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C87900 Brass vs. 7076 Aluminum

C87900 brass belongs to the copper alloys classification, while 7076 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 C87900 brass and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 25
6.2
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 41
27
Tensile Strength: Ultimate (UTS), MPa 480
530
Tensile Strength: Yield (Proof), MPa 240
460

Thermal Properties

Latent Heat of Fusion, J/g 190
380
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 930
630
Melting Onset (Solidus), °C 900
460
Specific Heat Capacity, J/kg-K 390
860
Thermal Conductivity, W/m-K 120
140
Thermal Expansion, µm/m-K 20
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
35
Electrical Conductivity: Equal Weight (Specific), % IACS 17
100

Otherwise Unclassified Properties

Base Metal Price, % relative 24
9.5
Density, g/cm3 8.1
3.0
Embodied Carbon, kg CO2/kg material 2.7
8.0
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 320
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
31
Resilience: Unit (Modulus of Resilience), kJ/m3 270
1510
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 20
45
Strength to Weight: Axial, points 17
49
Strength to Weight: Bending, points 17
48
Thermal Diffusivity, mm2/s 37
54
Thermal Shock Resistance, points 16
23

Alloy Composition


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Aluminum (Al), % 0 to 0.15
86.9 to 91.2
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
0.3 to 1.0
Iron (Fe), % 0 to 0.4
0 to 0.6
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0
1.2 to 2.0
Manganese (Mn), % 0 to 0.15
0.3 to 0.8
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
0 to 0.4
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 30 to 36
7.0 to 8.0
Residuals, % 0
0 to 0.15