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C90500 Gun Metal vs. CR009A Copper

Both C90500 gun metal and CR009A copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. 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 (3, in this case) are not shown.

For each property being compared, the top bar is C90500 gun metal and the bottom bar is CR009A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 20
15
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 320
230
Tensile Strength: Yield (Proof), MPa 160
140

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
1040
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 75
380
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
100
Electrical Conductivity: Equal Weight (Specific), % IACS 11
100

Otherwise Unclassified Properties

Base Metal Price, % relative 35
31
Density, g/cm3 8.7
9.0
Embodied Carbon, kg CO2/kg material 3.6
2.6
Embodied Energy, MJ/kg 59
41
Embodied Water, L/kg 390
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
31
Resilience: Unit (Modulus of Resilience), kJ/m3 110
83
Stiffness to Weight: Axial, points 6.9
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 10
7.1
Strength to Weight: Bending, points 12
9.3
Thermal Diffusivity, mm2/s 23
110
Thermal Shock Resistance, points 12
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0 to 0.00040
Arsenic (As), % 0
0 to 0.00050
Bismuth (Bi), % 0
0 to 0.00020
Cadmium (Cd), % 0
0 to 0.00010
Copper (Cu), % 86 to 89
99.99 to 100
Iron (Fe), % 0 to 0.2
0 to 0.0010
Lead (Pb), % 0 to 0.3
0 to 0.00050
Manganese (Mn), % 0
0 to 0.00050
Nickel (Ni), % 0 to 1.0
0 to 0.0010
Phosphorus (P), % 0 to 1.5
0 to 0.0030
Selenium (Se), % 0
0 to 0.00020
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
0 to 0.0025
Sulfur (S), % 0 to 0.050
0 to 0.0015
Tellurium (Te), % 0
0 to 0.00020
Tin (Sn), % 9.0 to 11
0 to 0.00020
Zinc (Zn), % 1.0 to 3.0
0 to 0.00010
Residuals, % 0 to 0.3
0