Phenolic RTB320Z - Tube

Alternative and trade names
NEMA GRADE: LE, U.L. LISTED: N
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Description

RTB320Z is similar to RTB320X being composed of an extra-fine weave woven cotton fabric with a phenolic resin system. RTB320Z tubes have higher densities (minimum allowable specific gravity is 1.30) resulting in enhanced precise machining characteristics and are expected to give longer life in wear applications. RTB320Z also complies with MIL-I-24768/13, Type FBE, ASTM D709 Type II Grade LE, Federal Specification WW-L-2887 and IEC 61212-3-1 PF CC 21.

This material data has been provided by Norplex Micarta.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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

Properties

General

PropertyValueTesting StandardComment

Density

1.34 g/cm³

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ASTM D792

Moisture absorption

1.4 %

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ASTM D570

Condition D₁-24/23

Mechanical

PropertyValueTesting StandardComment

Compressive modulus

4.8 GPa

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ASTM D695

Condition A

Compressive strength

227.5 MPa

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ASTM D695

Condition A

Hardness, Rockwell M

105 [-]

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ASTM D785

Tensile strength

75.8 MPa

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ASTM D638

Condition A

Thermal

PropertyValueComment

Relative temperature index, electrical

125 °C

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¹

Relative temperature index, mechanical strength

125 °C

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¹

Flammability

UL Bulletin 94, Class HB, Condition A

Electrical

PropertyValueTesting StandardComment

Dielectric strength

7.87 kV/mm

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ASTM D149

Condition A

Technological properties

Property
Application areas

Typical uses include retainers for ball-bearings.

Fillers

Cotton Fabric

Other

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, www.norplex-micarta.com, to determine if the information is the most current available.