NEMA Grade LE (FBE) Linen-Phenolic Laminate
NEMA grade LE is a grade of NEMA laminate. The graph bars on the material properties cards below compare NEMA grade LE to other thermoset plastics (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Compressive (Crushing) Strength
210 MPa 31 x 103 psi
Flexural Modulus
6.4 GPa 0.93 x 106 psi
Flexural Strength
110 MPa 15 x 103 psi
Impact Strength: Notched Izod
60 J/m 1.1 ft-lb/in
Rockwell M Hardness
110
Shear Strength
81 MPa 12 x 103 psi
Tensile Strength: Ultimate (UTS)
73 MPa 11 x 103 psi
Thermal Properties
Maximum Temperature: Mechanical
120 °C 250 °F
Thermal Expansion
20 µm/m-K
Other Material Properties
Density
1.3 g/cm3 84 lb/ft3
Dielectric Strength (Breakdown Potential)
12 kV/mm 0.45 V/mil
Water Absorption After 24 Hours
1.3 %
Common Calculations
Strength to Weight: Axial
15 points
Strength to Weight: Bending
29 points
Followup Questions
Further Reading
NEMA LI 1: Industrial Laminated Thermosetting Products
Thermosets: Structure, Properties and Applications, Qipeng Guo (editor), 2012