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A242.0 Aluminum vs. C84100 Brass

A242.0 aluminum belongs to the aluminum alloys classification, while C84100 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (3, 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 A242.0 aluminum and the bottom bar is C84100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
65
Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 1.6
13
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
39
Tensile Strength: Ultimate (UTS), MPa 220
230

Thermal Properties

Latent Heat of Fusion, J/g 390
190
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 680
1000
Melting Onset (Solidus), °C 550
810
Specific Heat Capacity, J/kg-K 870
380
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
23
Electrical Conductivity: Equal Weight (Specific), % IACS 110
25

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 3.1
8.5
Embodied Carbon, kg CO2/kg material 8.3
2.9
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1130
340

Common Calculations

Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 45
19
Strength to Weight: Axial, points 20
7.4
Strength to Weight: Bending, points 26
9.7
Thermal Diffusivity, mm2/s 52
33
Thermal Shock Resistance, points 9.3
7.8

Alloy Composition

Aluminum (Al), % 89.3 to 93.1
0 to 0.010
Antimony (Sb), % 0
0 to 0.050
Bismuth (Bi), % 0
0 to 0.090
Chromium (Cr), % 0.15 to 0.25
0
Copper (Cu), % 3.7 to 4.5
78 to 85
Iron (Fe), % 0 to 0.8
0 to 0.3
Lead (Pb), % 0
0.050 to 0.25
Magnesium (Mg), % 1.2 to 1.7
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 1.8 to 2.3
0 to 0.5
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.6
0 to 0.010
Tin (Sn), % 0
1.5 to 4.5
Titanium (Ti), % 0.070 to 0.2
0
Zinc (Zn), % 0 to 0.1
12 to 20
Residuals, % 0
0 to 0.5