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3003 Aluminum vs. CAP

3003 aluminum and CAP belong to fundamentally different material chemistries. 3003 aluminum is a metal, while CAP is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 11 material properties with values for both materials. Properties with values for just one material (32, 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 3003 aluminum and the bottom bar is CAP.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 1.1 to 28
35 to 50
Tensile Strength: Ultimate (UTS), MPa 110 to 240
28 to 45
Tensile Strength: Yield (Proof), MPa 40 to 210
22 to 40

Thermal Properties

Specific Heat Capacity, J/kg-K 900
1480
Thermal Conductivity, W/m-K 180
0.25
Thermal Expansion, µm/m-K 23
14

Otherwise Unclassified Properties

Density, g/cm3 2.8
1.2

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 0.95 to 63
9.1 to 22
Strength to Weight: Axial, points 11 to 24
6.5 to 10
Strength to Weight: Bending, points 18 to 30
17 to 23
Thermal Diffusivity, mm2/s 71
0.14