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C24000 Brass vs. C87700 Bronze

Both C24000 brass and C87700 bronze are copper alloys. They have 88% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C24000 brass and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 42
42
Tensile Strength: Ultimate (UTS), MPa 310 to 640
300

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 1000
980
Melting Onset (Solidus), °C 970
900
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 140
120
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
45
Electrical Conductivity: Equal Weight (Specific), % IACS 34
48

Otherwise Unclassified Properties

Base Metal Price, % relative 27
29
Density, g/cm3 8.5
8.5
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 43
45
Embodied Water, L/kg 320
310

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
9.8
Strength to Weight: Bending, points 12 to 20
12
Thermal Diffusivity, mm2/s 43
34
Thermal Shock Resistance, points 10 to 22
11

Alloy Composition


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Antimony (Sb), % 0
0 to 0.1
Copper (Cu), % 78.5 to 81.5
87.5 to 90.5
Iron (Fe), % 0 to 0.050
0 to 0.5
Lead (Pb), % 0 to 0.050
0 to 0.090
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.15
Silicon (Si), % 0
2.5 to 3.5
Tin (Sn), % 0
0 to 2.0
Zinc (Zn), % 18.2 to 21.5
7.0 to 9.0
Residuals, % 0 to 0.2
0 to 0.8