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C86100 Bronze vs. C90500 Gun Metal

Both C86100 bronze and C90500 gun metal are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 69% of their average alloy composition in common. There are 28 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 C86100 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, % 20
20
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 660
320
Tensile Strength: Yield (Proof), MPa 350
160

Thermal Properties

Latent Heat of Fusion, J/g 200
190
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 940
1000
Melting Onset (Solidus), °C 900
850
Specific Heat Capacity, J/kg-K 420
370
Thermal Conductivity, W/m-K 35
75
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
35
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 2.9
3.6
Embodied Energy, MJ/kg 49
59
Embodied Water, L/kg 350
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
54
Resilience: Unit (Modulus of Resilience), kJ/m3 530
110
Stiffness to Weight: Axial, points 7.8
6.9
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 23
10
Strength to Weight: Bending, points 21
12
Thermal Diffusivity, mm2/s 10
23
Thermal Shock Resistance, points 21
12

Alloy Composition

Aluminum (Al), % 4.5 to 5.5
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 66 to 68
86 to 89
Iron (Fe), % 2.0 to 4.0
0 to 0.2
Lead (Pb), % 0 to 0.1
0 to 0.3
Manganese (Mn), % 2.5 to 5.0
0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.1
9.0 to 11
Zinc (Zn), % 17.3 to 25
1.0 to 3.0
Residuals, % 0
0 to 0.3