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CC751S Brass vs. 7076 Aluminum

CC751S brass belongs to the copper alloys classification, while 7076 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 CC751S brass and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
160
Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 5.6
6.2
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 450
530
Tensile Strength: Yield (Proof), MPa 320
460

Thermal Properties

Latent Heat of Fusion, J/g 190
380
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 850
630
Melting Onset (Solidus), °C 810
460
Specific Heat Capacity, J/kg-K 390
860
Thermal Conductivity, W/m-K 110
140
Thermal Expansion, µm/m-K 20
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
35
Electrical Conductivity: Equal Weight (Specific), % IACS 28
100

Otherwise Unclassified Properties

Base Metal Price, % relative 24
9.5
Density, g/cm3 8.1
3.0
Embodied Carbon, kg CO2/kg material 2.8
8.0
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 330
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
31
Resilience: Unit (Modulus of Resilience), kJ/m3 480
1510
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
45
Strength to Weight: Axial, points 15
49
Strength to Weight: Bending, points 16
48
Thermal Diffusivity, mm2/s 35
54
Thermal Shock Resistance, points 15
23

Alloy Composition


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Aluminum (Al), % 0 to 0.1
86.9 to 91.2
Antimony (Sb), % 0 to 0.5
0
Copper (Cu), % 62.7 to 66
0.3 to 1.0
Iron (Fe), % 0.25 to 0.5
0 to 0.6
Lead (Pb), % 0.8 to 2.2
0
Magnesium (Mg), % 0
1.2 to 2.0
Manganese (Mn), % 0 to 0.15
0.3 to 0.8
Nickel (Ni), % 0 to 0.8
0
Silicon (Si), % 0.65 to 1.1
0 to 0.4
Tin (Sn), % 0 to 0.8
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 27.9 to 35.6
7.0 to 8.0
Residuals, % 0
0 to 0.15