Industrial Electrical Engg Company

Established since 1921

IS 2036 – 1995 Grade F1

Technical Description :
These are Fabric Based Laminated Bakelite sheets confirming to specification, as per IS 2036. Bakelite Sheets of Grade F1 are manufactured from fine weave scoured Cotton fabric. These Bakelite sheets posses good electrical and mechanical Properties and can be machined to a fine finish. Grade F1 Bakelite Sheets are suitable for small components such as instrument gears as well as intricate Machined items.

Thickness:
Thickness of sheets ranges from 0.4 MM – 150 MM.

Size:
Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 1220mm x 610 (4 ft x 2 ft) or 610mm x 610mm (2ft x 2ft) or 2440mm x 1220mm (8ft x 4ft).

Tolerance:
Bakelite Sheets are supplied as per tolerance specified in IS:2036. More closer tolerance can be met as per customers’ specific requirement.

Colors:
Available Bakelite sheet colors are natural brown, dark brown or black.

Technical Data as per IS 2036 -1995 Grade F1

Properties    

Units

Average Test

Results

Value As PerIS: 2036- 1995
Electrical
Insulation Resistance afterimmersion in water for 24 hrs at 20˚C Meg Ohms

50

1.0 Min.

Electrical Strength in Oil at 90˙C
Flat wise (1.6 mmThickness) Kv/ mm

2.50

1.21 min

Edgewise (3.2 mm Thickness) Kv

4

2.0 min

Mechanical
Tensile strength kgcm²          780

Flexural Strength / Cross Breaking strength Kg/cm²          1475       1350 Min.
Shear Strength Kgf/cm²            740         650 Min.
Impact Strength (Edgewise Charpy method KJ/m²            8

6 Min

Specific Gravity           1.35

Water Absorption (Specimen size  -50  + 1mm square)      
Thickness mm   0.8 6.0 16.0 25.0
Maximum Value mg  201 277 354 420
Typical Value Results mg  180 235 305 380

 

 

 

 


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