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C91000 Bronze vs. C99300 Copper

Both C91000 bronze and C99300 copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 72% of their average alloy composition in common.

For each property being compared, the top bar is C91000 bronze and the bottom bar is C99300 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
200
Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 7.0
2.0
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 39
46
Tensile Strength: Ultimate (UTS), MPa 230
660
Tensile Strength: Yield (Proof), MPa 150
380

Thermal Properties

Latent Heat of Fusion, J/g 180
240
Maximum Temperature: Mechanical, °C 160
250
Melting Completion (Liquidus), °C 960
1080
Melting Onset (Solidus), °C 820
1070
Specific Heat Capacity, J/kg-K 360
450
Thermal Conductivity, W/m-K 64
43
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 37
35
Density, g/cm3 8.6
8.2
Embodied Carbon, kg CO2/kg material 4.1
4.5
Embodied Energy, MJ/kg 67
70
Embodied Water, L/kg 420
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
11
Resilience: Unit (Modulus of Resilience), kJ/m3 100
590
Stiffness to Weight: Axial, points 6.8
8.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 7.5
22
Strength to Weight: Bending, points 9.7
20
Thermal Diffusivity, mm2/s 20
12
Thermal Shock Resistance, points 8.8
22

Alloy Composition

Aluminum (Al), % 0 to 0.0050
10.7 to 11.5
Antimony (Sb), % 0 to 0.2
0
Cobalt (Co), % 0
1.0 to 2.0
Copper (Cu), % 84 to 86
68.6 to 74.4
Iron (Fe), % 0 to 0.1
0.4 to 1.0
Lead (Pb), % 0 to 0.2
0 to 0.020
Nickel (Ni), % 0 to 0.8
13.5 to 16.5
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0 to 0.020
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 14 to 16
0 to 0.050
Zinc (Zn), % 0 to 1.5
0
Residuals, % 0
0 to 0.3