NEMA Grade C (FBM) Canvas-Phenolic Laminate
NEMA grade C is a grade of NEMA laminate. The graph bars on the material properties cards below compare NEMA grade C 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
220 MPa 32 x 103 psi
Flexural Modulus
6.6 GPa 0.95 x 106 psi
Flexural Strength
110 MPa 16 x 103 psi
Impact Strength: Notched Izod
110 J/m 2.0 ft-lb/in
Rockwell M Hardness
100
Shear Strength
79 MPa 11 x 103 psi
Tensile Strength: Ultimate (UTS)
55 MPa 8.0 x 103 psi
Thermal Properties
Maximum Temperature: Mechanical
120 °C 250 °F
Thermal Expansion
20 µm/m-K
Other Material Properties
Density
1.4 g/cm3 85 lb/ft3
Dielectric Strength (Breakdown Potential)
12 kV/mm 0.45 V/mil
Water Absorption After 24 Hours
2.7 %
Common Calculations
Strength to Weight: Axial
11 points
Strength to Weight: Bending
24 points
Followup Questions
Further Reading
NEMA LI 1: Industrial Laminated Thermosetting Products
Thermosets: Structure, Properties and Applications, Qipeng Guo (editor), 2012