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C32000 Brass vs. C64800 Bronze

Both C32000 brass and C64800 bronze are copper alloys. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is C32000 brass and the bottom bar is C64800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 6.8 to 29
8.0
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 41
44
Shear Strength, MPa 180 to 280
380
Tensile Strength: Ultimate (UTS), MPa 270 to 470
640
Tensile Strength: Yield (Proof), MPa 78 to 390
630

Thermal Properties

Latent Heat of Fusion, J/g 190
220
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 1020
1090
Melting Onset (Solidus), °C 990
1030
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 160
260
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
65
Electrical Conductivity: Equal Weight (Specific), % IACS 37
66

Otherwise Unclassified Properties

Base Metal Price, % relative 28
33
Density, g/cm3 8.7
8.9
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 42
43
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 59
51
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 680
1680
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.8 to 15
20
Strength to Weight: Bending, points 11 to 16
19
Thermal Diffusivity, mm2/s 47
75
Thermal Shock Resistance, points 9.5 to 16
23

Alloy Composition

Chromium (Cr), % 0
0 to 0.090
Cobalt (Co), % 0
1.0 to 3.0
Copper (Cu), % 83.5 to 86.5
92.4 to 98.8
Iron (Fe), % 0 to 0.1
0 to 1.0
Lead (Pb), % 1.5 to 2.2
0 to 0.050
Nickel (Ni), % 0 to 0.25
0 to 0.5
Phosphorus (P), % 0
0 to 0.5
Silicon (Si), % 0
0.2 to 1.0
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 10.6 to 15
0 to 0.5
Residuals, % 0
0 to 0.5