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C90500 Gun Metal vs. C82200 Copper

Both C90500 gun metal and C82200 copper are copper alloys. They have 88% of their average alloy composition in common. There are 28 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 C90500 gun metal and the bottom bar is C82200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 20
8.0 to 20
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 320
390 to 660
Tensile Strength: Yield (Proof), MPa 160
210 to 520

Thermal Properties

Latent Heat of Fusion, J/g 190
220
Maximum Temperature: Mechanical, °C 170
230
Melting Completion (Liquidus), °C 1000
1080
Melting Onset (Solidus), °C 850
1040
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 75
180
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
45
Electrical Conductivity: Equal Weight (Specific), % IACS 11
46

Otherwise Unclassified Properties

Base Metal Price, % relative 35
55
Density, g/cm3 8.7
8.9
Embodied Carbon, kg CO2/kg material 3.6
4.8
Embodied Energy, MJ/kg 59
74
Embodied Water, L/kg 390
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
49 to 66
Resilience: Unit (Modulus of Resilience), kJ/m3 110
180 to 1130
Stiffness to Weight: Axial, points 6.9
7.4
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 10
12 to 20
Strength to Weight: Bending, points 12
13 to 19
Thermal Diffusivity, mm2/s 23
53
Thermal Shock Resistance, points 12
14 to 23

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Beryllium (Be), % 0
0.35 to 0.8
Cobalt (Co), % 0
0 to 0.3
Copper (Cu), % 86 to 89
97.4 to 98.7
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.3
0
Nickel (Ni), % 0 to 1.0
1.0 to 2.0
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
Zinc (Zn), % 1.0 to 3.0
0
Residuals, % 0
0 to 0.5