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C18700 Copper vs. C22000 Bronze

Both C18700 copper and C22000 bronze are copper alloys. They have a moderately high 90% 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 C22000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 9.0 to 9.6
1.9 to 45
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
42
Shear Strength, MPa 170 to 190
200 to 300
Tensile Strength: Ultimate (UTS), MPa 290 to 330
260 to 520
Tensile Strength: Yield (Proof), MPa 230 to 250
69 to 500

Thermal Properties

Latent Heat of Fusion, J/g 210
200
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 1080
1040
Melting Onset (Solidus), °C 950
1020
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 380
190
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
44
Electrical Conductivity: Equal Weight (Specific), % IACS 99
45

Otherwise Unclassified Properties

Base Metal Price, % relative 30
29
Density, g/cm3 9.0
8.7
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 41
42
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
3.7 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
21 to 1110
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
8.1 to 17
Strength to Weight: Bending, points 11 to 12
10 to 17
Thermal Diffusivity, mm2/s 110
56
Thermal Shock Resistance, points 10 to 12
8.8 to 18

Alloy Composition

Copper (Cu), % 98 to 99.2
89 to 91
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0.8 to 1.5
0 to 0.050
Zinc (Zn), % 0
8.7 to 11
Residuals, % 0
0 to 0.2

Comparable Variants