We offer the following types of tubings in PTFE, FEP and PFA materials:
|
|
plain tubing |
|
|
coloured tubing |
|
|
striped coloured tubing |
|
|
radiopqaue stripe tubing |
|
|
multilumen tubing |
| |
|
tubing fabrications |
Our tubings are used for the following applications:
|
|
medical (USP Class VI approved) |
|
|
instrumentation |
|
|
automotive push pull cables |
|
|
industrial and process hydraulics and other fluids |
|
|
electrical and electronic insulations (UL approved) |
General properties of our tubings:
Property |
ASTM test |
PTFE |
PFA |
FEP |
| Physical properties |
| Specific gravity |
D792 |
2.15 |
2.15 |
2.15 |
| Water absorption (%) |
D570 / 24 hrs 1/3" t |
< 0.00 |
0.03 |
< 0.01 |
| Mold shrinkage (cm / cm) |
|
0.02 - 0.05 |
0.04 |
0.03 - 0.06 |
| Contact angle (degree) |
Angle to level |
110 |
115 |
115 |
| Thermal properties |
Thermal conductivity
(cal/sec/cm2, o/cm) |
C177 |
6 x
10-4 |
6 x
10-4 |
6 x
10-4 |
Coefficient of liner
thermal expansion(1 /o C) |
D696 / 23 - 60o C |
10 x
10-5 |
12 x
10-5 |
8-10 x
10-5 |
| Melting point (o C) |
|
327 |
302 - 310 |
270 |
| Melt viscosity (poise) |
|
1011-1013
(340-380o C) |
104-105
(380oC) |
4 x 104-10 5
(380oC) |
Maximum tem for
continuos use (oC / oF) |
|
260 / 500 |
260 / 500 |
200 / 392 |
| Mechanical properties |
Tensile strength
(kgf / cm2) |
D638 / 23oC |
140 - 350 |
280 - 315 |
190 - 220 |
| Elongation (%) |
D638 / 23oC |
200 - 400 |
280 - 300 |
250 - 330 |
Compression strength
(kgf / cm2) |
D695 / 1 %
deformation, 25oC |
50 - 60 |
50 - 60 |
50 - 60 |
Tensile modulus
(kgf / cm2) |
D638 / 23oC |
4,000 |
3,800 |
3,500 |
Flexural modulus
(kgf / cm2) |
D790 / 23oC |
5,000 - 6,000 |
6,600 - 7,000 |
5,500 - 6,500 |
Impact strength
(ft - lb / in) |
D256 / 23oC, Izod |
3.0 |
No breakdown |
No breakdown |
| Hardness (Shore) |
Durometer |
D50 - D65 |
D60 |
D55 |
| Deformation under load (%) |
D621 / 100oC,
70 kgf/cm2,, 24 hrs
D621 / 25oC,
140 kgf/cm2, 24 hrs |
5.0
7.0
|
2.4
2.7
|
5.0
3.0 |
| Static friction coefficient |
Coated - steel surface |
0.02 |
0.05 |
0.05 |
| Electrical properties |
| Dielectric constant |
D150 / 103 Hz
D150 / 106 Hz |
2.1
2.1 |
2.1
2.1 |
2.1
2.1 |
| Dielectric dissipation factor |
D150 / 103 Hz |
< 1 x
10-5 |
1 x
10-5 |
6 x
10-5 |
Dielectric break
down strength (V / mil) |
D149 / Short time,1/ 8 in |
480 |
500 |
500-600 |
| Volume resistivity (ohm - cm) |
D257 |
> 1018 |
> 1018 |
> 1018 |
| Chemical resistance |
|
Excellent |
Excellent |
Excellent |
| Weather ability |
|
Excellent |
Excellent |
Excellent |
| Combustibility (%) |
D2863 / Oxygen
concentration index |
> 95 |
> 95 |
> 95 |
PTFE = Polytetrafluoro ethylene, PFA = Perfluoro alkoxy, FEP = Fluorinated ethylene propylene)
REGULAR SHIPMENTS TO OVER 40 COUNTRIES
|
