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Torlon® 4501 PAI
Bearing Grade PolyAmide-Imide Datasheet

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

1-800-444-3485

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GENERAL DESCRIPTION

click to resize photo 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).

Torlon 4501 PAI (Compression Molded)

Torlon ® 4501 compression molded PAI is primarily used for wear and friction parts. It offers a very low expansion rate, low coefficient of friction and exhibits little or no slip-stick in use. This grade excels in severe service wear applications such as non- lubricated bearings, seals, bearing cages and reciprocating compressor parts.

Torlon ® 4501 compression molded PAI is the same formulation as extruded Torlon 4301 PAI, but has been made into stock shapes using a different manufacturing process. The resulting material is similar to 4301, but has slightly different mechanical properties. See Torlon 4301 Extruded PAI datasheet for comparison, or these two bearing grades side-by-side here.

Compression-molded Torlon ® 4501 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 4501 in the size you need. (see also Duratron T4501 PAI)
see also datasheets for:
Torlon | Electrical Grade Torlon | Bearing Grade Torlon | Glass-Filled Torlon | Carbon-Filled Torlon


TYPICAL PROPERTIES of TORLON® 4501 PAI POLYAMIDE-IMIDE

ASTM or UL test Property Torlon 4501 PAI
Compression Molded
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.052
1.45
D570 Water Absorption, 24 hrs (%) 0.4
D570 Water Absorption, Saturation (%) 1.5
MECHANICAL
D638 Tensile Strength (psi) 10,000
D638 Tensile Modulus (psi) 440,000
D638 Tensile Elongation at Break (%) 3.0
D790 Flexural Strength (psi) 20,000
D790 Flexural Modulus (psi) 650,000
D732 Shear Strength (psi) -
D695 Compressive Strength (psi) 16,000
D695 Compressive Modulus (psi) 359,000
D785 Hardness, Rockwell E70(M106)
D256 IZOD Notched Impact (ft-lb/in) 0.5
PTM 55007 Coefficient of Friction (Dry vs. Steel) Dynamic 0.20
PTM 55007 Limiting PV (4:1 Safety Factor) (ft-lb-in2-min 22,500
PTM 55010 Wear Factor "k" x 10-10(in3-min/ft-lb-hr 4.5
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
2
D648 Heat Deflection Temp (°F / °C)
at 264 psi

534 / 277
D3418 Glass Transition Temp (°F / °C) 527 / 275
- Max Operating Temp (°F / °C) 500 / 260
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)

3.70
12.75
UL94 Flammability Rating V-0
ELECTRICAL
D149 Dielectric Strength (V/mil) short time, 1/8" thick -
D150 Dielectric Constant at 1 MHz 6.0
D150 Dissipation Factor at 1 MHz 0.042
EOS/ESD S11.11 Surface Resistivity (ohms/square) > 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 SABIC Advanced Polmers (formerly GE Plastics)

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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: info@boedeker.com

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