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851.0 Aluminum vs. C42200 Brass

851.0 aluminum belongs to the aluminum alloys classification, while C42200 brass belongs to the copper alloys. There are 25 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 C42200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 3.9 to 9.1
2.0 to 46
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 130 to 140
300 to 610

Thermal Properties

Latent Heat of Fusion, J/g 410
200
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 630
1040
Melting Onset (Solidus), °C 360
1020
Specific Heat Capacity, J/kg-K 850
380
Thermal Conductivity, W/m-K 180
130
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
31
Electrical Conductivity: Equal Weight (Specific), % IACS 140
32

Otherwise Unclassified Properties

Base Metal Price, % relative 14
29
Density, g/cm3 3.1
8.6
Embodied Carbon, kg CO2/kg material 8.4
2.7
Embodied Energy, MJ/kg 160
44
Embodied Water, L/kg 1140
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 45
19
Strength to Weight: Axial, points 12 to 13
9.5 to 19
Strength to Weight: Bending, points 19 to 20
11 to 18
Thermal Diffusivity, mm2/s 69
39
Thermal Shock Resistance, points 6.1 to 6.3
10 to 21

Alloy Composition

Aluminum (Al), % 86.6 to 91.5
0
Copper (Cu), % 0.7 to 1.3
86 to 89
Iron (Fe), % 0 to 0.7
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0.3 to 0.7
0
Phosphorus (P), % 0
0 to 0.35
Silicon (Si), % 2.0 to 3.0
0
Tin (Sn), % 5.5 to 7.0
0.8 to 1.4
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0
8.7 to 13.2
Residuals, % 0
0 to 0.5