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C94700 Bronze vs. CR023A Copper

Both C94700 bronze and CR023A copper are copper alloys. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is C94700 bronze and the bottom bar is CR023A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 7.9 to 32
15
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
43
Tensile Strength: Ultimate (UTS), MPa 350 to 590
220
Tensile Strength: Yield (Proof), MPa 160 to 400
130

Thermal Properties

Latent Heat of Fusion, J/g 200
210
Maximum Temperature: Mechanical, °C 190
200
Melting Completion (Liquidus), °C 1030
1090
Melting Onset (Solidus), °C 900
1040
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 54
380
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
100
Electrical Conductivity: Equal Weight (Specific), % IACS 12
100

Otherwise Unclassified Properties

Base Metal Price, % relative 34
31
Density, g/cm3 8.8
9.0
Embodied Carbon, kg CO2/kg material 3.5
2.6
Embodied Energy, MJ/kg 56
41
Embodied Water, L/kg 350
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41 to 89
29
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 700
76
Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 11 to 19
6.8
Strength to Weight: Bending, points 13 to 18
9.0
Thermal Diffusivity, mm2/s 16
110
Thermal Shock Resistance, points 12 to 21
7.8

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.15
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 85 to 90
99.9 to 99.995
Iron (Fe), % 0 to 0.25
0
Lead (Pb), % 0 to 0.1
0 to 0.0050
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 4.5 to 6.0
0
Phosphorus (P), % 0 to 0.050
0.0050 to 0.013
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 4.5 to 6.0
0
Zinc (Zn), % 1.0 to 2.5
0
Residuals, % 0 to 1.3
0