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C34000 Brass vs. C65500 Bronze

Both C34000 brass and C65500 bronze are copper alloys. They have 65% of their average alloy composition in common. There are 25 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 C34000 brass and the bottom bar is C65500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Poisson's Ratio 0.31
0.34
Rockwell B Hardness 53 to 91
62 to 97
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 340 to 650
360 to 760

Thermal Properties

Latent Heat of Fusion, J/g 170
260
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 930
1030
Melting Onset (Solidus), °C 890
970
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 120
36
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 29
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 24
29
Density, g/cm3 8.1
8.6
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 45
42
Embodied Water, L/kg 320
300

Common Calculations

Stiffness to Weight: Axial, points 7.1
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 11 to 22
12 to 24
Strength to Weight: Bending, points 13 to 21
13 to 21
Thermal Diffusivity, mm2/s 37
10
Thermal Shock Resistance, points 11 to 22
12 to 26

Alloy Composition

Copper (Cu), % 62 to 65
91.5 to 96.7
Iron (Fe), % 0 to 0.1
0 to 0.8
Lead (Pb), % 0.8 to 1.5
0 to 0.050
Manganese (Mn), % 0
0.5 to 1.3
Nickel (Ni), % 0
0 to 0.6
Silicon (Si), % 0
2.8 to 3.8
Zinc (Zn), % 33 to 37.2
0 to 1.5
Residuals, % 0
0 to 0.5

Comparable Variants