PEEK Machined Parts

Polyether ether ketone (PEEK) is a popular high strength plastic resin, ideal for parts that require strength and stiffness. It has an extremely high resistance to heat, moisture, and chemicals and can withstand multiple cycles in hot water or steam. PEEK also performs well in ultra-high vacuum environments.

PEEK has a machining cost factor of 0.9 when compared to steel 12L14.

Industries & Applications

  • Bearings
  • Bushings
  • Pump components
  • Medical implants
  • Aerospace components

PEEK Characteristics

TEMPER

 

Yield Strength

Ultimate Tensile Strength

Modulus of Elasticity

Brinell Hardness (500kg/10mm)

20% Glass Fiber

 

17

 

1,000

 

30% Glass Fiber

 

23

15

1,500

Rock R - 120

30% Carbon Fiber

 

29

15

3,500

Rock R - 120

Unfilled

 

14

7.3

580

Rock R - 120

Plastic Cost Comparison

Type General Characteristics Alloy Common Applications Tolerances for a 1/2" Dia. Bar Material Cost Factor Machining Cost Factor
Plastics
High strength plastic resin, extremely high resistance to heat, moisture, and chemicals
PEEK
Bearings, Bushings, Pump components, Medical implants, Aerospace components
+0.004-0 71.6 .9

Common Material Cost Comparison

Type General Characteristics Alloy Common Applications Tolerances for a 1/2" Dia. Bar Material Cost Factor Machining Cost Factor
Steel
Designed for excellent machinability. Case hard only
12L14
Endless commercial products; probably more pounds used in turned products than any other bar stock
Cold drawn
0
1 1
Stainless Steel
Designed for machining, non-magnetic
303
Electronic hardware, automotive, aerospace, medical instruments, and many applications requiring corrosion resistance
Cold finished
+/- .002
1.9 2.7
Brass
Strength, corrosion and wear resistance, and excellent machinability
C35300
Well suited for parts with knurling or threading
+0015 3.5 .07
Aluminum
Designed for machining
2011
Electronic hardware, endless commercial products
Cold finish
+/-.0015
3.8 .6
Titanium
High strength, light weight, good bio-compatibility
Ti-6Al-4VEli
Medical implants
Ground & polished
+/-.002
30.2 6

To review our Machining Materials Guide, please click here.

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