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C94400 Bronze vs. CR020A Copper

Both C94400 bronze and CR020A copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 80% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C94400 bronze and the bottom bar is CR020A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 18
15
Poisson's Ratio 0.35
0.34
Shear Modulus, GPa 37
43
Tensile Strength: Ultimate (UTS), MPa 220
220
Tensile Strength: Yield (Proof), MPa 110
130

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 150
200
Melting Completion (Liquidus), °C 940
1090
Melting Onset (Solidus), °C 790
1040
Specific Heat Capacity, J/kg-K 350
390
Thermal Conductivity, W/m-K 52
380
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
100
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
100

Otherwise Unclassified Properties

Base Metal Price, % relative 32
31
Density, g/cm3 9.1
9.0
Embodied Carbon, kg CO2/kg material 3.4
2.6
Embodied Energy, MJ/kg 54
41
Embodied Water, L/kg 390
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
29
Resilience: Unit (Modulus of Resilience), kJ/m3 60
76
Stiffness to Weight: Axial, points 6.1
7.2
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 6.8
6.8
Strength to Weight: Bending, points 9.0
9.0
Thermal Diffusivity, mm2/s 17
110
Thermal Shock Resistance, points 8.3
7.8

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.8
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 76.1 to 84
99.95 to 99.999
Iron (Fe), % 0 to 0.15
0
Lead (Pb), % 9.0 to 12
0 to 0.0050
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.050
0.0010 to 0.0060
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 7.0 to 9.0
0
Zinc (Zn), % 0 to 0.8
0