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C43500 Brass vs. C90500 Gun Metal

Both C43500 brass and C90500 gun metal are copper alloys. They have 84% 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 C43500 brass and the bottom bar is C90500 gun metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 8.5 to 46
20
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 320 to 530
320
Tensile Strength: Yield (Proof), MPa 120 to 480
160

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 1000
1000
Melting Onset (Solidus), °C 970
850
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 120
75
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
11
Electrical Conductivity: Equal Weight (Specific), % IACS 30
11

Otherwise Unclassified Properties

Base Metal Price, % relative 28
35
Density, g/cm3 8.5
8.7
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 45
59
Embodied Water, L/kg 320
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 120
54
Resilience: Unit (Modulus of Resilience), kJ/m3 65 to 1040
110
Stiffness to Weight: Axial, points 7.2
6.9
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 10 to 17
10
Strength to Weight: Bending, points 12 to 17
12
Thermal Diffusivity, mm2/s 37
23
Thermal Shock Resistance, points 11 to 18
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 79 to 83
86 to 89
Iron (Fe), % 0 to 0.050
0 to 0.2
Lead (Pb), % 0 to 0.090
0 to 0.3
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0.6 to 1.2
9.0 to 11
Zinc (Zn), % 15.4 to 20.4
1.0 to 3.0
Residuals, % 0
0 to 0.3