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C90500 Gun Metal vs. C49300 Brass

Both C90500 gun metal and C49300 brass 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 C90500 gun metal and the bottom bar is C49300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 20
4.5 to 20
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 320
430 to 520
Tensile Strength: Yield (Proof), MPa 160
210 to 410

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 1000
880
Melting Onset (Solidus), °C 850
840
Specific Heat Capacity, J/kg-K 370
380
Thermal Conductivity, W/m-K 75
88
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
15
Electrical Conductivity: Equal Weight (Specific), % IACS 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 35
26
Density, g/cm3 8.7
8.0
Embodied Carbon, kg CO2/kg material 3.6
3.0
Embodied Energy, MJ/kg 59
50
Embodied Water, L/kg 390
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
21 to 71
Resilience: Unit (Modulus of Resilience), kJ/m3 110
220 to 800
Stiffness to Weight: Axial, points 6.9
7.2
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 10
15 to 18
Strength to Weight: Bending, points 12
16 to 18
Thermal Diffusivity, mm2/s 23
29
Thermal Shock Resistance, points 12
14 to 18

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.5
Antimony (Sb), % 0 to 0.2
0 to 0.5
Bismuth (Bi), % 0
0.5 to 2.0
Copper (Cu), % 86 to 89
58 to 62
Iron (Fe), % 0 to 0.2
0 to 0.1
Lead (Pb), % 0 to 0.3
0 to 0.010
Manganese (Mn), % 0
0 to 0.030
Nickel (Ni), % 0 to 1.0
0 to 1.5
Phosphorus (P), % 0 to 1.5
0 to 0.2
Selenium (Se), % 0
0 to 0.2
Silicon (Si), % 0 to 0.0050
0 to 0.1
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 9.0 to 11
1.0 to 1.8
Zinc (Zn), % 1.0 to 3.0
30.6 to 40.5
Residuals, % 0
0 to 0.5