Delrin 500 AF

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DELRIN®500AF blend stock shapes are a 20% PTFE fiber filled homopolymer acetal. It is designed for applications requiring low wear and and/or low coefficient of friction against steel, itself, and other plastics. This advanced acetal material uses a combination of PTFE fibers uniformly dispersed in Delrin acetal resin. The combination results in improved wear characteristics along with strength, toughness, dimensional stability and machinability. The materials exceptional wear properties and internal lubrication serves to reduce or elimanate the need for external lubricants.

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At a Glance

Generic Name
Polyoxymethylene, Polyacetal

Available In
Sheet, Rod

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Technical Information

Stock Products Properties Applications Advantages

Stock Products

Type	Size	Length	Color
Sheet	.250 – 3”	24” x 48’, 12” x 48”, 48” x 96”	Grey
Rod	.250 – 3″	96”, 120”	Grey

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.

Properties

Physical Properties	Units	ASTM	Results
Density	lb/in³	D792	1.53
Water Absorption, 24 hrs	%	D570	0.12

Mechanical Properties	Units	ASTM	Results
Tensile Strength @ yield	psi	D638
Tensile Modulus	psi	D638	360000
Tensile Elongation @Break	%	D638	10
Flexural Strength	psi	D790	12000
Flexural Modulus	psi	D790	445000
Compressive Strength	psi	D695	14000
Compressive Modulus	psi	D695	300000
Hardness, Rockwell R		D785	80
IZOD Impact Strength Notched	ft-lb/in	D256	0.6

Thermal Properties	Units	Results
Coeffcient of Linear Thermal Expansion	(x 10^-5 in./in./°F)	6.0
Heat Deflection Temp at 264 psi	°F	244
Melting Temperature	°F	347
Max Operating Temp.	°F
Thermal Conductivity	BTU-in/ft²-hr-°F
Flammability Rating

Electrical Properties	Units	ASTM	Results
Dielectric Strength. 1/8″ th.	V/mil	D149	400
Dielectric Constant @1 MHz			3.1
Dissipation [email protected] MHz		D150
Volume Resistivity, 50% RH	ohm-cm	D257

NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.

Applications

Bushings
Bearings
Seals
Gaskets
Valve seats

Advantages

Self Lubricating
Low coefficeient of friction
Maximum unmodified toughness
Superior load bearing characteristics

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