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C67000 Bronze vs. C70250 Copper

Both C67000 bronze and C70250 copper are copper alloys. They have 66% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C67000 bronze and the bottom bar is C70250 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 42
44
Tensile Strength: Ultimate (UTS), MPa 660 to 880
520 to 740

Thermal Properties

Latent Heat of Fusion, J/g 190
220
Maximum Temperature: Mechanical, °C 160
210
Melting Completion (Liquidus), °C 900
1100
Melting Onset (Solidus), °C 850
1080
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 99
170
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
36 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 25
37 to 51

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 2.9
2.9
Embodied Energy, MJ/kg 49
45
Embodied Water, L/kg 350
310

Common Calculations

Stiffness to Weight: Axial, points 7.8
7.4
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 23 to 31
16 to 23
Strength to Weight: Bending, points 21 to 26
16 to 21
Thermal Diffusivity, mm2/s 30
49
Thermal Shock Resistance, points 21 to 29
18 to 26

Alloy Composition

Aluminum (Al), % 3.0 to 6.0
0
Copper (Cu), % 63 to 68
92.7 to 97.5
Iron (Fe), % 2.0 to 4.0
0
Lead (Pb), % 0 to 0.2
0 to 0.050
Magnesium (Mg), % 0
0.050 to 0.3
Manganese (Mn), % 2.5 to 5.0
0 to 0.1
Nickel (Ni), % 0
2.2 to 4.2
Silicon (Si), % 0
0.25 to 1.2
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 21.8 to 32.5
0 to 1.0
Residuals, % 0
0 to 0.5