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30 GF PEEK vs. 6061 Aluminum

30 GF PEEK and 6061 aluminum belong to fundamentally different material chemistries. 30 GF PEEK 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 16 material properties with values for both materials. Properties with values for just one material (31, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 10
69
Elongation at Break, % 2.1
3.4 to 20
Shear Strength, MPa 100
84 to 210
Tensile Strength: Ultimate (UTS), MPa 160
130 to 410

Thermal Properties

Maximum Temperature: Mechanical, °C 330
170
Melting Onset (Solidus), °C 340
580
Specific Heat Capacity, J/kg-K 1490
900
Thermal Conductivity, W/m-K 0.43
170
Thermal Expansion, µm/m-K 21
24

Otherwise Unclassified Properties

Density, g/cm3 1.5
2.7

Common Calculations

Stiffness to Weight: Axial, points 3.7
14
Stiffness to Weight: Bending, points 48
50
Strength to Weight: Axial, points 31
13 to 42
Strength to Weight: Bending, points 45
21 to 45
Thermal Diffusivity, mm2/s 0.2
68
Thermal Shock Resistance, points 57
5.7 to 18