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C19020 Copper vs. C90500 Gun Metal

Both C19020 copper and C90500 gun metal 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 C19020 copper and the bottom bar is C90500 gun metal.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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