Norplex-Micarta RT628

Chemical Family: Phenols & Phenolics

Grade RT628 is an improved machining grade meeting NEMA XX for tubes. It has low moisture absorption and good dimensional stability. Typical applications are as a replacement for RT629 where improved machining characteristics are needed. The primary application is in transformers. Certification to IEC standard is pending.

Properties

Physical Form: Tube

Product families

Electrical & Electronics — Wire & Cable

Power Transmission & Distribution

Other characteristics

Density: 1220.0 - 1220.0 kg/m³
Features: Dimensional Stability, Good Machinability, Low Moisture Absorption
Polymer Name: Phenolic Compound
Markets: Electrical & Electronics
Technology: Composite Materials
Plastics
Product Families: Composite Materials — Parts & Shapes
Plastics — Parts, Shapes & Films
Quality Standards: IEC PF CP 23
MIL-I-24768/11 Type PBG
NEMA XX
Material Features: Dimensional Stability
Good Machinability
Low Moisture Absorption
Plastics and Elastomers End Uses: Power Transformers

Technical data

Table 1 of 3

6 rows

Characteristic	Value	Unit	Method
Specific Gravity (0.75" ID x 1.00" OD)	1.22	—	ASTM D792
Rockwell Hardness (0.75" ID x 1.00" OD)	80	M Scale	ASTM D785
Moisture Absorption (0.75" ID x 1.00" OD, Condition D1-24/23)	1.25	%	ASTM D570
Tensile Strength (0.75" ID x 1.00" OD, Condition A)	14500	psi	ASTM D638
Compressive Strength (0.75" ID x 1.00" OD, Condition A)	21000	psi	ASTM D695
Compressive Modulus (0.75" ID x 1.00" OD, Condition A)	430	kpsi	ASTM D695

Table 2 of 3

2 rows

Characteristic	Value	Unit	Method
Temperature Index (0.75" ID x 1.00" OD, Electrical / Mechanical)	130/130	°C	—
Flammability Rating (0.75" ID x 1.00" OD, Condition A)	HB	Class	UL Bulletin 94

Table 3 of 3