Stainless Steel Filled PTFE has enhanced mechanical properties by the use of a 50% by weight (or 15% by volume) stainless steel powder filling.
Stainless Steel Filled PTFE Properties
Stainless Steel Filled PTFE is extremely hard wearing, has excellent strength and stability under extreme loads and elevated temperatures whilst still retaining the low coefficient of friction of conventional PTFE. It is an extremely versatile product and can be used on Steam and Thermal Fluid applications.
It is also an extremely good seat material for use in V-Ball type Flow Control Ball Valve applications due to its high resistance to wear.
STRENGTHS
WEAKNESSES
| Property | Test Method | Typical Values |
|---|---|---|
| Specific Gravity | ASTM D 4894 | 3.35 g/cm3 |
| Tensile Strength | ASTM D 4894 | Min 22 MPa |
| Elongation | ASTM D 4894 | Min 220% |
| Shore D Hardness | Needle | 65 - 69 |
The addition of Stainless Steel to PTFE gives better dimensional stability and lowers creep, cold flow and wear. It increases hardness and compressive strength whilst also increasing thermal and electrical conductivity.
