Duratron® T4301 PAI


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  • Extremely high maximum operating temperature in air;
  • Excellent retention of mechanical resistance, stiffness and creep resistance;
  • Very low coefficient of linear thermal expansion, up to +250 °C;
  • Excellent behaviour with friction and wear;
  • Low intrinsic flammability;

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The addition of graphite and PTFE gives the unmodified grade of this material greater resistance to wear and a lower friction coefficient while minimising or even fully removing the stick-slip effect during use.
This grade excels in severe service wear applications such as non-lubricated bearings and bushings, seals, bearing cages, and parts for reciprocating compressors.

Specifications
- High maximum operating temperature in air (+250 °C continuously)
- Excellent retention of mechanical strength, stiffness and creep resistance within a wide range of temperatures
- Very low linear thermal expansion coefficient, up to +250 °C
- Excellent behaviour with friction and wear (this is especially true for DURATRON 4301 PAI)
- Low intrinsic flammability
- Extraordinary resistance against high energy radiation


Properties ISO / (IEC) standard Unit of measurement Value
General properties      
Colour     black
Density 1183-1 g/cm3 1.45
Water absorption:      
- after 24/96 h immersion in 62 mg 26/48
water at 23 °C
  62 % 0.30/0.55
- at saturation in air of 23 °C / 50% RH -- % 1.9
- at saturation in water of 23 °C -- % 3.8
Thermal properties      
Melting temperature 11357-1/-3 °C NA
Glass transition temperature 11357-1/-2 °C 280
Thermal conductivity at 23 °C - W (K.m) 0.54
Average coefficient of linear thermal expansion:      
- average value between 23 and 100 °C - m/(m.K) 35x10-6
- average value between 23 and 150 °C - m/(m.K) 35x10-6
- average value above 150 °C - m((m.K) 40x10-6
Deflection temperature under load:      
- method A: 1.8 MPa 75-1/-2 °C 280
Max. operating temperature in air:      
- for short periods - °C 270
- continuously: min. 20.000 h - °C 250
Min. operating temperature     -20
Flammability:      
- "Oxygen index" 4589-1/-2 % 44
- according to method UL 94 - - V-0/V-0
(1.5/3 mm thickness)
Mechanical properties at 23 °C      
Tension test      
- Tensile stress at yield / tensile stress at break 527-1/-2 MPa NYP/110
- Tensile strain at break 527-1/-2 % 5
- Tensile modulus of elasticity 527-1/-2 MPa 5500
Compression test      
- Compressive stress at 1% nominal strain 604 MPa 39
- Compressive stress at 2% nominal strain 604 MPa 72
Charpy impact strength - unnotched 179-1/1eU kJ/m2 45
Charpy impact strength - notched 179-1/1eA kJ/m2 4
Ball indentation hardness 2039-1 N/mm2 200
Rockwell hardness 2039-2 - M 106 (E 70)
Electrical properties at 23 °C      
Dielectric strength (60243-1) kV/mm --
Volume resistivity (60093) Ohm.sq >1013
Surface resistivity ANSI/ESD Ohm.sq >1013
STM 1111
Relative permittivity Â: 60250 -- 6
at 100 Hz
at 1 MHz 60250 -- 5.4
Dielectric dissipation factor. tan ‰: 60250 -- 0.037
at 100 Hz
at 1 MHz 60250 -- 0.042
Comparative Tracking Index 60112 -- 175
(CTI)

Although the information provided in this product data sheet is confirmed by reliable research, POLITECNICA CETAI shall not take any responsibility for the application, processing or use of such information.