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C91300 Bell Metal vs. C90500 Gun Metal

Both C91300 bell metal and C90500 gun metal are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 92% of their average alloy composition in common. There are 27 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 C91300 bell metal and the bottom bar is C90500 gun metal.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 190
280
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 0.5
20
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 38
40
Tensile Strength: Ultimate (UTS), MPa 240
320
Tensile Strength: Yield (Proof), MPa 210
160

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 150
170
Melting Completion (Liquidus), °C 890
1000
Melting Onset (Solidus), °C 820
850
Specific Heat Capacity, J/kg-K 360
370
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
11

Otherwise Unclassified Properties

Base Metal Price, % relative 39
35
Density, g/cm3 8.6
8.7
Embodied Carbon, kg CO2/kg material 4.5
3.6
Embodied Energy, MJ/kg 74
59
Embodied Water, L/kg 460
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.1
54
Resilience: Unit (Modulus of Resilience), kJ/m3 210
110
Stiffness to Weight: Axial, points 6.6
6.9
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.8
10
Strength to Weight: Bending, points 10
12
Thermal Shock Resistance, points 9.3
12

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.2
0 to 0.2
Copper (Cu), % 79 to 82
86 to 89
Iron (Fe), % 0 to 0.25
0 to 0.2
Lead (Pb), % 0 to 0.25
0 to 0.3
Nickel (Ni), % 0 to 0.5
0 to 1.0
Phosphorus (P), % 0 to 1.5
0 to 1.5
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.050
0 to 0.050
Tin (Sn), % 18 to 20
9.0 to 11
Zinc (Zn), % 0 to 0.25
1.0 to 3.0
Residuals, % 0 to 0.6
0 to 0.3