MakeItFrom.com
Menu (ESC)

C90500 Gun Metal vs. C86300 Bronze

Both C90500 gun metal and C86300 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 66% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C90500 gun metal and the bottom bar is C86300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 280
430
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 20
14
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 320
850
Tensile Strength: Yield (Proof), MPa 160
480

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 1000
920
Melting Onset (Solidus), °C 850
890
Specific Heat Capacity, J/kg-K 370
420
Thermal Conductivity, W/m-K 75
35
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 11
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 35
23
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 3.6
3.0
Embodied Energy, MJ/kg 59
51
Embodied Water, L/kg 390
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
100
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1030
Stiffness to Weight: Axial, points 6.9
7.8
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 10
30
Strength to Weight: Bending, points 12
25
Thermal Diffusivity, mm2/s 23
11
Thermal Shock Resistance, points 12
28

Alloy Composition

Aluminum (Al), % 0 to 0.0050
5.0 to 7.5
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 86 to 89
60 to 66
Iron (Fe), % 0 to 0.2
2.0 to 4.0
Lead (Pb), % 0 to 0.3
0 to 0.2
Manganese (Mn), % 0
2.5 to 5.0
Nickel (Ni), % 0 to 1.0
0 to 1.0
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 to 0.2
Zinc (Zn), % 1.0 to 3.0
22 to 28
Residuals, % 0
0 to 1.0