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C49300 Brass vs. 7075 Aluminum

C49300 brass belongs to the copper alloys classification, while 7075 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 C49300 brass and the bottom bar is 7075 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 4.5 to 20
1.8 to 12
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
26
Shear Strength, MPa 270 to 290
150 to 340
Tensile Strength: Ultimate (UTS), MPa 430 to 520
240 to 590
Tensile Strength: Yield (Proof), MPa 210 to 410
120 to 510

Thermal Properties

Latent Heat of Fusion, J/g 170
380
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 880
640
Melting Onset (Solidus), °C 840
480
Specific Heat Capacity, J/kg-K 380
870
Thermal Conductivity, W/m-K 88
130
Thermal Expansion, µm/m-K 20
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
33
Electrical Conductivity: Equal Weight (Specific), % IACS 17
98

Otherwise Unclassified Properties

Base Metal Price, % relative 26
10
Density, g/cm3 8.0
3.0
Embodied Carbon, kg CO2/kg material 3.0
8.3
Embodied Energy, MJ/kg 50
150
Embodied Water, L/kg 370
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 71
7.8 to 44
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 800
110 to 1870
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
46
Strength to Weight: Axial, points 15 to 18
22 to 54
Strength to Weight: Bending, points 16 to 18
28 to 52
Thermal Diffusivity, mm2/s 29
50
Thermal Shock Resistance, points 14 to 18
10 to 25

Alloy Composition

Aluminum (Al), % 0 to 0.5
86.9 to 91.4
Antimony (Sb), % 0 to 0.5
0
Bismuth (Bi), % 0.5 to 2.0
0
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 58 to 62
1.2 to 2.0
Iron (Fe), % 0 to 0.1
0 to 0.5
Lead (Pb), % 0 to 0.010
0
Magnesium (Mg), % 0
2.1 to 2.9
Manganese (Mn), % 0 to 0.030
0 to 0.3
Nickel (Ni), % 0 to 1.5
0
Phosphorus (P), % 0 to 0.2
0
Selenium (Se), % 0 to 0.2
0
Silicon (Si), % 0 to 0.1
0 to 0.4
Tin (Sn), % 1.0 to 1.8
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 30.6 to 40.5
5.1 to 6.1
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15