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712.0 Aluminum vs. C69700 Brass

712.0 aluminum belongs to the aluminum alloys classification, while C69700 brass belongs to the copper 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 712.0 aluminum and the bottom bar is C69700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 4.5 to 4.7
25
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 27
41
Shear Strength, MPa 180
300
Tensile Strength: Ultimate (UTS), MPa 250 to 260
470
Tensile Strength: Yield (Proof), MPa 180 to 200
230

Thermal Properties

Latent Heat of Fusion, J/g 380
240
Maximum Temperature: Mechanical, °C 190
160
Melting Completion (Liquidus), °C 640
930
Melting Onset (Solidus), °C 610
880
Specific Heat Capacity, J/kg-K 870
400
Thermal Conductivity, W/m-K 160
43
Thermal Expansion, µm/m-K 24
19

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 3.0
8.3
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1140
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
99
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 270
250
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 24 to 25
16
Strength to Weight: Bending, points 30 to 31
16
Thermal Diffusivity, mm2/s 62
13
Thermal Shock Resistance, points 11
16

Alloy Composition

Aluminum (Al), % 90.7 to 94
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0 to 0.25
75 to 80
Iron (Fe), % 0 to 0.5
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Magnesium (Mg), % 0.5 to 0.65
0
Manganese (Mn), % 0 to 0.1
0 to 0.4
Silicon (Si), % 0 to 0.3
2.5 to 3.5
Titanium (Ti), % 0.15 to 0.25
0
Zinc (Zn), % 5.0 to 6.5
13.9 to 22
Residuals, % 0
0 to 0.5