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851.0 Aluminum vs. C69700 Brass

851.0 aluminum belongs to the aluminum alloys classification, while C69700 brass belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, 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 851.0 aluminum and the bottom bar is C69700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 3.9 to 9.1
25
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 130 to 140
470

Thermal Properties

Latent Heat of Fusion, J/g 410
240
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 630
930
Melting Onset (Solidus), °C 360
880
Specific Heat Capacity, J/kg-K 850
400
Thermal Conductivity, W/m-K 180
43
Thermal Expansion, µm/m-K 23
19

Otherwise Unclassified Properties

Base Metal Price, % relative 14
26
Density, g/cm3 3.1
8.3
Embodied Carbon, kg CO2/kg material 8.4
2.7
Embodied Energy, MJ/kg 160
44
Embodied Water, L/kg 1140
310

Common Calculations

Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 45
19
Strength to Weight: Axial, points 12 to 13
16
Strength to Weight: Bending, points 19 to 20
16
Thermal Diffusivity, mm2/s 69
13
Thermal Shock Resistance, points 6.1 to 6.3
16

Alloy Composition

Aluminum (Al), % 86.6 to 91.5
0
Copper (Cu), % 0.7 to 1.3
75 to 80
Iron (Fe), % 0 to 0.7
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0 to 0.4
Nickel (Ni), % 0.3 to 0.7
0
Silicon (Si), % 2.0 to 3.0
2.5 to 3.5
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0
13.9 to 22
Residuals, % 0
0 to 0.5