Kapton® HN insulating tubes, non-shrinking, class C (> 200 °C)

Kapton® HN insulating tubes, non-shrinking, class C (> 200 °C)

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Coiled insulating and protective conduit for applications in temperature class C.

  • Inside diameters from 1.60 mm to 210 with wall thicknesses from 0.028 mm available.
  • Outstanding mechanical properties.
  • For applications in temperature class C up to 250 °C.
  • Dielectric strength remains even when exposed to radiation

Wound Insulation Tubes made of Kapton® are highly stable and can be used in the most demanding applications in the aerospace, aviation and automotive industries. It is used where high dielectric strength and mechanical strength are required despite low wall thicknesses. It is suitable for applications with the harshest environmental conditions.

Art.-Nr.

Technical data

Properties: DuPont™ Kapton® HN

Electrical properties
Properties Typical value for film 25 µm Test condition Test method
-195 °C 25 °C 200 °C
short-term
Dielectric strength [kV] 10,8 7,0 5,6 60 Hz ASTM D 149-64
Dielectric constant — 3,5 3,0 1000 Hz ASTM D 150-64T
Loss factor — 0,003 0,002 1000 Hz ASTM D 150-64T
Contact resistance [Ω/m] — 1016 1012 — ASTM D 257-61
Surface resistance [Ω/square] — 1016 — 50% relative humidity ASTM D 257-61
Corona discharge voltage [V] — 465 — 50% relative humidity ASTM D 1868-61T
Insulation resistance [MΩ/F] — 100000 — measured from a capacitor wound with 25 µm H foil

0.05 µF

 

Physical properties
Property Typical value for film 25 µm Test method
-195 °C 25° C 200 °C
Tear strength (LR) [kg/cm2]

[MPa]

 2,450

241

 1,750

172

 1,200

117

 ASTM D 882-64T
Yield strength (LR) [kg/cm2]

[MPa]

 – 700

69

 420

41

 ASTM D 882-64T
Tension for 5% elongation (LR) [kg/cm2]

[MPa]

 – 910

90

 600

59

 ASTM D 882-64T
Tear elongation (LR) [%] 2 70 90 ASTM D 882-64T
Train module (LR) [kg/cm2]

[MPa]

 35’800

3’500

 30’000

2’950

 18,200

1,800

 ASTM D 882-64T
Impact resistance (D) [kg/cm] [N/m] – 6

0.6

 – DuPont™ Pneumatic

Impact Test
Folding resistance (MIT) Cycles – 10’000 – ASTM D 2176-63T
Tear resistance (Elmendorf) [g]

[mN]

 – 8

78

 – ASTM D 1922-61T
Tear resistance (Graves) [g]

[N]

 – 510

5

 – ASTM D 1004-61
Burst test (Mullen) [kg/cm2]

[kPa]

 – 5.25

517

 – ASTM D 774-63T
Density [Mg/m2] 1,42 – ASTM D 1505-63T
Coefficient of sliding friction film to film – 0,42 – ASTM D 1894-63
Refractive index (Becke Line) – 1,78 – Encyclopaedic Dictionary of Physics, Volume 1
Grammage [m2/kg] – 28 – Calculation

 

Thermal properties
Property Typical value for film 25 µm Test condition Test method
Melting point none
Zero Strength Temperature*) 815 °C 1.4 kg/cm2 (138 kPa) Load during 5 s Hot Bar (DuPont™ Test)

Softening temperature

 435 °C

525 °C

 25 µm

50-125 µm

 Weighted Probe on Heated Film (DuPont™ Test)
Thermal expansion coefficient 2.0 x 10-5/K -14 °C to 38 °C ASTM D 696-44
Thermal [cal] [cm]

conductivity [cal] [cm]

coefficient [cal] [cm]

 3.72 x 10-4 [cm2][s][°C][0,156W/m/K] 25 °C Model TC-1 000 Twin Heatmeter Comparative Tester
3.89 x 10-4 [cm2][s][°C][0,163W/m/K] 75 °C
4.26 x 10-4 [cm2][s][°C][0,178W/m/K] 200 °C
Flammability self-extinguishing –
heat sealable no –
Heat capacity 0.261 cal/g/°C (1092 J/kg/K) 40 °C Differential calorimeter

 

*) Temperature at which the film can withstand a tension of 0.014 MPas (20psi) for 5 s.

 

Item number:

IRNKHdddd/www/llll Example: IRNKH0100/005/0500 IRNKH = master number 0100 = 1.00 mm diameter 005 = 0.05 mm wall thickness 0500 = 500 mm length

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