brass and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 42
44
Tensile Strength: Ultimate (UTS), MPa 310 to 640
460 to 1070

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 1000
1100
Melting Onset (Solidus), °C 970
930
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 140
54
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
11
Electrical Conductivity: Equal Weight (Specific), % IACS 34
11

Otherwise Unclassified Properties

Base Metal Price, % relative 27
36
Density, g/cm3 8.5
8.8
Embodied Carbon, kg CO2/kg material 2.6
4.0
Embodied Energy, MJ/kg 43
62
Embodied Water, L/kg 320
350

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 10 to 21
14 to 34
Strength to Weight: Bending, points 12 to 20
15 to 26
Thermal Diffusivity, mm2/s 43
16
Thermal Shock Resistance, points 10 to 22
16 to 38

Alloy Composition

Copper (Cu), % 78.5 to 81.5
82.1 to 86
Iron (Fe), % 0 to 0.050
0 to 0.5
Lead (Pb), % 0 to 0.050
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0
0.050 to 0.3
Nickel (Ni), % 0
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Tin (Sn), % 0
5.5 to 6.5
Zinc (Zn), % 18.2 to 21.5
0 to 0.5
Residuals, % 0
0 to 0.3