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C93500 Bronze vs. CR021A Copper

Both C93500 bronze and CR021A copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is C93500 bronze and the bottom bar is CR021A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 15
15
Poisson's Ratio 0.35
0.34
Shear Modulus, GPa 38
43
Tensile Strength: Ultimate (UTS), MPa 220
230
Tensile Strength: Yield (Proof), MPa 110
140

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 1000
1090
Melting Onset (Solidus), °C 850
1040
Specific Heat Capacity, J/kg-K 360
390
Thermal Conductivity, W/m-K 70
380
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
98
Electrical Conductivity: Equal Weight (Specific), % IACS 15
99

Otherwise Unclassified Properties

Base Metal Price, % relative 31
31
Density, g/cm3 9.0
9.0
Embodied Carbon, kg CO2/kg material 3.0
2.6
Embodied Energy, MJ/kg 49
41
Embodied Water, L/kg 350
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
31
Resilience: Unit (Modulus of Resilience), kJ/m3 59
83
Stiffness to Weight: Axial, points 6.3
7.2
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 6.9
7.1
Strength to Weight: Bending, points 9.1
9.3
Thermal Diffusivity, mm2/s 22
110
Thermal Shock Resistance, points 8.5
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.3
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 83 to 86
99.95 to 99.998
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 8.0 to 10
0 to 0.0050
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 1.5
0.0020 to 0.0070
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.3 to 6.0
0
Zinc (Zn), % 0 to 2.0
0
Residuals, % 0 to 1.0
0