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Duratron® T PAI PolyAmide-Imide
Carbon-Reinforced Grade Specifications

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941 Fax: 1-361-594-2349 E-Mail:


BPI Home Page | Applications | Materials Guide | Contact Us!
Electrical Grade Duratron | Bearing Grade Duratron | Glass-Reinforced Duratron | Other Duratron Products

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click to resize photo Duratron ® T 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 Duratron ® T 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.


Duratron T7130 PAI (Extruded)

Duratron ® T7130 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 Duratron ® T7530 PAI (compression molded). Key applications for T7130 PAI include metal replacement, sliding vanes, aerospace parts, impellers, shrouds, pistons, and housings.

Extruded Duratron ® T7130 PAI is typically only available in thin sheets and small diameter rods. Check with us for availability of T7130 in the size you need.

Duratron T7530 PAI (Compression Molded)

Duratron ® T7530 compression molded PAI is the same formulation as T7130, but has been made into stock shapes using a different manufacturing process. The resulting material is similar to T7130, but has slightly different mechanical properties (see datasheet below).

Compression-molded Duratron ® T7530 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 T7530 in the size you need.

For a complete overview of Quadrant's Duratron product family, including other high-performance engineering plastics, see this page.
see also datasheets for:
Torlon | Electrical Grade Torlon | Bearing Grade Torlon | Glass-Filled Torlon | Carbon-Filled Torlon

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ASTM or UL test Property Duratron T7130 PAI
Duratron T7530 PAI
Compression Molded
D792 Density (lb/in³)
D570 Water Absorption, 24 hrs (%) 0.3 0.3
D570 Water Absorption, Saturation (%) 1.5 1.5
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 - -
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
(x 10-4 cal/cm-sec-°C)


UL94 Flammability Rating V-0 V-0
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.
All values at 73°F (23°C) unless otherwise noted.
DURATRON is a registered trademark of Quadrant Engineering Plastic Products.
TORLON is a registered trademark of Solvay Advanced Polymers.

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Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail:

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