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GENERAL DESCRIPTION
Torlon ® PAI is the highest performing melt processable plastic. It has superior resistance to elevated temperatures. It is capable of performing under severe stress conditions at continuous temperatures to 500°F (260°C). Parts machined from Torlon ® PAI stock shapes provide greater compressive strength and higher impact resistance than most advanced engineering plastics. Its extremely low coefficient of linear thermal expansion and high creep resistance deliver excellent dimensional stability over its entire use range. PAI is an amorphous material with a Tg (glass transition temperature) of 537°F (280°C).
Depending upon the method used to produce a stock shape (sheet, rod, or tube), the properties of the resulting material can vary. Generally speaking, the best mechanical properties are exhibited by injection molded material. However, the process used is generally defined by the size and shape of the desired material. For example, small diameter rod and thin sheets are extruded -- larger shapes are compression molded. See the following descriptions and properties table for details.
TORLON ® CARBON-REINFORCED PAI Torlon 7130 PAI (Extruded)
Torlon ® 7130 is 30% carbon reinforced, extruded PAI. It offers exceptional stiffness, nonabrasive wear performance and the lowest coefficient of thermal expansion and the best fatigue resistance of all plastic materials. This grade is similar in composition to Torlon ® 7530 PAI (compression molded). Key applications for Torlon 7130 include metal replacement, sliding vanes, aerospace parts, impellers, shrouds, pistons, and housings.
Extruded Torlon ® 7130 PAI is typically only available in thin sheets and small diameter rods. Check with us for availability of 7130 in the size you need.
Torlon 7530 PAI (Compression Molded)
Torlon ® 7530 compression molded PAI is the same formulation as 7130, but has been made into stock shapes using a different manufacturing process. The resulting material is similar to 7130, but has slightly different mechanical properties (see datasheet below).
Compression-molded Torlon ® 7530 is typically available only in larger diameter rods (in short lengths), thicker sheets, and large (but short length) tubes. Check with us for availability of 7530 in the size you need.
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TYPICAL PROPERTIES of TORLON® CARBON-REINFORCED POLYAMIDE-IMIDE | |||
| ASTM or UL test | Property | Torlon 7130 PAI Extruded |
Torlon 7530 PAI Compression Molded |
| PHYSICAL | |||
| D792 | Density (lb/in³) (g/cm³) |
0.058 1.60 |
0.058 1.61 |
| D570 | Water Absorption, 24 hrs (%) | 0.3 | 0.3 |
| D570 | Water Absorption, Saturation (%) | 1.5 | 1.5 |
| MECHANICAL | |||
| D638 | Tensile Strength (psi) | 23,000 | 15,000 |
| D638 | Tensile Modulus (psi) | 1,000,000 | 900,000 |
| D638 | Tensile Elongation at Break (%) | 4.0 | 3.0 |
| D790 | Flexural Strength (psi) | 30,000 | 20,000 |
| D790 | Flexural Modulus (psi) | 980,000 | 900,000 |
| D732 | Shear Strength (psi) | - | - |
| D695 | Compressive Strength (psi) | 40,000 | 27,000 |
| D695 | Compressive Modulus (psi) | 700,000 | 600,000 |
| D785 | Hardness, Rockwell | E90 | E85(M106) |
| D256 | IZOD Notched Impact (ft-lb/in) | 1.0 | 0.7 |
| PTM 55007 | Coefficient of Friction (Dry vs. Steel) Dynamic | - | 0.20 |
| PTM 55007 | Limiting PV (4:1 Safety Factor) (ft-lb-in2-min | - | 20,000 |
| PTM 55010 | Wear Factor "k" x 10-10(in3-min/ft-lb-hr | - | - |
| THERMAL | |||
| E-831 | Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) |
0.9 | 2.6 |
| D648 | Heat Deflection Temp (°F / °C) at 264 psi |
- |
520 / 271 |
| D3418 | Glass Transition Temp (°F / °C) | 527 / 275 | 527 / 275 |
| - | Max Operating Temp (°F / °C) | 500 / 260 | 500 / 260 |
| C177 | Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C) |
2.5 8.6 |
2.5 8.6 |
| UL94 | Flammability Rating | V-0 | V-0 |
| ELECTRICAL | |||
| D149 | Dielectric Strength (V/mil) short time, 1/8" thick | 700 | - |
| D150 | Dielectric Constant at 1 MHz | 6.3 | - |
| D150 | Dissipation Factor at 1 MHz | 0.050 | - |
| EOS/ESD S11.11 | Surface Resistivity (ohms/square) | > 1013 | > 1013 |
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.DURATRON is a registered trademark of Quadrant Engineering Plastic Products.
All values at 73°F (23°C) unless otherwise noted.
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