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30 GF PBT vs. 6061 Aluminum

30 GF PBT and 6061 aluminum belong to fundamentally different material chemistries. 30 GF PBT is a polymeric material, while 6061 aluminum is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 10 material properties with values for both materials. Properties with values for just one material (29, in this case) are not shown.

For each property being compared, the top bar is 30 GF PBT and the bottom bar is 6061 aluminum.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.5
2.7
Elastic (Young's, Tensile) Modulus, GPa 8.7
69
Elongation at Break, % 2.5
3.4 to 20
Melting Onset (Solidus), °C 230
580
Specific Heat Capacity, J/kg-K 1040
900
Stiffness to Weight: Axial, points 3.2
14
Stiffness to Weight: Bending, points 45
50
Strength to Weight: Axial, points 25
13 to 42
Strength to Weight: Bending, points 38
21 to 45
Tensile Strength: Ultimate (UTS), MPa 140
130 to 410