| GRADE :
NEMA G-10/FR-4 MiL-1-24768/27 |
SHEET SIZE
:
37" X 49" & 43" X 49"
|
| THICKNESS RANGE :
0.0187" - 2" |
DESCRIPTION :
This is a glass reinforced Epoxy resin bonded high pressure laminate for use in electrical
applications where high arc resistance is needed. Colour is light,
translucent solid.
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| S.no |
PROPERTIES
|
UNITS |
Condition |
TEST RESULTS |
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PHYSICAL PROPERTIES
|
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| 1. |
Specific Gravity
|
-- |
A |
1.902 |
| 2. |
Water Absorption
(5mm)
|
% |
D-24/23 |
0.19 |
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MECHANICAL
PROPERTIES
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| 1. |
Tensile Strength
L.W
C.W
|
Kg/cm2 |
A |
2650 |
| 2. |
Impact
Strength
A. Izod
L.W
B.Charpy
C.W
|
Kg/cm2 |
A |
85.15
|
| 3. |
Flexural Strength
L.W
C.W
|
Kg/cm2 |
A |
3920 |
| 4. |
Shear Strength
F.W
E.W
|
Kg/cm2 |
A |
1200 |
| 5. |
Compressive Strength
L.W
E.W
|
Kg/cm2 |
A |
5700 |
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ELECTRICAL PROPERTIES
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| 1. |
Electric Strength
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A. Edge Wise
|
KV
|
At 90°C in
oil |
Withstood upto 55kv |
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B. Flat Wise
|
KV/mm |
At 90°C in oil |
Withstood upto 22 kv/mm |
| 2. |
Insulation Resistance
After immersion in water for24hours
|
MOhms |
D-24/23 |
104 |
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THICKNESS TOLERANCE OF GLASS EPOXY LAMINATES - G10FR4 GRADE
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LAMINATE
THICKNESS (MM)
|
NORMAL
TOLERANCE
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< 0.5 |
+/- 0.05 |
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> 0.5 TO < 1.0 |
+/- 0.08 |
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> 1.0 TO < 2.0 |
+/-0.13 |
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> 2.0 TO < 4.0 |
+/- 0.18 |
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> 4.0 |
+/- 0.25 |
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PLEASE NOTE THAT OUR TOLERANCES ARE MUCH TIGHTER THAN THOSE SPECIFIED BY NEMA & ISI. TOLERANCES TIGHTER THAN THOSE SPECIFIED ABOVE WILL ATTRACT 10% ADDITIONAL PRICE. |
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