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C99750 Brass vs. 7076 Aluminum

C99750 brass belongs to the copper alloys classification, while 7076 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 C99750 brass and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 120
160
Elastic (Young's, Tensile) Modulus, GPa 130
70
Elongation at Break, % 20 to 30
6.2
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 48
27
Tensile Strength: Ultimate (UTS), MPa 450 to 520
530
Tensile Strength: Yield (Proof), MPa 220 to 280
460

Thermal Properties

Latent Heat of Fusion, J/g 200
380
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 840
630
Melting Onset (Solidus), °C 820
460
Specific Heat Capacity, J/kg-K 410
860
Thermal Expansion, µm/m-K 20
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
100

Otherwise Unclassified Properties

Base Metal Price, % relative 23
9.5
Density, g/cm3 8.1
3.0
Embodied Carbon, kg CO2/kg material 3.1
8.0
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 310
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
31
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 300
1510
Stiffness to Weight: Axial, points 8.6
13
Stiffness to Weight: Bending, points 21
45
Strength to Weight: Axial, points 15 to 18
49
Strength to Weight: Bending, points 16 to 18
48
Thermal Shock Resistance, points 13 to 15
23

Alloy Composition

Aluminum (Al), % 0.25 to 3.0
86.9 to 91.2
Copper (Cu), % 55 to 61
0.3 to 1.0
Iron (Fe), % 0 to 1.0
0 to 0.6
Lead (Pb), % 0.5 to 2.5
0
Magnesium (Mg), % 0
1.2 to 2.0
Manganese (Mn), % 17 to 23
0.3 to 0.8
Nickel (Ni), % 0 to 5.0
0
Silicon (Si), % 0
0 to 0.4
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 17 to 23
7.0 to 8.0
Residuals, % 0
0 to 0.15