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C46200 Brass vs. 8021 Aluminum

C46200 brass belongs to the copper alloys classification, while 8021 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, 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 C46200 brass and the bottom bar is 8021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 17 to 34
2.3
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 370 to 480
160
Tensile Strength: Yield (Proof), MPa 120 to 290
130

Thermal Properties

Latent Heat of Fusion, J/g 170
400
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 840
650
Melting Onset (Solidus), °C 800
640
Specific Heat Capacity, J/kg-K 380
900
Thermal Conductivity, W/m-K 110
220
Thermal Expansion, µm/m-K 20
23

Otherwise Unclassified Properties

Base Metal Price, % relative 24
9.0
Density, g/cm3 8.1
2.8
Embodied Carbon, kg CO2/kg material 2.7
8.1
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 330
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 100
3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 72 to 400
130
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
49
Strength to Weight: Axial, points 13 to 16
16
Strength to Weight: Bending, points 14 to 17
23
Thermal Diffusivity, mm2/s 35
88
Thermal Shock Resistance, points 12 to 16
7.0

Alloy Composition

Aluminum (Al), % 0
98 to 98.8
Copper (Cu), % 62 to 65
0 to 0.050
Iron (Fe), % 0 to 0.1
1.2 to 1.7
Lead (Pb), % 0 to 0.2
0
Silicon (Si), % 0
0 to 0.15
Tin (Sn), % 0.5 to 1.0
0
Zinc (Zn), % 33.3 to 37.5
0
Residuals, % 0
0 to 0.15