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C64200 Bronze vs. C70260 Copper

Both C64200 bronze and C70260 copper are copper alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is C64200 bronze and the bottom bar is C70260 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 14 to 35
9.5 to 19
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 42
44
Shear Strength, MPa 330 to 390
320 to 450
Tensile Strength: Ultimate (UTS), MPa 540 to 640
520 to 760
Tensile Strength: Yield (Proof), MPa 230 to 320
410 to 650

Thermal Properties

Latent Heat of Fusion, J/g 250
220
Maximum Temperature: Mechanical, °C 210
200
Melting Completion (Liquidus), °C 1000
1060
Melting Onset (Solidus), °C 980
1040
Specific Heat Capacity, J/kg-K 430
390
Thermal Conductivity, W/m-K 45
160
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
40 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
40 to 51

Otherwise Unclassified Properties

Base Metal Price, % relative 29
31
Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 50
43
Embodied Water, L/kg 370
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73 to 170
46 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 470
710 to 1810
Stiffness to Weight: Axial, points 7.5
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 18 to 21
16 to 24
Strength to Weight: Bending, points 18 to 20
16 to 21
Thermal Diffusivity, mm2/s 13
45
Thermal Shock Resistance, points 20 to 23
18 to 27

Alloy Composition

Aluminum (Al), % 6.3 to 7.6
0
Arsenic (As), % 0 to 0.15
0
Copper (Cu), % 88.2 to 92.2
95.8 to 98.8
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.25
1.0 to 3.0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 1.5 to 2.2
0.2 to 0.7
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0
0 to 0.5