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C90500 Gun Metal vs. C95500 Bronze

Both C90500 gun metal and C95500 bronze are copper alloys. They have 82% 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 C95500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 20
8.4 to 10
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 320
700 to 850
Tensile Strength: Yield (Proof), MPa 160
320 to 470

Thermal Properties

Latent Heat of Fusion, J/g 190
230
Maximum Temperature: Mechanical, °C 170
230
Melting Completion (Liquidus), °C 1000
1050
Melting Onset (Solidus), °C 850
1040
Specific Heat Capacity, J/kg-K 370
450
Thermal Conductivity, W/m-K 75
42
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 35
28
Density, g/cm3 8.7
8.2
Embodied Carbon, kg CO2/kg material 3.6
3.5
Embodied Energy, MJ/kg 59
57
Embodied Water, L/kg 390
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
58 to 61
Resilience: Unit (Modulus of Resilience), kJ/m3 110
420 to 950
Stiffness to Weight: Axial, points 6.9
8.0
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 10
24 to 29
Strength to Weight: Bending, points 12
21 to 24
Thermal Diffusivity, mm2/s 23
11
Thermal Shock Resistance, points 12
24 to 29

Alloy Composition

Aluminum (Al), % 0 to 0.0050
10 to 11.5
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 86 to 89
78 to 84
Iron (Fe), % 0 to 0.2
3.0 to 5.0
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0
0 to 3.5
Nickel (Ni), % 0 to 1.0
3.0 to 5.5
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 9.0 to 11
0
Zinc (Zn), % 1.0 to 3.0
0
Residuals, % 0
0 to 0.5