PEEK vs. R60901 Alloy
PEEK and R60901 alloy belong to fundamentally different material chemistries. PEEK is a polymeric material, while R60901 alloy is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 13 material properties with values for both materials. Properties with values for just one material (23, 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 PEEK and the bottom bar is R60901 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 4.0 to 24 | |
98 |
Elongation at Break, % | 1.6 to 43 | |
17 to 22 |
Tensile Strength: Ultimate (UTS), MPa | 97 to 200 | |
500 to 580 |
Thermal Properties
Specific Heat Capacity, J/kg-K | 1390 to 1700 | |
270 |
Thermal Conductivity, W/m-K | 0.25 to 0.93 | |
17 |
Thermal Expansion, µm/m-K | 15 to 52 | |
6.3 |
Otherwise Unclassified Properties
Density, g/cm3 | 1.3 to 1.5 | |
6.6 |
Common Calculations
Stiffness to Weight: Axial, points | 1.5 to 10 | |
8.3 |
Stiffness to Weight: Bending, points | 36 to 73 | |
23 |
Strength to Weight: Axial, points | 20 to 41 | |
21 to 25 |
Strength to Weight: Bending, points | 36 to 55 | |
21 to 24 |
Thermal Diffusivity, mm2/s | 0.1 to 0.51 | |
9.7 |
Thermal Shock Resistance, points | 34 to 57 | |
58 to 67 |