Industrial Electrical Engg Company

Established since 1921

NEMA LI 1-2001 Grade C

Technical Description:
Bakelite Sheets of NEMA Grade C are fabric base Phenolic sheets, Phenolic sheets posses good mechanical and impact strength, hence they are intended for Mechanical application requiring high Impact strength.

Applications of Bakelite Sheets NEMA GRADE C:
Include gears and bearings. It has lower mechanical strength than material with glass substrates, but has superior impact resistance when compared to paper based products. This material is not as suitable for fine machining as Grade L Bakelite sheets.

Thickness:
Thickness of Bakelite sheets ranges from 0.4 MM – 40.0 MM.

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

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

Tolerance:
Tolerance of thickness is as per NEMA Standards.

Technical Data for Bakelite Sheets NEMA Grade C

 Properties  Units

 

Test Methods

ASTM

 Condition  

Average Test Results

 

Values As Per

NEMA LI 1-2001

Mechanical
Tensile Strength ksi

D229

A

 

LW

10.8

 

CW

8.2

Flexural Strength(1/2” thick) ksi

D229

A

 

LW

16.3

16.0 Min

 

CW

15.1

15.0 Min

 

Izod Impact

(1/2” Thick)

D229

E.48/50

 

LW

Ft-lb/in

2.1

1.9

 

CW

(notch)

1.8

1.7

 

Bonding Strength

(1/2” Thick)

Ibs

D229

A

1900

1800

 

1675

1600

Maximum Water Absorption(1/2” Thick)

%

D229

D-24/23

0.60

0.90Max

 

Density

gm/cc

1.38

1.36

Electrical
Min. BreakdownVoltage

(1/4” thick)

Kv

D229

A

20

15.0

 

 


Category

  • No categories

Archives

Meta