7 1/4" Tubing | McMaster-Carr

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as frames, supports, and conduit. This steel is manufactured to ASTM, SAE, or EN standards for quality and performance.

DOM (drawn over mandrel) welded tubes are stronger than ERW (electric resistance welded) tubes.Tubes that are stress relieved minimize warping during machining.

Tubes

3/8" Wall Thick.
OD	ID	Yield Strength, psi	Fabrication	Weld Method	Heat Treatable	Heat Treatment	Hardness	Specifications Met		1/2 ft. Lg.	1 ft. Lg.
8"	7 1/4"	70,000	Welded	DOM (Drawn Over Mandrel)	No	Stress Relieved	Rockwell B80 (Medium)	ASTM A513 Type 5	00000000	000000	0000000

1" Lg.
OD	ID	Yield Strength, psi	Fabrication	Weld Method	Heat Treatable	Heat Treatment	Hardness	Specifications Met		Each
3/8" Wall Thick.
8"	7 1/4"	70,000	Welded	DOM (Drawn Over Mandrel)	No	Stress Relieved	Rockwell B80 (Medium)	ASTM A513 Type 5	00000000	000000
3" Lg.
3/8" Wall Thick.
8"	7 1/4"	70,000	Welded	DOM (Drawn Over Mandrel)	No	Stress Relieved	Rockwell B80 (Medium)	ASTM A513 Type 5	00000000	00000

Clear Scratch- and UV-Resistant Cast Acrylic Tubes

Color: Clear
Temperature Range: 0° to 150° F
Tensile Strength: 10,000-11,250 psi (Good)
Impact Strength: 0.3-0.4 ft.-lbs./in. (Poor)
Hardness: Rockwell M94-M100 (Hard)
For Use Outdoors: Yes
Specifications Met: See table

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.

3/8" Wall Thick.
OD	OD Tolerance	ID	Lengths, ft.	Specifications Met		Per Ft.
8"	-0.065" to 0.065"	7 1/4"	1, 3, 5	ASTM D5436, FDA Compliant 21 CFR 177.1010, UL 94 HB	00000000	0000000