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A242.0 Aluminum vs. C84000 Brass

A242.0 aluminum belongs to the aluminum alloys classification, while C84000 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 C84000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
65
Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 1.6
27
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
42
Tensile Strength: Ultimate (UTS), MPa 220
250

Thermal Properties

Latent Heat of Fusion, J/g 390
190
Maximum Temperature: Mechanical, °C 210
170
Melting Completion (Liquidus), °C 680
1040
Melting Onset (Solidus), °C 550
940
Specific Heat Capacity, J/kg-K 870
380
Thermal Conductivity, W/m-K 140
72
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
16
Electrical Conductivity: Equal Weight (Specific), % IACS 110
17

Otherwise Unclassified Properties

Base Metal Price, % relative 12
30
Density, g/cm3 3.1
8.6
Embodied Carbon, kg CO2/kg material 8.3
3.0
Embodied Energy, MJ/kg 150
49
Embodied Water, L/kg 1130
330

Common Calculations

Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 45
19
Strength to Weight: Axial, points 20
8.2
Strength to Weight: Bending, points 26
10
Thermal Diffusivity, mm2/s 52
22
Thermal Shock Resistance, points 9.3
9.0

Alloy Composition

Aluminum (Al), % 89.3 to 93.1
0 to 0.0050
Antimony (Sb), % 0
0 to 0.020
Boron (B), % 0
0 to 0.1
Chromium (Cr), % 0.15 to 0.25
0
Copper (Cu), % 3.7 to 4.5
82 to 89
Iron (Fe), % 0 to 0.8
0 to 0.4
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 1.2 to 1.7
0
Manganese (Mn), % 0 to 0.1
0 to 0.010
Nickel (Ni), % 1.8 to 2.3
0.5 to 2.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.6
0 to 0.0050
Sulfur (S), % 0
0.1 to 0.65
Tin (Sn), % 0
2.0 to 4.0
Titanium (Ti), % 0.070 to 0.2
0
Zinc (Zn), % 0 to 0.1
5.0 to 14
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.7