TECHTRON PPS HPV & KETRON PEEK HPV GRADES
Techtron ® PPS (Unfilled)
Techtron ® PPS offers the broadest resistance to chemicals of any advanced engineering plastic. They have no known solvents below 392°F (200°C) and are inert to steam, strong bases, fuels and acids. Minimal moisture absorption and a very low coefficient of linear thermal expansion, combined with stress-relieving manufacturing, make PPS ideally suited for precise tolerance machined components. Techtron ® is Natural (ivory or off-white) in color and is FDA and 3A-Dairy compliant.
Techtron ® PPS HPV (Bearing Grade)
This grade of Techtron, containing carbon, graphite and PTFE lubricants, offers the lowest coefficient of friction and the best machinability for all PPS grades. Techtron ® HPV has an excellent combination of low friction, low wear, high limiting PV, low mating part wear, and easy machining. The formulation of this product is in compliance with applicable food contact regulations in 21 CFR and can be used in contact with all foods under conditions of use C through H as defined in Table 2 of 21 CFR 176.170 (c). NOTE: The responsibility for evaluating the finished food contact article for conformance with FDA, EU and any other applicable requirements lies with the manufacturer of such article. Techtron HPV is medium blue in color.
PEEK (Unfilled)
This general purpose grade is unreinforced and offers the highest elongation and toughness of all PEEK grades. This material is standard in Natural (a very light brown or tan) color, but is also available in black . Black PEEK is ideal for instrument components where aesthetics are important, as well as for seal components where ductility and inertness are important. The unfilled PEEK grade complies with FDA regulation 21 CFR 177.2415 for repeated food contact. NOTE: The responsibility for evaluating the finished food contact article for conformance with FDA, EU and any other applicable requirements lies with the manufacturer of such article. Unfilled PEEK is also USDA and Canada AG compliant.
Ketron ® PEEK HPV (Bearing Grade)
This grade of PEEK, containing carbon fiber reinforced with graphite and PTFE lubricants, offers the lowest coefficient of friction and the best machinability for all PEEK grades. Ketron HPV has an excellent combination of low friction, low wear, high limiting PV, low mating part wear, and easy machining. Ketron HPV is black or dark grey in color.
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TYPICAL PROPERTIES of EXTRUDED TECHTRON PPS & PEEK GRADES | |||||
| ASTM or UL test | Property | Techtron PPS Unfilled (extruded) |
Techtron HPV Bearing Grade (extruded) |
PEEK Unfilled (extruded) |
Ketron HPV Bearing Grade (extruded) |
| PHYSICAL | |||||
| D792 | Density (lb/in³) (g/cm³) |
0.049 1.35 |
0.052 1.43 |
0.047 1.31 |
0.052 1.44 |
| D570 | Water Absorption, 24 hrs (%) | 0.01 | 0.01 | 0.10 | 0.05 |
| D570 | Water Absorption, Saturation (%) | 0.03 | 0.09 | 0.50 | 0.30 |
| MECHANICAL | |||||
| D638 | Tensile Strength (psi) | 13,500 | 10,900 | 16,000 | 11,000 |
| D638 | Tensile Modulus (psi) | 500,000 | 540,000 | 630,000 | 850,000 |
| D638 | Tensile Elongation at Break (%) | 15 | 5 | 40 | 2 |
| D790 | Flexural Strength (psi) | 21,000 | 10,500 | 25,000 | 27,500 |
| D790 | Flexural Modulus (psi) | 575,000 | 535,000 | 600,000 | 1,100,000 |
| D695 | Compressive Strength (psi) | 21,500 | 15,500 | 20,000 | 20,000 |
| D695 | Compressive Modulus (psi) | 430,000 | 340,000 | 500,000 | 500,000 |
| D785 | Hardness, Rockwell | M95/R125 | M84 | M100/R126 | M85 |
| D256 | IZOD Impact Notched (ft-lb/in) | 0.6 | 1.4 | 1.0 | 0.7 |
| QTM55007 (* not ASTM) |
Coefficient of Friction, Dry vs. Steel | 0.4 | 0.2 | 0.32 | 0.21 |
| QTM55007 (* not ASTM) |
Limiting PV (psi-fpm) | 3,000 | 8,750 | 8,500 | 20,000 |
| QTM55010 (* not ASTM) |
"K" Wear Factor, (x 10-10 in3-min/lb-ft-hr) | 2,400 | 62 | 375 | 100 |
| THERMAL | |||||
| D696 | Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) |
2.8 | 3.3 | 2.6 | 1.7 |
| D648 | Heat Deflection Temp (°F / °C) at 264 psi |
250 / 121 |
240 / 115 |
320 / 160 |
383 / 195 |
| D3418 | Melting Temp (°F / °C) | 540 / 282 | 536 / 280 | 644 / 340 | 644 / 340 |
| - | Max Operating Temp (°F / °C) | 425 / 218 | 430 / 221 | 480 / 249 | 482 / 250 |
| C177 | Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C) |
2.0 6.9 |
2.1 7.2 |
1.8 6.2 |
1.7 5.9 |
| UL94 | Flammability Rating | V-0 | V-0 | V-0 | V-0 |
| ELECTRICAL | |||||
| D149 | Dielectric Strength (V/mil) short time, 1/8" thick | 540 | 500 | 480 | - |
| D150 | Dielectric Constant at 1 MHz | 3.0 | - | 3.3 | - |
| D150 | Dissipation Factor at 1 MHz | 0.0013 | - | 0.0030 | - |
| D257 | Surface Resistivity (ohm-square) at 50% RH | 1013 | 1013 | 1013 | < 105 |
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.PEEK is a trademark of Victrex USA, Inc.
All values at 73°F (23°C) unless otherwise noted.
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