NP320 TECHNICAL DATA BULLETIN GRADE NP320 NEMA LI 1-1998 Grade L U.L. LISTED N DESCRIPTION Fine weave less than 4 ouncesquare yard cotton fabric commonly called linen combined with phenolic resin to provide better machining than NP310. NP320 should be used for smaller and more intricate shapes than NP310 when a finer surface finish is required. NP320 meets or exceeds the requirements of ANSINEMA IM 60000-2021 Grade L MIL-I-2476815 FBI and IEC-60893-4-PF CC 203. TYPICAL PROPERTIES VALUE Thickness Tested 0.125 UNITS 0.0625 0.500 PHYSICAL PROPERTIES Specific Gravity ASTM D792 Rockwell Hardness ASTM D785 Moisture Absorption ASTM D570 Flexural Strength ASTM D790 Flexural Modulus ASTM D790 Tensile Strength ASTM D638 Izod Impact Strength ASTM D256 Compressive Strength ASTM D695 Bonding Strength ASTM D229 Shear Strength ASTM D732 Norplex-Micarta 0.250 Build-up M Scale Condition D1-2423 Condition A LW CW Condition A LW CW Condition A LW CW Condition A LW CW Condition E-4850 LW CW Condition A Flatwise Condition A psi MPa kpsi GPa psi MPa ft-lbin Jcm ft-lbin Jcm psi MPa lb kg psi MPa Condition A Perpendicular Page 1 of 2 1.34 100 2.30 24500 18500 168.9 127.6 1700 1300 11.7 9.0 14000 10000 96.5 68.9 1.70 1.35 0.91 0.72 38000 262.0 2000 907.2 13500 93.1 7142022 TECHNICAL DATA BULLETIN GRADE NP320 NEMA LI 1-1998 Grade L U.L. LISTED N TYPICAL PROPERTIES continued UNITS 0.0625 VALUE Thickness Tested 0.125 0.500 THERMAL PROPERTIES 1 Temperature Index UL Bulletin 746b Electrical Mechanical Coefficient of Thermal Expansion IPC-TM 650-2.4.24 X-axis Y-axis Flammability Rating Condition A UL Bulletin 94 C C x10-6 115 125 18.0 19.0 Class HB - 0.070 - 5.80 ELECTRICAL PROPERTIES Dissipation Factor 1 MHz ASTM D150 Condition A Relative Permittivity 1 MHz ASTM D150 Condition A Breakdown Voltage ASTM D149 Condition A Condition D-2423 Condition D-2423 Condition D-4850 Electric Strength ASTM D149 Condition A Condition D-4850 Arc Resistance Condition A ASTM D495 Comparative Tr
acking Index ASTM D3638 kVolts kVolts Voltsmil kVcm Voltsmil kVcm 45 2 575 226.4 450 177.2 sec 15 Volts 170 1 1 This temperature is a recommendation only and based upon experience in various applications. The maximum T operating temperature is dependent upon the application and should be investigated prior to use. h This data while believed to be accurate and based on reliable analytical methods is for informational purposes only. The terms and conditions of the agreement under which it is sold will govern any sales of this product. Data supplied above are typical values not to be considered specification values. To assure the materials performance is adequate for a specific application customers should verify independent of Norplex-Micarta performance characteristics of interest. It is the responsibility of the users of this information to make sure that they have the latest version of this TDB and are urged to check with Customer Service or preferably our web site www.norplex-micarta.com to determine if the information is the most current available. Specification writers Contact Norplex-Micarta for specification values before submission. Norplex-Micarta Page 2 of 2 7142022
