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C90500 Gun Metal vs. C26200 Brass

Both C90500 gun metal and C26200 brass are copper alloys. They have 71% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C90500 gun metal and the bottom bar is C26200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 20
3.0 to 180
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 320
330 to 770
Tensile Strength: Yield (Proof), MPa 160
110 to 490

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 1000
950
Melting Onset (Solidus), °C 850
920
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 75
120
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
28
Electrical Conductivity: Equal Weight (Specific), % IACS 11
31

Otherwise Unclassified Properties

Base Metal Price, % relative 35
25
Density, g/cm3 8.7
8.2
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 59
45
Embodied Water, L/kg 390
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
19 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 110
62 to 1110
Stiffness to Weight: Axial, points 6.9
7.2
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 10
11 to 26
Strength to Weight: Bending, points 12
13 to 23
Thermal Diffusivity, mm2/s 23
38
Thermal Shock Resistance, points 12
11 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 86 to 89
67 to 70
Iron (Fe), % 0 to 0.2
0 to 0.050
Lead (Pb), % 0 to 0.3
0 to 0.070
Nickel (Ni), % 0 to 1.0
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
29.6 to 33
Residuals, % 0
0 to 0.3