6 5/8" Tubing | McMaster-Carr

Fabricate containers, tanks, and lenses for light fixtures with these scratch- and UV-resistant cast acrylic tubes. Cast acrylic, which is comparable to Lucite and Plexiglas® Acrylic, is easier to machine than extruded acrylic. This material stands up to outdoor use better than polycarbonate and maintains clarity over time.

For technical drawings and 3-D models, click on a part number.

3/16" Wall Thick.
OD	OD Tolerance	ID	Lengths, ft.	Specifications Met		Per Ft.
7"	-0.065" to 0.065"	6 5/8"	1, 3, 5	ASTM D5436, FDA Compliant 21 CFR 177.1010, UL 94 HB	00000000	0000000

Mineral Wool Pipe Insulation

These insulation tubes and sheets meet ASTM E84 standards for flame and smoke. They are typically used in process piping and mechanical systems and perform best at temperatures up to 600° F. To use outdoors, add metal jacketing.

For technical drawings and 3-D models, click on a part number.

Tubes

Temperature Range: 0° to 1200° F
Heat Flow Rate: 0.23 Btu @ 75° F
Density: 8 lbs./cu. ft.
Color: Yellow
Specifications Met: See table

1" Wall Thick.
ID	For Pipe Size	Lg., ft.	Flexibility	Specifications Met	R Value		Each
6 5/8"	6	3 1/4	Rigid	ASTM E84 0/0 for Flame and Smoke, ASTM C547	4.3	00000000	000000
1 1/2" Wall Thick.
6 5/8"	6	3 1/4	Rigid	ASTM E84 0/0 for Flame and Smoke, ASTM C547	6.5	00000000	00000
2" Wall Thick.
6 5/8"	6	3 1/4	Rigid	ASTM E84 0/0 for Flame and Smoke, ASTM C547	8.7	00000000	000000

Fiberglass Pipe Insulation

This common insulation material is typically used on hot and cold water lines and in process piping. To use outdoors, add metal jacketing.

Tubes, elbows, and tees are formed to provide the best fit on pipe and are the easiest to install. If your pipe is larger than the sizes we offer, choose a sheet/strip.

Tubes have an all-service jacket (ASJ) made of kraft paper with an adhesive strip closure. Seal with reinforced insulation tape (sold separately).

For technical drawings and 3-D models, click on a part number.

Tubes with Kraft Paper Jacketing

Tube

Temperature Range: 0° to 850° F
Jacket Temperature Range: -20° to 150° F
Heat Flow Rate: 0.23 Btu @ 75° F
Density: 4.5 lbs./cu. ft.
Color: Yellow
Jacket Color: White
Specifications Met: ASTM E84 25/50 for Flame and Smoke, ASTM C547, ASTM C585

1" Wall Thick.
ID	For Pipe Size	Lg., ft.	Flexibility	R Value		Each
6 5/8"	6	3	Rigid	4.3	0000000	000000
1 1/2" Wall Thick.
6 5/8"	6	3	Rigid	6.5	0000000	00000
2" Wall Thick.
6 5/8"	6	3	Rigid	8.7	0000000	00000
3" Wall Thick.
6 5/8"	6	3	Rigid	13	00000000	00000

Reinforced Insulation Tape (3" × 30 ft.)

00000000

Each

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90° Elbows

Elbow

Temperature Range: 0° to 1000° F
Heat Flow Rate: 0.23 Btu @ 75° F
Density: 5 lbs./cu. ft.
Color: Brown
Specifications Met: ASTM E84 25/50 for Flame and Smoke, ASTM C585

1" Wall Thick.
ID	For Pipe Size	Flexibility	R Value		Each
6 5/8"	6	Rigid	4.3	00000000	000000
1 1/2" Wall Thick.
6 5/8"	6	Rigid	6.5	00000000	00000
2" Wall Thick.
6 5/8"	6	Rigid	8.7	00000000	00000

Tees

Tee

Temperature Range: 0° to 1000° F
Heat Flow Rate: 0.23 Btu @ 75° F
Density: 5 lbs./cu. ft.
Color: Brown
Specifications Met: ASTM E84 25/50 for Flame and Smoke, ASTM C585

			1 1/2" Wall Thick.			2" Wall Thick.
ID	For Pipe Size	Flexibility	R Value		Each	R Value		Each
6 5/8"	6	Rigid	6.5	00000000	000000	8.7	00000000	0000000

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About Selecting Thermal Insulation

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Clear Scratch- and UV-Resistant Cast Acrylic Tubes

Mineral Wool Pipe Insulation

Fiberglass Pipe Insulation