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C18700 Copper vs. C40500 Penny Bronze

Both C18700 copper and C40500 penny bronze are copper alloys. They have a very high 95% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is C40500 penny bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 9.0 to 9.6
3.0 to 49
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
43
Shear Strength, MPa 170 to 190
210 to 310
Tensile Strength: Ultimate (UTS), MPa 290 to 330
270 to 540
Tensile Strength: Yield (Proof), MPa 230 to 250
79 to 520

Thermal Properties

Latent Heat of Fusion, J/g 210
200
Maximum Temperature: Mechanical, °C 200
190
Melting Completion (Liquidus), °C 1080
1060
Melting Onset (Solidus), °C 950
1020
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 380
160
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
41
Electrical Conductivity: Equal Weight (Specific), % IACS 99
42

Otherwise Unclassified Properties

Base Metal Price, % relative 30
30
Density, g/cm3 9.0
8.8
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 41
43
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
16 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
28 to 1200
Stiffness to Weight: Axial, points 7.1
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 9.0 to 10
8.5 to 17
Strength to Weight: Bending, points 11 to 12
10 to 17
Thermal Diffusivity, mm2/s 110
48
Thermal Shock Resistance, points 10 to 12
9.5 to 19

Alloy Composition

Copper (Cu), % 98 to 99.2
94 to 96
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0.8 to 1.5
0 to 0.050
Tin (Sn), % 0
0.7 to 1.3
Zinc (Zn), % 0
2.1 to 5.3
Residuals, % 0
0 to 0.5

Comparable Variants