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
View more products on our Gallery Page
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.
