140 Vulcanised Fibre

 

Vulcanized Fibre is a material manufactured by gelatinizing several piles of high purity cellulose papers. It has extremely high internal bond strength and mechanically excellent punching, forming, machining and many other unique properties.

Vulcanized Fibre has the following general properties:-

  • Combination of high mechanical strength and dielectric properties.
  • Exceptional strength/weight ratio.
  • High arc quenching properties both in air and oil.
  • Good resistance to wear, fatigue and impact.
  • Excellent anti-static and ageing properties.
  • Freedom from harmful chemicals, which enables it to be used in direct contact with metals without corrosive effect.
  • It is unaffected by organic solvents, petrol's, oils and greases.
  • Specifications – BS.6091/Type B, IEC 667/Type B DIN. 7737,ASTM-D-710

 

PropertyThickness mm (in)Units

Value

Density (Min.)

0.38 (0.015)
1.6 (0.062)

g/cm31.15

Tensile strength (typical) MD

CD

1.6 (0.062)

psl
kgf/mm2

psl
kgf/mm2

13,500
9.5

7,500 
5.3

Flexural strength (min) MD

CD

1.6 (0.062)

psl
kgf/mm2

psl
kgf/mm2

20,000
14.1

13,000
9.2

Compressive strength flatwise

(typical)

1.6 (0.062)psi
kgf/mm2
35,000
24.6

Impact strength Izod, MD

Edgewise (typical) CD

1.6 (0.062)

kgf-ft-lbs/in
cm/cm

kgf-ft-lbs/in
cm/cm

2.3
12.5

1.8
9.8

Hardness, Rockwell R Scale
(typical)

1.6 (0.062)Division70

Bursting strength, Mullen
(typical)

0.38 (0.015)psi
kgf/cm2

300
21.1

Dielectric strength (typical)

0.38 (0.015)

1.6 (0.062)

volts/mil
kV/mm
175
6.9
Arc Resistance (typical)1.6 (0.062)seconds100
Water absorption (Max)1.6 (0.062)

%/2hrs
%/24hrs

52
66

Grey

Ash content (max) Red

Black

 %

1.0

5.0

1.0

Zinc Chloride content (Max) %0.05

UL94 Flame Class

All Colours

Above 0.76

(above 0.03)

 94HB
BA.2757 Thermal Classification  

Class ‘A’
(105 C)

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