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C64700 Bronze vs. C68000 Brass

Both C64700 bronze and C68000 brass are copper alloys. They have 59% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C64700 bronze and the bottom bar is C68000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 9.0
27
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 660
390
Tensile Strength: Yield (Proof), MPa 560
140

Thermal Properties

Latent Heat of Fusion, J/g 220
170
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1090
880
Melting Onset (Solidus), °C 1030
870
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 210
96
Thermal Expansion, µm/m-K 17
21

Otherwise Unclassified Properties

Base Metal Price, % relative 31
23
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 43
48
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
82
Resilience: Unit (Modulus of Resilience), kJ/m3 1370
95
Stiffness to Weight: Axial, points 7.3
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 21
14
Strength to Weight: Bending, points 19
15
Thermal Diffusivity, mm2/s 59
31
Thermal Shock Resistance, points 24
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Copper (Cu), % 95.8 to 98
56 to 60
Iron (Fe), % 0 to 0.1
0.25 to 1.3
Lead (Pb), % 0 to 0.1
0 to 0.050
Manganese (Mn), % 0
0.010 to 0.5
Nickel (Ni), % 1.6 to 2.2
0.2 to 0.8
Silicon (Si), % 0.4 to 0.8
0.040 to 0.15
Tin (Sn), % 0
0.75 to 1.1
Zinc (Zn), % 0 to 0.5
35.6 to 42.8
Residuals, % 0
0 to 0.5