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CC482K Bronze vs. C90500 Gun Metal

Both CC482K bronze and C90500 gun metal are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 97% 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 CC482K bronze and the bottom bar is C90500 gun metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 5.6
20
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 300
320
Tensile Strength: Yield (Proof), MPa 160
160

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 980
1000
Melting Onset (Solidus), °C 860
850
Specific Heat Capacity, J/kg-K 360
370
Thermal Conductivity, W/m-K 64
75
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
11
Electrical Conductivity: Equal Weight (Specific), % IACS 10
11

Otherwise Unclassified Properties

Base Metal Price, % relative 36
35
Density, g/cm3 8.8
8.7
Embodied Carbon, kg CO2/kg material 3.8
3.6
Embodied Energy, MJ/kg 62
59
Embodied Water, L/kg 400
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
54
Resilience: Unit (Modulus of Resilience), kJ/m3 120
110
Stiffness to Weight: Axial, points 6.8
6.9
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 9.5
10
Strength to Weight: Bending, points 11
12
Thermal Diffusivity, mm2/s 20
23
Thermal Shock Resistance, points 11
12

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.0050
Antimony (Sb), % 0 to 0.2
0 to 0.2
Copper (Cu), % 83.5 to 87
86 to 89
Iron (Fe), % 0 to 0.2
0 to 0.2
Lead (Pb), % 0.7 to 2.5
0 to 0.3
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.4
0 to 1.5
Silicon (Si), % 0 to 0.010
0 to 0.0050
Sulfur (S), % 0 to 0.080
0 to 0.050
Tin (Sn), % 10.5 to 12.5
9.0 to 11
Zinc (Zn), % 0 to 2.0
1.0 to 3.0
Residuals, % 0
0 to 0.3