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C99750 Brass vs. 2011 Aluminum

C99750 brass belongs to the copper alloys classification, while 2011 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 2011 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
71
Elongation at Break, % 20 to 30
8.5 to 18
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 48
27
Tensile Strength: Ultimate (UTS), MPa 450 to 520
310 to 420
Tensile Strength: Yield (Proof), MPa 220 to 280
140 to 310

Thermal Properties

Latent Heat of Fusion, J/g 200
390
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 840
640
Melting Onset (Solidus), °C 820
540
Specific Heat Capacity, J/kg-K 410
870
Thermal Expansion, µm/m-K 20
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
35 to 45
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
100 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 23
11
Density, g/cm3 8.1
3.1
Embodied Carbon, kg CO2/kg material 3.1
7.9
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 310
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
29 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 300
140 to 680
Stiffness to Weight: Axial, points 8.6
13
Stiffness to Weight: Bending, points 21
44
Strength to Weight: Axial, points 15 to 18
27 to 37
Strength to Weight: Bending, points 16 to 18
32 to 40
Thermal Shock Resistance, points 13 to 15
14 to 19

Alloy Composition

Aluminum (Al), % 0.25 to 3.0
91.3 to 94.6
Bismuth (Bi), % 0
0.2 to 0.6
Copper (Cu), % 55 to 61
5.0 to 6.0
Iron (Fe), % 0 to 1.0
0 to 0.7
Lead (Pb), % 0.5 to 2.5
0.2 to 0.6
Manganese (Mn), % 17 to 23
0
Nickel (Ni), % 0 to 5.0
0
Silicon (Si), % 0
0 to 0.4
Zinc (Zn), % 17 to 23
0 to 0.3
Residuals, % 0
0 to 0.15