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C48200 Brass vs. C90500 Gun Metal

Both C48200 brass and C90500 gun metal are copper alloys. They have 64% 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 C48200 brass and the bottom bar is C90500 gun metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 15 to 40
20
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 400 to 500
320
Tensile Strength: Yield (Proof), MPa 160 to 320
160

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 900
1000
Melting Onset (Solidus), °C 890
850
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 120
75
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
11
Electrical Conductivity: Equal Weight (Specific), % IACS 29
11

Otherwise Unclassified Properties

Base Metal Price, % relative 23
35
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 47
59
Embodied Water, L/kg 330
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61 to 140
54
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 500
110
Stiffness to Weight: Axial, points 7.2
6.9
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 14 to 17
10
Strength to Weight: Bending, points 15 to 17
12
Thermal Diffusivity, mm2/s 38
23
Thermal Shock Resistance, points 13 to 16
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 59 to 62
86 to 89
Iron (Fe), % 0 to 0.1
0 to 0.2
Lead (Pb), % 0.4 to 1.0
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), % 0.5 to 1.0
9.0 to 11
Zinc (Zn), % 35.5 to 40.1
1.0 to 3.0
Residuals, % 0
0 to 0.3