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C90500 Gun Metal vs. C19020 Copper

Both C90500 gun metal and C19020 copper are copper alloys. They have 89% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C90500 gun metal and the bottom bar is C19020 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 20
2.3 to 5.7
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 320
440 to 590

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 1000
1090
Melting Onset (Solidus), °C 850
1030
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 75
190
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
50
Electrical Conductivity: Equal Weight (Specific), % IACS 11
50

Otherwise Unclassified Properties

Base Metal Price, % relative 35
31
Density, g/cm3 8.7
8.9
Embodied Carbon, kg CO2/kg material 3.6
2.8
Embodied Energy, MJ/kg 59
44
Embodied Water, L/kg 390
310

Common Calculations

Stiffness to Weight: Axial, points 6.9
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 10
14 to 18
Strength to Weight: Bending, points 12
14 to 18
Thermal Diffusivity, mm2/s 23
55
Thermal Shock Resistance, points 12
16 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 86 to 89
95.7 to 99.19
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.3
0
Nickel (Ni), % 0 to 1.0
0.5 to 3.0
Phosphorus (P), % 0 to 1.5
0.010 to 0.2
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 9.0 to 11
0.3 to 0.9
Zinc (Zn), % 1.0 to 3.0
0
Residuals, % 0
0 to 0.2