Stainless Steel Filled PTFE

Stainless steel is the other metallic PTFE filler choice when extremely wear resistance to high temperatures is required. Stainless steel is added in in high amounts, usually 50% in weight, which is equivalent to 15% in volume, to improve the thermal conductivity and reduce the deformation under load when Stainless steel-filled PTFE materials are subjected to load at extreme temperatures.

Stainless steel-filled PTFE materials have very good abrasion resistance and compressive strength. Stainless steel-filled PTFE materials are typically used for seats and seals that required high heat and steam applications.

Moreover, stainless steel-filled PTFE materials are highly machinable and comply with FDA and EC regulations, so they are the preferred choice in the food processing industry.

Order Material
Spec. Summary
Property Test Method Units Stainless Steel
Color - - Gray
Specific Gravity ASTM D4894 - 3.200 - 3.600
Hardness Shore D ASTM D2240 - 63 - 73
Tensile Strength, min. ASTM D4745 PSI [MPa] 2,200 [15.2]
Elongation at Break, min. ASTM D4745 % 120
Second Melt Peak Temp. ASTM D3418 °F [°C] 621 [327]
Glass Transition Temp. ASTM D3418 °F [°C] -143 [-97]; 246 [119]

Stainless Steel Filled PTFE Properties

  • Extremely hard wearing

  • Excellent under extreme loads

  • Excellent under extreme temperatures

  • Lowers creep, cold flow and wear

  • Increased thermal and electrical conductivity

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Typical Applications

  • Molded or extruded Parts

  • Bearings, seals, rotors and related parts

Spec. Compliance