Phenolic RT325 - Tube

Alternative and trade names
Want to keep this datasheet? Save it now in your required format


RT325 uses a fine weave cotton fabric (linen) substrate. The resin system has graphitic carbon added in order to provide lubrication in bearing and bushing applications. It is an excellent machininggrade, but should not be used in applications where electrical insulation is required as the resin system is conductive.

This material data has been provided by Norplex Micarta.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts





23.0 °C

1.3 g/cm³

Show Supplier Material materials with Density of 1.3 g/cm³


Moisture absorption

23.0 °C

1.5 %

Show Supplier Material materials with Moisture absorption of 1.5 %

ASTM D570, Condition Dᵢ-24/23



Compressive strength

23.0 °C

162.03 MPa

Show Supplier Material materials with Compressive strength of 162.03 MPa

ASTM D695, Condition A

Hardness, Rockwell M

23.0 °C

90 [-]

Show Supplier Material materials with Hardness, Rockwell M of 90 [-]


Tensile strength

23.0 °C

72.39 MPa

Show Supplier Material materials with Tensile strength of 72.39 MPa

ASTM D638, Condition A



Relative temperature index, mechanical strength

125 °C

Show Supplier Material materials with Relative temperature index, mechanical strength of 125 °C



UL Bulletin 94, Class HB, Condition A

Technological properties

Application areas

Bearing and bushing applications.


Cotton Fabric and Graphite Powder


1.This temperature is a recommendation only, and based upon experience in various applications. The maximum operating temperature is dependent upon the application and should be investigated prior to use

2.The mechanical properties are converted from American unit system to International unit system.

Supplier Disclaimer

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 material's 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,, to determine if the information is the most current available.