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C42200 Brass vs. A242.0 Aluminum

C42200 brass belongs to the copper alloys classification, while A242.0 aluminum belongs to the aluminum 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 C42200 brass and the bottom bar is A242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
73
Elongation at Break, % 2.0 to 46
1.6
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
27
Tensile Strength: Ultimate (UTS), MPa 300 to 610
220

Thermal Properties

Latent Heat of Fusion, J/g 200
390
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 1040
680
Melting Onset (Solidus), °C 1020
550
Specific Heat Capacity, J/kg-K 380
870
Thermal Conductivity, W/m-K 130
140
Thermal Expansion, µm/m-K 18
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
37
Electrical Conductivity: Equal Weight (Specific), % IACS 32
110

Otherwise Unclassified Properties

Base Metal Price, % relative 29
12
Density, g/cm3 8.6
3.1
Embodied Carbon, kg CO2/kg material 2.7
8.3
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 320
1130

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
45
Strength to Weight: Axial, points 9.5 to 19
20
Strength to Weight: Bending, points 11 to 18
26
Thermal Diffusivity, mm2/s 39
52
Thermal Shock Resistance, points 10 to 21
9.3

Alloy Composition

Aluminum (Al), % 0
89.3 to 93.1
Chromium (Cr), % 0
0.15 to 0.25
Copper (Cu), % 86 to 89
3.7 to 4.5
Iron (Fe), % 0 to 0.050
0 to 0.8
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
1.2 to 1.7
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
1.8 to 2.3
Phosphorus (P), % 0 to 0.35
0
Silicon (Si), % 0
0 to 0.6
Tin (Sn), % 0.8 to 1.4
0
Titanium (Ti), % 0
0.070 to 0.2
Zinc (Zn), % 8.7 to 13.2
0 to 0.1
Residuals, % 0
0 to 0.15