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C38000 Brass vs. A242.0 Aluminum

C38000 brass belongs to the copper alloys classification, while A242.0 aluminum belongs to the aluminum 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 C38000 brass and the bottom bar is A242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
73
Elongation at Break, % 17
1.6
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
27
Tensile Strength: Ultimate (UTS), MPa 380
220

Thermal Properties

Latent Heat of Fusion, J/g 170
390
Maximum Temperature: Mechanical, °C 110
210
Melting Completion (Liquidus), °C 800
680
Melting Onset (Solidus), °C 760
550
Specific Heat Capacity, J/kg-K 380
870
Thermal Conductivity, W/m-K 110
140
Thermal Expansion, µm/m-K 21
23

Otherwise Unclassified Properties

Base Metal Price, % relative 22
12
Density, g/cm3 8.0
3.1
Embodied Carbon, kg CO2/kg material 2.7
8.3
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 330
1130

Common Calculations

Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
45
Strength to Weight: Axial, points 13
20
Strength to Weight: Bending, points 14
26
Thermal Diffusivity, mm2/s 37
52
Thermal Shock Resistance, points 13
9.3

Alloy Composition

Aluminum (Al), % 0 to 0.5
89.3 to 93.1
Chromium (Cr), % 0
0.15 to 0.25
Copper (Cu), % 55 to 60
3.7 to 4.5
Iron (Fe), % 0 to 0.35
0 to 0.8
Lead (Pb), % 1.5 to 2.5
0
Magnesium (Mg), % 0
1.2 to 1.7
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
1.8 to 2.3
Silicon (Si), % 0
0 to 0.6
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0
0.070 to 0.2
Zinc (Zn), % 35.9 to 43.5
0 to 0.1
Residuals, % 0
0 to 0.15