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C69710 Brass vs. 7475 Aluminum

C69710 brass belongs to the copper alloys classification, while 7475 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 C69710 brass and the bottom bar is 7475 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 25
10 to 12
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
26
Shear Strength, MPa 300
320 to 350
Tensile Strength: Ultimate (UTS), MPa 470
530 to 590
Tensile Strength: Yield (Proof), MPa 230
440 to 520

Thermal Properties

Latent Heat of Fusion, J/g 240
380
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 930
640
Melting Onset (Solidus), °C 880
480
Specific Heat Capacity, J/kg-K 400
870
Thermal Conductivity, W/m-K 40
140 to 160
Thermal Expansion, µm/m-K 19
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
33 to 42
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
98 to 120

Otherwise Unclassified Properties

Base Metal Price, % relative 26
10
Density, g/cm3 8.3
3.0
Embodied Carbon, kg CO2/kg material 2.7
8.2
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 310
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
53 to 68
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1390 to 1920
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 19
46
Strength to Weight: Axial, points 16
49 to 55
Strength to Weight: Bending, points 16
48 to 52
Thermal Diffusivity, mm2/s 12
53 to 63
Thermal Shock Resistance, points 16
23 to 26

Alloy Composition

Aluminum (Al), % 0
88.6 to 91.6
Arsenic (As), % 0.030 to 0.060
0
Chromium (Cr), % 0
0.18 to 0.25
Copper (Cu), % 75 to 80
1.2 to 1.9
Iron (Fe), % 0 to 0.2
0 to 0.12
Lead (Pb), % 0.5 to 1.5
0
Magnesium (Mg), % 0
1.9 to 2.6
Manganese (Mn), % 0 to 0.4
0 to 0.060
Silicon (Si), % 2.5 to 3.5
0 to 0.1
Titanium (Ti), % 0
0 to 0.060
Zinc (Zn), % 13.8 to 22
5.1 to 6.2
Residuals, % 0
0 to 0.15