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Norplex-Micarta NP325 Phenolic Cotton Laminate Sheet
Categories: Polymer; Thermoset; Phenolic

Material Notes: Linen phenolic laminate with graphite added as a solid lubricant. The linen substrate provides better surface to machined parts, and, more uniform wear resistance than NP315.

Information provided by Norplex-Micarta

Key Words: Cotton, Phenolic, Micarta, Graphite Lubricant
Vendors: Norplex-Micarta is the leading manufacturer of high performance thermoset composite materials. We work directly with customers to manufacture the highest quality specialty sheet products, pre-pregs, rods and molded shapes, and tubes to meet demanding composite applications for our OEMs and fabricators around the world. Visit norplex-micarta.com.

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.39 g/cc
@Thickness 12.7 mm
1.39 g/cc
@Thickness 0.500 in
ASTM D792
Moisture Absorption 1.50 %
@Thickness 1.57 mm
1.50 %
@Thickness 0.0620 in
ASTM D570 Condition A
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 100
@Thickness 6.35 mm
100
@Thickness 0.250 in
ASTM D785
Tensile Strength  65.5 MPa
@Thickness 3.17 mm
9500 psi
@Thickness 0.125 in
CrossWise; ASTM D638 Condition A
 93.1 MPa
@Thickness 3.17 mm
13500 psi
@Thickness 0.125 in
LengthWise; ASTM D638 Condition A
Flexural Strength  132 MPa
@Thickness 1.57 mm
19200 psi
@Thickness 0.0620 in
CrossWise; ASTM D790 Condition A
 139 MPa
@Thickness 1.57 mm
20100 psi
@Thickness 0.0620 in
LengthWise; ASTM D790 Condition A
Flexural Modulus  7.58 GPa
@Thickness 1.57 mm
1100 ksi
@Thickness 0.0620 in
CrossWise; ASTM D790 Condition A
 10.3 GPa
@Thickness 1.57 mm
1500 ksi
@Thickness 0.0620 in
LengthWise; ASTM D790 Condition A
Compressive Strength 241 MPa
@Thickness 12.7 mm
35000 psi
@Thickness 0.500 in
Flatwise; ASTM D695 Condition A
Shear Strength 100 MPa
@Thickness 1.57 mm
14500 psi
@Thickness 0.0620 in
perpendicular; ASTM D732 Condition A
Izod Impact, Unnotched  0.721 J/cm
@Thickness 12.7 mm
1.35 ft-lb/in
@Thickness 0.500 in
CrossWise; ASTM D256 Condition E-48/50
 0.758 J/cm
@Thickness 12.7 mm
1.42 ft-lb/in
@Thickness 0.500 in
LengthWise; ASTM D256 Condition E-48/50
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 10.0 µm/m-°C
@Thickness 3.17 mm
5.56 µin/in-°F
@Thickness 0.125 in
IPC-TM 650-2.4.24
CTE, linear, Transverse to Flow 12.0 µm/m-°C
@Thickness 3.17 mm
6.67 µin/in-°F
@Thickness 0.125 in
IPC-TM 650-2.4.24
UL RTI, Mechanical with Impact 125 °C257 °FUL Bulletin 746b
Flammability, UL94 HB
@Thickness 1.57 mm
HB
@Thickness 0.0620 in
 
Descriptive Properties
Bonding Strength1900[lb]; 0.5"; ASTM D229 Condition D-48/50

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