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705.0 Aluminum vs. CC751S Brass

705.0 aluminum belongs to the aluminum alloys classification, while CC751S brass belongs to the copper 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 705.0 aluminum and the bottom bar is CC751S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62 to 65
130
Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 8.4 to 10
5.6
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 240 to 260
450
Tensile Strength: Yield (Proof), MPa 130
320

Thermal Properties

Latent Heat of Fusion, J/g 390
190
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 640
850
Melting Onset (Solidus), °C 610
810
Specific Heat Capacity, J/kg-K 890
390
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 24
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
25
Electrical Conductivity: Equal Weight (Specific), % IACS 110
28

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
24
Density, g/cm3 2.8
8.1
Embodied Carbon, kg CO2/kg material 8.4
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1170
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 20
23
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 130
480
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 49
19
Strength to Weight: Axial, points 24 to 26
15
Strength to Weight: Bending, points 31 to 32
16
Thermal Diffusivity, mm2/s 55
35
Thermal Shock Resistance, points 11
15

Alloy Composition

Aluminum (Al), % 92.3 to 98.6
0 to 0.1
Antimony (Sb), % 0
0 to 0.5
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0 to 0.2
62.7 to 66
Iron (Fe), % 0 to 0.8
0.25 to 0.5
Lead (Pb), % 0
0.8 to 2.2
Magnesium (Mg), % 1.4 to 1.8
0
Manganese (Mn), % 0 to 0.6
0 to 0.15
Nickel (Ni), % 0
0 to 0.8
Silicon (Si), % 0 to 0.2
0.65 to 1.1
Tin (Sn), % 0
0 to 0.8
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 3.3
27.9 to 35.6
Residuals, % 0 to 0.15
0