Acrylic Hollow Bars | McMaster-Carr

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Sodium Hydroxide (Caustic Soda)

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For Use Outdoors

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Hardness

Rockwell M89 to Rockwell M96

Rockwell M94 to Rockwell M100

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9,195 psi to 11,030 psi

10,000 psi to 11,250 psi

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

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Compare over 25 types of plastic to find the right material for you.

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Cut the smoothest finishes in the fastest time

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Prevent parts from scraping, slowing down, or overheating due to friction

37 products

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Flame Retardant

Meet UL flame-retardance standards

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Food and Beverage

Meet 3-A, FDA, or NSF standards

71 products

Clear Machinable Cast Acrylic Round Tubes

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.

	OD	ID	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Color	Specs. Met	Flammability Rating	Food Industry Std.	Choose a Length, ft.		Per Ft.
Standard Tolerance







				1/8" Thick Wall

				1 1/2"	1 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K331	000000


				1 3/4"	1 1/2"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K335	00000
				2"	1 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K341	00000
				2 1/2"	2 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K351	00000
				2 3/4"	2 1/2"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K355	00000
				3"	2 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K361	00000
				3 1/4"	3"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K365	00000
				3 1/2"	3 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K371	00000
				3 3/4"	3 1/2"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K94	00000
				4"	3 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K375	00000
				4 1/4"	4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K943	00000


				4 1/2"	4 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K381	00000
				4 3/4"	4 1/2"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K947	00000
				5"	4 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K385	00000
				5 1/4"	5"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K952	000000
				5 1/2"	5 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K391	00000
				5 3/4"	5 1/2"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K956	00000
				6"	5 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K395	00000
				7"	6 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K731	00000
				8"	7 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K735	000000




						1/8" Thick Wall (-0.020" to 0.020" Tolerance)

						2 1/4"	2"	Cast	0	150	Clear	UL 746C	UL 94 HB	—	1, 3, 5	8486K345	00000


						10"	9 3/4"	Cast	0	150	Clear	—	UL 94 HB	—	2, 4	84865K211	000000
						10 1/2"	10 1/4"	Cast	0	150	Clear	—	UL 94 HB	—	2, 4	84865K214	000000
						12"	11 3/4"	Cast	0	150	Clear	—	UL 94 HB	—	2, 4	84865K216	000000




								3/16" Thick Wall

								1 1/2"	1 1/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K431	00000


								1 3/4"	1 3/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K435	00000
								2"	1 5/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K441	00000
								2 1/2"	2 1/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K451	00000
								2 3/4"	2 3/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K455	00000
								3"	2 5/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K461	00000
								3 1/4"	2 7/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K465	00000
								3 1/2"	3 1/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K471	00000
								3 3/4"	3 3/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K941	00000
								4"	3 5/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K475	00000
								4 1/4"	3 7/8"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K944	00000


4 1/2"	4 1/8"							Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K481	00000
4 3/4"	4 3/8"							Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K948	00000
5"	4 5/8"							Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K485	00000
5 1/4"	4 7/8"	Cast						0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K953	00000
5 3/4"	5 3/8"	Cast	0					150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K957	000000
6"	5 5/8"	Cast	0					150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K495	00000
7"	6 5/8"	Cast	0					150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K831	000000
8"	7 5/8"	Cast	0					150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K835	000000




		3/16" Thick Wall (-0.020" to 0.020" Tolerance)

		2 1/4"	1 7/8"					Cast	0	150	Clear	UL 746C	UL 94 HB	—	1, 3, 5	8486K445	00000




								1/4" Thick Wall (-0.045" to 0.045" Tolerance)

								1 1/2"	1"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K531	00000


								1 3/4"	1 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K931	00000
								2"	1 1/2"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K535	00000
								2 1/2"	2"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K545	00000
								2 3/4"	2 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K551	00000
								3"	2 1/2"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K555	00000
								3 1/4"	2 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K561	000000
								3 1/2"	3"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K565	000000
								3 3/4"	3 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K942	00000
								4"	3 1/2"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K571	00000
								4 1/4"	3 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K945	00000


				4 1/2"	4"			Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K575	00000
				4 3/4"	4 1/4"			Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K949	00000
				5"	4 1/2"			Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K581	00000
				5 1/4"	4 3/4"			Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K954	000000
				5 1/2"	5"			Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K585	000000
				5 3/4"	5 1/4"			Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K958	00000
				6"	5 1/2"			Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K935	00000
				7"	6 1/2"			Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K591	000000
				8"	7 1/2"			Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K595	000000




						1/4" Thick Wall (-0.038" to 0.038" Tolerance)

						2 1/4"	1 3/4"	Cast	0	150	Clear	UL 746C	UL 94 HB	—	1, 3, 5	8486K541	00000


						10"	9 1/2"	Cast	0	150	Clear	—	UL 94 HB	—	2, 4	84865K212	000000
						12"	11 1/2"	Cast	0	150	Clear	—	UL 94 HB	—	2, 4	84865K217	000000




