Pennchem

Technical Information

Temperature-Burst Pressure

Temperature-Burst Pressure

Minimum bend radius

Minimum bend radius
Size 1/4 3/8 1/2 5/8 3/4 1" 1/4 1-1/2 2"
CT 1.6 2.4 3.2 4.0 4.8* 6.4 7.9 9.6 12.7
TX 12.7 22.2* 31.8 38.1 50.8 56.5 69.9 76.2 108.0
(注)
1. A minimum bend radius should be such that no kink (fold of tube) is caused when a tube is wound around a pipe with a diameter equal to the minimum bend radius.
2. Diameter D corresponding to minimum bend radius R can be calculated by D=R X 2.*
3. Measurement should be made at room temperature.
4. Be careful not to bend Pennchem® CT and TX to below the minimum bend radius.
*
Sample
Pennchem® CT
Pennchem® CT 3/4"
R=4.8
*R=D/2
Pennchem® TX
Pennchem® TX 3/8"
R=22.2
*R=D/2

Summary of Properties

  Properties Unit ASTM Method TFE PFA
Physical Melting Point °C 327 302-310
Specific gravity D 792 2.14-2.20 2.12-2.17
Mechanical Tensile Strength MPa D 638 27.5-34.3 24.5-34.3
Elongation % D 638 200-400 300-400
Hardness,(shure) D 2240 D 50-55 D 60
Bending Modulus GPa D 790 0.40-0.55 0.66-0.69
Thermal Max. Service Temp No Pressure 260 260
Thermal Conductivity W/m•K C 177 0.25 0.25
Specific Heat J/g•K D 240 1.0 1.0
Linear Coefficient of Expansion 10-5/K D 696 10 12
Electrical Volume Resistance -cm D 257
(50RH,23)
>1018 >1018
Dielectric Strength KV/mm
(3.2mm fhickness)
D 149
(Short Term)
19 20
Others Water Absorption % D 570 <0.01 <0.03
Flammability Rating (3.2mm fhickness) (UL-94) V-0 V-0
Limited Oxygen Index D 2863 >95 >95