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C90500 Gun Metal vs. C95300 Bronze

Both C90500 gun metal and C95300 bronze are copper alloys. They have 88% 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 C95300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 20
14 to 25
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 320
520 to 610
Tensile Strength: Yield (Proof), MPa 160
190 to 310

Thermal Properties

Latent Heat of Fusion, J/g 190
230
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 1000
1050
Melting Onset (Solidus), °C 850
1040
Specific Heat Capacity, J/kg-K 370
440
Thermal Conductivity, W/m-K 75
63
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
13
Electrical Conductivity: Equal Weight (Specific), % IACS 11
14

Otherwise Unclassified Properties

Base Metal Price, % relative 35
28
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 3.6
3.1
Embodied Energy, MJ/kg 59
52
Embodied Water, L/kg 390
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
73 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 110
170 to 420
Stiffness to Weight: Axial, points 6.9
7.5
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 10
17 to 21
Strength to Weight: Bending, points 12
17 to 19
Thermal Diffusivity, mm2/s 23
17
Thermal Shock Resistance, points 12
19 to 22

Alloy Composition

Aluminum (Al), % 0 to 0.0050
9.0 to 11
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 86 to 89
86.5 to 90.2
Iron (Fe), % 0 to 0.2
0.8 to 1.5
Lead (Pb), % 0 to 0.3
0
Nickel (Ni), % 0 to 1.0
0
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 1.0