								3/8" Thick Wall (-0.056" to 0.056" Tolerance)

								4"	3 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K631	000000


								4 1/2"	3 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K635	000000
								4 3/4"	4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K951	000000
								5"	4 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K641	000000
								5 1/4"	4 1/2"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K955	000000
								5 1/2"	4 3/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K645	000000
								6"	5 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K651	000000
								7"	6 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K655	000000
								8"	7 1/4"	Cast	0	150	Clear	—	UL 94 HB	FDA Standard	1, 3, 5	8486K661	000000




								1/2" Thick Wall (-0.075" to 0.075" Tolerance)

								10"	9"	Cast	0	150	Clear	—	UL 94 HB	—	2, 4	84865K213	000000


		14"	13"					Cast	0	150	Clear	—	—	—	2, 4	84865K218	000000

Clear Scratch- and UV-Resistant Acrylic Rectangular Tubes

When compared to cast acrylic tubes, these extruded acrylic tubes offer nearly the same performance at a fraction of the cost. Use them for sight gauges and protective covers. This scratch- and UV-resistant material stands up to outdoor use better than polycarbonate and maintains clarity over time.

	Outside
	Ht.	Wd.	Lg., ft.	Fabrication	Temp., ° F	Color	Flammability Rating		Each
1/16" Thick Wall



		1/2"	1/2"	6	Extruded	-40 to 180	Clear	UL 94 HB	8516K33	00000


		3/4"	3/4"	6	Extruded	-40 to 180	Clear	UL 94 HB	8516K35	0000
		1"	1"	6	Extruded	-40 to 180	Clear	UL 94 HB	8516K37	00000


		1/8" Thick Wall



				1 1/4"	1 1/4"	6	Extruded	-40 to 180	Clear	UL 94 HB	8516K11	00000


				2"	2"	6	Extruded	-40 to 180	Clear	UL 94 HB	8516K39	00000
				2 1/4"	2 1/4"	6	Extruded	-40 to 180	Clear	UL 94 HB	8516K41	00000

Clear Scratch- and UV-Resistant Acrylic Round Tubes

	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Color	Flammability Rating		Each
Standard Tolerance







	1/16" Thick Wall

	1/4"	1/8"	6	Extruded	-40	180	Clear	UL 94 HB	8532K61	00000


	5/16"	3/16"	6	Extruded	-40	180	Clear	UL 94 HB	8532K62	0000
	3/8"	1/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K11	0000
	1/2"	3/8"	6	Extruded	-40	180	Clear	UL 94 HB	8532K13	0000
	5/8"	1/2"	6	Extruded	-40	180	Clear	UL 94 HB	8532K41	0000
	3/4"	5/8"	6	Extruded	-40	180	Clear	UL 94 HB	8532K16	0000
	7/8"	3/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K42	00000
	1"	7/8"	6	Extruded	-40	180	Clear	UL 94 HB	8532K21	0000
	1 1/4"	1 1/8"	6	Extruded	-40	180	Clear	UL 94 HB	8532K43	00000




			1/8" Thick Wall

			1/2"	1/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K12	0000


			5/8"	3/8"	6	Extruded	-40	180	Clear	UL 94 HB	8532K14	00000
			3/4"	1/2"	6	Extruded	-40	180	Clear	UL 94 HB	8532K15	00000
			7/8"	5/8"	6	Extruded	-40	180	Clear	UL 94 HB	8532K17	00000
			1"	3/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K18	00000
			1 1/4"	1"	6	Extruded	-40	180	Clear	UL 94 HB	8532K19	00000
			1 3/8"	1 1/8"	6	Extruded	-40	180	Clear	UL 94 HB	8532K63	00000
			1 1/2"	1 1/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K44	00000
			1 5/8"	1 3/8"	6	Extruded	-40	180	Clear	UL 94 HB	8532K64	00000
			1 3/4"	1 1/2"	6	Extruded	-40	180	Clear	UL 94 HB	8532K45	00000
			2"	1 3/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K22	00000


			2 1/4"	2"	6	Extruded	-40	180	Clear	UL 94 HB	8532K46	00000
			2 1/2"	2 1/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K47	00000
			2 3/4"	2 1/2"	6	Extruded	-40	180	Clear	UL 94 HB	8532K48	00000
			3"	2 3/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K23	00000
			3 1/4"	3"	6	Extruded	-40	180	Clear	UL 94 HB	8532K65	00000
			3 1/2"	3 1/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K49	00000
			3 3/4"	3 1/2"	6	Extruded	-40	180	Clear	UL 94 HB	8532K5	00000
			4"	3 3/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K51	00000
			4 1/2"	4 1/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K52	000000
			5"	4 3/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K53	000000


			6"	5 3/4"	6	Extruded	-40	180	Clear	UL 94 HB	8532K54	000000