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Thin walled PTFE tubing

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Thin walled tubes are produced by paste extrusion in different dimensioning and colours.
They are mostly employed for dielectric insulations, anticorrosion protection and for fluid transfer.
Small dimension tubes “Spaghetti” are manufactured as per AMS Standards in 3 dimension families.
Larger dimensions are produced in metric dimensions. Coil length and number of joints depend on tubings dimensions.

Available upon request:

Thin-wall tubings with various ID and thickness also colored (pigmented).

Dimensions

Tolerances ISO 13000 -1 sec. 4.2.4 Internal diameter tolerances Id

from (mm)	to (mm)	Tol. (mm)
... 5,0	5,0 30,0	+/ - 0.25 + /- 5%

thin wall tolerances Sp

from (mm)	to (mm)	Tol. (mm)
... 1,0	1,0 2,0	+/- 0,10 +/- 10%

Virgin PTFE datasheet

Properties	Method	Unit	Typical Values (from-to)
Specific gravity	ASTM D792	-	2,14 - 2,20
Tensile strength	ASTM D1457	N/mm2	20 - 35
Elongation at break	ASTM D1457	%	210 - 400
Compressive strength 1% deformation	ASTM D695	N/mm2	4,00 - 4,50
Deformation under load 14 N/mm2 for 24hrs	ASTM D621(1)	%	10 - 15
Flexural strength 0,7 N/mm2	ASTM D790	N/mm2	no break
Impact strength (Izod) 57°C	ASTM D256	J/cm	1,10
Impact strength (Izod) 23°C	ASTM D256	J/cm	1,60
Impact strength (Izod) 77°C	ASTM D256	J/cm	3,30
Hardness	ASTM D2240	(shoreD)	50 - 60
Friction coefficient - static	ASTM D3028 (2)	-	0,09
Friction coefficient - dynamic	ASTM D3028 (2)	-	0,05
PTFE - steel oil lubricated	-	-	0,02 - 0,06
Working temperature range	-	°C	-200 - +260
Increase in volume from room temperature to molten state (340°C)	-	%	27 - 28
Coefficient of thermal expansion from 25 to 100°C	ASTM E831	°C^-1	16 x 1^-5
Thermal conductivity	ASTM D2214	W/mK	0,20
Specific heat 0°C	-	KJ/kg.K	0,96
Specific heat 50°C	-	KJ/kg.K	1,05
Temperature of distortion 0,46 N/mm2	ASTM D648	°C	130 - 140
Temperature of distortion 1,85 N/mm2	ASTM D648	°C	50 - 60
Dielectric strength (short-time air thickness 0,5 mm)	ASTM D149	kV/mm	55
Dielectric constant	ASTM D150	-	2,10
Dissipation factor	ASTM D150	-	<0,0002
Volume resistivity	ASTM D257	Ohm/cm	10^-17
Surface resistivity	ASTM D257	Ohm	10^-15
Arc-resistance	ASTM D495	sec	OK (4)
Water absorption	ASTM D570	%	<0,01
Flammability ATB	ASTM D635	sec	<5,00
Flammability AEB	ASTM D635	mm	<5,00

Note:
All the values refer to the temperature of 23°C unless otherwise specified
(1) Superseded standard
(2) Speed 5 m/min; load 1kg/cm2, sliding surface steel roughness Ra = 0,4 " 0,6 micron
(3) 100% relative humidity
(4) Without defects