PTFE & Teflon Machined Parts

PTFE & Teflon Machining

PTFE (more commonly known as Teflon) is an extremely resilient plastic, ideal for parts that require high impact strength and durability. It has excellent resistance to frictional wear, weathering, flame, heat, chemical, and radiation. Unlike nylon, it has a very low moisture absorption rate, making it suitable for use in wet environments.

PTFE/Teflon has a machining cost factor of 1.2 when compared to steel 12L14.

Industries & Applications

  • Insulators
  • Bearings
  • Spacers
  • Valve components

PTFE and Teflon Characteristics

TEMPER

 

Yield Strength

Ultimate Tensile Strength

Modulus of Elasticity

Brinell Hardness (500kg/10mm)

30% Glass Fiber

 

2

 

190

 

30% Carbon Fiber

 

1.9

 

160

 

Unfilled

 

3.6

 

65

 

Plastic Cost Comparison

Type General Characteristics Alloy Common Applications Tolerances for a 1/2" Dia. Bar Material Cost Factor Machining Cost Factor
Plastics
High impact strength and durability, resistance to frictional wear, weathering, flame, heat, chemical, and radiation
PTFE and Teflon
Insulators, Bearings, Spacers, Valve components, low moisture absorption rate, making it suitable for use in wet environments
+0.005-0 12.1 1.2

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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