 |
| E-mail this page to a colleague |
| NEMA L is a high mechanical strength laminate used as fine tooth gears, terminal boards and in electronic parts. |
|
A mechanical grade of fine weave cotton cloth laminate impregnated and cured with phenolic resin. |
Sheet sizes 36 x 72, 36 x 48, 48 x 48, 48 x 96, and 48 x 108 in thicknesses .031 in. to 5 in.; cut and fabricated per drawing |
Natural |
|
|
|
|
Density |
90 lbs/ft3 - .052 lbs/in3 |
|
Maximum operating temperature |
|
|
electrical |
239° F (115° C) |
|
mechanical |
257° F (125° C) |
|
Water absorption |
1.3% |
|
Hardness (Rockwell M) |
100 |
|
Compressive strength |
36,000 psi |
|
Tensile strength |
11,500 psi |
|
Flexural strength |
19,000 psi |
|
Shear (flatwise) |
13,000 psi |
|
Impact strength - Izod edgewise with grain |
1.6 ft-lb/in |
|
Dielectric strength |
250 vpm |
|
Dielectric constant (@ 106 cycles per second) |
n/a |
|
Volume resistivity |
n/a |
|
Arc resistance |
n/a |
|
Parallel dielectric |
25kv |
