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C69700 Brass vs. 712.0 Aluminum

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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