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C85800 Brass vs. 7475 Aluminum

C85800 brass belongs to the copper alloys classification, while 7475 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is C85800 brass and the bottom bar is 7475 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 15
10 to 12
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 380
530 to 590
Tensile Strength: Yield (Proof), MPa 210
440 to 520

Thermal Properties

Latent Heat of Fusion, J/g 170
380
Maximum Temperature: Mechanical, °C 120
180
Melting Completion (Liquidus), °C 900
640
Melting Onset (Solidus), °C 870
480
Specific Heat Capacity, J/kg-K 380
870
Thermal Conductivity, W/m-K 84
140 to 160
Thermal Expansion, µm/m-K 20
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
33 to 42
Electrical Conductivity: Equal Weight (Specific), % IACS 22
98 to 120

Otherwise Unclassified Properties

Base Metal Price, % relative 24
10
Density, g/cm3 8.0
3.0
Embodied Carbon, kg CO2/kg material 2.8
8.2
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 330
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
53 to 68
Resilience: Unit (Modulus of Resilience), kJ/m3 210
1390 to 1920
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 20
46
Strength to Weight: Axial, points 13
49 to 55
Strength to Weight: Bending, points 15
48 to 52
Thermal Diffusivity, mm2/s 27
53 to 63
Thermal Shock Resistance, points 13
23 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.55
88.6 to 91.6
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Chromium (Cr), % 0
0.18 to 0.25
Copper (Cu), % 57 to 69
1.2 to 1.9
Iron (Fe), % 0 to 0.5
0 to 0.12
Lead (Pb), % 0 to 1.5
0
Magnesium (Mg), % 0
1.9 to 2.6
Manganese (Mn), % 0 to 0.25
0 to 0.060
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.25
0 to 0.1
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 1.5
0
Titanium (Ti), % 0
0 to 0.060
Zinc (Zn), % 31 to 41
5.1 to 6.2
Residuals, % 0
0 to 0.15