Acetal Discs | McMaster-Carr

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	Diameter Diameter

	Length Length

	Shape Shape


Rod and Disc	Round Tube

	Color Color

	White		Black
	Brown		Blue
	Off-White		Red

	Material Material

Delrin® Acetal Plastic

	Performance Properties Performance Properties

Electrical Insulator

Low Thermal Expansion

Low Water Absorption

	Comparable To Comparable To

Delrin®
Acetal Resin

	Specifications Met Specifications Met

FDA Compliant

NSF/ANSI

UL

	For Use With For Use With

	ID ID

	Friction Rating Friction Rating

	OD OD

	Hardness Hardness

Rockwell R120-R122

Rockwell R115-R118

Rockwell M50-M90

	Tolerance Rating Tolerance Rating

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Water Absorption Rating Water Absorption Rating

	Thermal Stability Thermal Stability

	Tensile Strength Tensile Strength

5,000-6,400 psi

6,400-9,500 psi

7,690-8,100 psi

9,135-9,700 psi

10,000-11,000 psi

	Density Density

0.048 lbs./cu. in.

0.051 lbs./cu. in.

0.054 lbs./cu. in.

0.056 lbs./cu. in.

0.048-0.051 lbs./cu. in.

	Dielectric Strength Dielectric Strength

	Electrical Insulation Rating Electrical Insulation Rating

	Flexural Modulus Flexural Modulus

330,000-350,000 psi

340,000-400,000 psi

400,000-420,000 psi

400,000-450,000 psi

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Wear-Resistant Easy-to-Machine Delrin® Acetal Resin

Wear-Resistant Easy-to-Machine
Delrin® Acetal Resin Rods and Discs

Wear-Resistant Easy-to-Machine Delrin® Acetal Resin Rods and Discs

Delrin® acetal resin, also known as acetal homopolymer, is stronger and stiffer than acetal copolymer.

Wear-Resistant Easy-to-Machine
Delrin® Acetal Resin Tubes

Delrin® acetal resin, also known as acetal homopolymer, is stronger and stiffer than acetal copolymer.

Slippery Wear-Resistant
Easy-to-Machine Delrin®
Acetal AF Resin Rods and Discs

Slippery Wear-Resistant Easy-to-Machine Delrin® Acetal AF Resin Rods and Discs

The addition of PTFE provides a more slippery, wear-resistant surface than standard Delrin® acetal resin. It’s commonly fabricated into pump components, gears, and bearings.

Slippery Wear-Resistant
Easy-to-Machine
Delrin® Acetal AF Resin Tubes

The addition of PTFE provides a more slippery, wear-resistant surface than standard Delrin® acetal resin. It’s commonly fabricated into pump components, gears, and bearings.

Rigid Glass-Filled Wear-Resistant
Easy-to-Machine Delrin®
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A glass-fiber filler gives this material increased rigidity over standard Delrin® acetal resin. Use it to machine manifolds, impellers, and other parts that require rigidity.

Wear-Resistant Easy-to-Machine Acetal Copolymer

Wear-Resistant Easy-to-Machine
Acetal Rods and Discs

Wear-Resistant Easy-to-Machine Acetal Rods and Discs

An economical alternative to Delrin® acetal resin, this acetal copolymer offers similar wear resistance.

Wear-Resistant
Easy-to-Machine Acetal Tubes

An economical alternative to Delrin® acetal resin, this acetal copolymer offers similar wear resistance.

Slippery Wear-Resistant
Easy-to-Machine Acetal Copolymer

A silicone additive gives this material a self-lubricating surface that reduces friction and extends the life of your parts.

Antistatic Wear-Resistant
Easy-to-Machine Acetal Rods

This material prevents the buildup of static charges.

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