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C90500 Gun Metal vs. CC333G Bronze

Both C90500 gun metal and CC333G bronze 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 (4, in this case) are not shown.

For each property being compared, the top bar is C90500 gun metal and the bottom bar is CC333G bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 20
13
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
45
Tensile Strength: Ultimate (UTS), MPa 320
710
Tensile Strength: Yield (Proof), MPa 160
310

Thermal Properties

Latent Heat of Fusion, J/g 190
230
Maximum Temperature: Mechanical, °C 170
230
Melting Completion (Liquidus), °C 1000
1080
Melting Onset (Solidus), °C 850
1020
Specific Heat Capacity, J/kg-K 370
440
Thermal Conductivity, W/m-K 75
38
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 35
29
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 3.6
3.5
Embodied Energy, MJ/kg 59
56
Embodied Water, L/kg 390
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
75
Resilience: Unit (Modulus of Resilience), kJ/m3 110
410
Stiffness to Weight: Axial, points 6.9
8.0
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 10
24
Strength to Weight: Bending, points 12
21
Thermal Diffusivity, mm2/s 23
10
Thermal Shock Resistance, points 12
24

Alloy Composition

Aluminum (Al), % 0 to 0.0050
8.5 to 10.5
Antimony (Sb), % 0 to 0.2
0
Bismuth (Bi), % 0
0 to 0.010
Chromium (Cr), % 0
0 to 0.050
Copper (Cu), % 86 to 89
76 to 83
Iron (Fe), % 0 to 0.2
3.0 to 5.5
Lead (Pb), % 0 to 0.3
0 to 0.030
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 3.0
Nickel (Ni), % 0 to 1.0
3.7 to 6.0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0 to 0.1
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 9.0 to 11
0 to 0.1
Zinc (Zn), % 1.0 to 3.0
0 to 0.5
Residuals, % 0 to 0.3
0