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C18700 Copper vs. C67600 Bronze

Both C18700 copper and C67600 bronze are copper alloys. They have 60% of their average alloy composition in common.

For each property being compared, the top bar is C18700 copper and the bottom bar is C67600 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 9.0 to 9.6
13 to 33
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 43
40
Shear Strength, MPa 170 to 190
270 to 350
Tensile Strength: Ultimate (UTS), MPa 290 to 330
430 to 570
Tensile Strength: Yield (Proof), MPa 230 to 250
170 to 380

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1080
890
Melting Onset (Solidus), °C 950
870
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 380
110
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
24
Electrical Conductivity: Equal Weight (Specific), % IACS 99
27

Otherwise Unclassified Properties

Base Metal Price, % relative 30
23
Density, g/cm3 9.0
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
47
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
63 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
140 to 680
Stiffness to Weight: Axial, points 7.1
7.2
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 9.0 to 10
15 to 20
Strength to Weight: Bending, points 11 to 12
16 to 19
Thermal Diffusivity, mm2/s 110
35
Thermal Shock Resistance, points 10 to 12
14 to 19

Alloy Composition

Copper (Cu), % 98 to 99.2
57 to 60
Iron (Fe), % 0
0.4 to 1.3
Lead (Pb), % 0.8 to 1.5
0.5 to 1.0
Manganese (Mn), % 0
0.050 to 0.5
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0
35.2 to 41.6
Residuals, % 0
0 to 0.5

Comparable Variants