Description
Phenolic paper-based (X) tubing has been used extensively through the years in various applications and parts in switch gear, transformers, tap changers, munitions, rockets, bushings, sleeves, coil forms, core tubes and casings. Paper phenolic tubing has excellent electrical properties in high humidity conditions. The combination of the high-temperature resistant phenolic resin and a treated paper convolute wound tube provides excellent strength, weather resistance and electrical resistance. Phenolic XX is commonly used as table saw blade inserts. The "X" designations generally distinguish manufacturing processes which result in different levels of electrical properties (i.e., dielectric strengths). Paper-based phenolics are available in a variety of sheet, rod, and tube sizes.
- Excellent Mechanical Properties
- Excellent Electrical Properties
- High dimensional stability
- Chemical, moisture & oil resistance
- High dielectric strength
- High strength-to-weight ratio
Technical
Typical Physical Properties:
Specific Gravity: 1.35
Tensile Strength: 17,000 psi
Compressive Strength: 35,000 psi
Flexural Strength: 34,000 psi
Hardness, M Scale: 120
Bond Strength: 1500 psi
Shear Strength: 11,500 psi
Dissipation Factor: 0.040 10^6 cycles, Cond A
Dielectric Constant: 5.30 10^6 cycles, Cond A
Electric Strength: 750 V/MIL Cond A
Flammability Rating: 94HB
Max Oper. temp: 140ºC/284ºF
Coefficient Thermal Exp.: 1.20 IN/IN/ºC X 10-5
Water Absorption: 2.00 %- 24 hrs
Izod Impact Strength: 1.80 ft/lb/in @49ºC
Safety