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C99400 Brass vs. 7005 Aluminum

C99400 brass belongs to the copper alloys classification, while 7005 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 C99400 brass and the bottom bar is 7005 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
70
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
26
Tensile Strength: Ultimate (UTS), MPa 460 to 550
200 to 400
Tensile Strength: Yield (Proof), MPa 230 to 370
95 to 350

Thermal Properties

Latent Heat of Fusion, J/g 230
380
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 1070
640
Melting Onset (Solidus), °C 1020
610
Specific Heat Capacity, J/kg-K 400
880
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
35 to 43
Electrical Conductivity: Equal Weight (Specific), % IACS 17
110 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 30
9.5
Density, g/cm3 8.7
2.9
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 310
1150

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 590
65 to 850
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 19
47
Strength to Weight: Axial, points 15 to 17
19 to 38
Strength to Weight: Bending, points 15 to 17
26 to 41
Thermal Shock Resistance, points 16 to 19
8.7 to 18

Alloy Composition

Aluminum (Al), % 0.5 to 2.0
91 to 94.7
Chromium (Cr), % 0
0.060 to 0.2
Copper (Cu), % 83.5 to 96.5
0 to 0.1
Iron (Fe), % 1.0 to 3.0
0 to 0.4
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0
1.0 to 1.8
Manganese (Mn), % 0 to 0.5
0.2 to 0.7
Nickel (Ni), % 1.0 to 3.5
0
Silicon (Si), % 0.5 to 2.0
0 to 0.35
Titanium (Ti), % 0
0.010 to 0.060
Zinc (Zn), % 0.5 to 5.0
4.0 to 5.0
Zirconium (Zr), % 0
0.080 to 0.2
Residuals, % 0
0 to 0.15