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Stainless Steel-Filled PTFE
Stainless steel is the other metallic PTFE filler choice when extreme 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 require 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.
PBY Material Codes:
PB10804 - 50% Stainless Steel
Stainless Steel-Filled PTFE Spec. Summary
Property | Test Method | Units | 50 Stainless Steel |
---|---|---|---|
Color | - | - | Gray |
Specific Gravity | ASTM D4894 | - | 3.20 - 3.60 |
Hardness Shore D | ASTM D2240 | - | 65 - 75 |
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] |
Material Available In:
Stainless Steel-Filled PTFE Rods
Stainless Steel-Filled PTFE Tubes
Stainless Steel-Filled PTFE Sheets
Stainless Steel-Filled PTFE Material Properties
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Extremely hard wearing
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Excellent under extreme loads
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Excellent under extreme temperatures
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Lowers creep, cold flow and wear
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Increased thermal and electrical conductivity
Typical Applications for Stainless Steel-Filled PTFE
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Molded or extruded parts
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Bearings, seals, rotors and related parts
Stainless Steel-Filled PTFE Requirements
PB10804 meets ASTM D4745 Type I Grade 13 requirements