MakeItFrom.com
Menu (ESC)

2018 Aluminum vs. C99400 Brass

2018 aluminum belongs to the aluminum alloys classification, while C99400 brass belongs to the copper alloys. There are 24 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 2018 aluminum and the bottom bar is C99400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
120
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
44
Tensile Strength: Ultimate (UTS), MPa 420
460 to 550
Tensile Strength: Yield (Proof), MPa 310
230 to 370

Thermal Properties

Latent Heat of Fusion, J/g 390
230
Maximum Temperature: Mechanical, °C 220
200
Melting Completion (Liquidus), °C 640
1070
Melting Onset (Solidus), °C 510
1020
Specific Heat Capacity, J/kg-K 870
400
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
17
Electrical Conductivity: Equal Weight (Specific), % IACS 120
17

Otherwise Unclassified Properties

Base Metal Price, % relative 11
30
Density, g/cm3 3.1
8.7
Embodied Carbon, kg CO2/kg material 8.1
2.8
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1130
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 670
230 to 590
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 45
19
Strength to Weight: Axial, points 38
15 to 17
Strength to Weight: Bending, points 41
15 to 17
Thermal Shock Resistance, points 19
16 to 19

Alloy Composition

Aluminum (Al), % 89.7 to 94.4
0.5 to 2.0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
83.5 to 96.5
Iron (Fe), % 0 to 1.0
1.0 to 3.0
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.2
0 to 0.5
Nickel (Ni), % 1.7 to 2.3
1.0 to 3.5
Silicon (Si), % 0 to 0.9
0.5 to 2.0
Zinc (Zn), % 0 to 0.25
0.5 to 5.0
Residuals, % 0
0 to 0.3