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707.0 Aluminum vs. C68300 Brass

707.0 aluminum belongs to the aluminum alloys classification, while C68300 brass belongs to the copper 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 707.0 aluminum and the bottom bar is C68300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 1.7 to 3.4
15
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 270 to 300
430
Tensile Strength: Yield (Proof), MPa 170 to 250
260

Thermal Properties

Latent Heat of Fusion, J/g 380
180
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 630
900
Melting Onset (Solidus), °C 600
890
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 24
20

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.9
8.0
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1140
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3 to 8.6
56
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 430
330
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 26 to 29
15
Strength to Weight: Bending, points 32 to 34
16
Thermal Diffusivity, mm2/s 58
38
Thermal Shock Resistance, points 12 to 13
14

Alloy Composition

Aluminum (Al), % 90.5 to 93.6
0
Antimony (Sb), % 0
0.3 to 1.0
Cadmium (Cd), % 0
0 to 0.010
Chromium (Cr), % 0.2 to 0.4
0
Copper (Cu), % 0 to 0.2
59 to 63
Iron (Fe), % 0 to 0.8
0
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 1.8 to 2.4
0
Manganese (Mn), % 0.4 to 0.6
0
Silicon (Si), % 0 to 0.2
0.3 to 1.0
Tin (Sn), % 0
0.050 to 0.2
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 4.0 to 4.5
34.2 to 40.4
Residuals, % 0
0 to 0.5