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C27400 Brass vs. C64700 Bronze

Both C27400 brass and C64700 bronze are copper alloys. They have 63% 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 C27400 brass and the bottom bar is C64700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 370 to 650
660

Thermal Properties

Latent Heat of Fusion, J/g 170
220
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 920
1090
Melting Onset (Solidus), °C 870
1030
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
210
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
38
Electrical Conductivity: Equal Weight (Specific), % IACS 31
38

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 45
43
Embodied Water, L/kg 320
310

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 13 to 23
21
Strength to Weight: Bending, points 14 to 21
19
Thermal Diffusivity, mm2/s 37
59
Thermal Shock Resistance, points 12 to 22
24

Alloy Composition

Copper (Cu), % 61 to 64
95.8 to 98
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 0 to 0.050
0 to 0.1
Nickel (Ni), % 0
1.6 to 2.2
Silicon (Si), % 0
0.4 to 0.8
Zinc (Zn), % 35.6 to 39
0 to 0.5
Residuals, % 0
0 to 0.5