Pipe for Pipe Supports | McMaster-Carr

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Material

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Length

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Fitting Material

Fitting Connection

Wall Thickness

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Specifications Met

Pressure Class

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

Yes

DFARS Specialty Metals

Exempt

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

2B999

EAR99

Fitting Finished Material

304 Stainless Steel

304/304L Stainless Steel

316 Stainless Steel

316/316L Stainless Steel

Aluminum

Bronze

Copper Nickel

F22 Chrome-Moly Steel

Pressure Rating

Wall Thickness Rating

For Flange Class

198 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Fitting Type

Adapter

Bridge the gap between pipe with different fitting connections

14 products

Performance

Chemical Resistant

Stay strong when exposed to acids, bases, and other harsh chemicals

38 products

Performance

Corrosion Resistant

Withstand exposure to moisture and mild chemicals

120 products

Threading

Threaded

Screw onto pipe and fittings with compatible threads and genders

14 products

Standard-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

Also known as Schedule 40, this pipe has a thicker wall than our thin-wall stainless steel unthreaded pipe. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak.

Pipe—Unthreaded

304/304L Stainless Steel—Pipe holds up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.

316/316L Stainless Steel—Pipe is the most corrosion resistant. It stands up to wet environments, just like 304 stainless steel pipe, but unlike 304 stainless steel, it will not corrode from salt water, chlorine solutions, and chemicals.

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

Welded—Pipe has a weld bead on the inside.

				304/304L Stainless Steel		316/316L Stainless Steel
	Lg.	Construction	Pipe Schedule		Each		Each
Butt Weld/Socket Connect/Weld Socket Male







				2 Pipe Size

				2"	Welded	40	1947K69	000000	———	0


				2 1/2"	Welded	40	1947K71	00000	———	0
				3"	Welded	40	1947K72	00000	———	0
				4"	Welded	40	1947K73	00000	———	0
				5"	Welded	40	1947K416	00000	———	0
				6"	Welded	40	1947K74	00000	———	0
				8"	Welded	40	1947K417	00000	———	0
				10"	Welded	40	1947K418	00000	———	0
				1 ft.	Seamless	40	44985K761	00000	45725K861	0000000
				1 ft.	Welded	40	44635K311	00000	44635K791	000000
				3 ft.	Seamless	40	44985K762	000000	45725K862	000000


				3 ft.	Welded	40	44635K312	000000	44635K792	000000
				6 ft.	Seamless	40	44985K21	000000	45725K33	000000
				6 ft.	Welded	40	44635K442	000000	44635K642	000000

Standard-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

Weld this unthreaded pipe to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak. Pipe is also known as Schedule 40. Use in noncorrosive environments.

Pipe—Unthreaded

Butt Weld/Socket

Connect/Weld Socket

Welded—Pipe has a weld bead on the inside.

	Material		Each
Butt Weld/Socket Connect/Weld Socket







	2 Pipe Size

	1 1/2"	Welded	40	Steel	1120T69	000000


	2"	Welded	40	Steel	1120T71	00000
	3"	Welded	40	Steel	1120T72	00000
	4"	Welded	40	Steel	1120T73	00000
	6"	Welded	40	Steel	1120T74	00000
	8"	Welded	40	Steel	1120T75	00000
	1 ft.	Welded	40	Steel	7750K116	00000
	3 ft.	Welded	40	Steel	7750K196	00000
	5 ft.	Welded	40	Steel	7750K236	000000

Thick-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

Thick, Schedule 80 walls give this pipe better strength than our standard-wall steel unthreaded pipe. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak. It is for use in noncorrosive environments.

Pipe—Unthreaded

Male

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

P22 Chrome-Moly Steel—P22 chrome-moly steel is stronger and easier to weld than plain steel. It resists scaling even in steam applications.

	Lg.	Construction	Pipe Schedule	Material		Each
Butt Weld/Socket Connect/Weld Socket Male







				1/8 Pipe Size

				1 ft.	Seamless	80	Steel	7972K111	000000


				3 ft.	Seamless	80	Steel	7972K311	00000
				6 ft.	Seamless	80	Steel	7972K11	000000




						3/8 Pipe Size

						2"	Seamless	80	Steel	7972K51	0000


						4"	Seamless	80	Steel	7972K52	00000
						6"	Seamless	80	Steel	7972K53	00000
						8"	Seamless	80	Steel	7972K54	00000




								1/2 Pipe Size

								2"	Seamless	80	Steel	7972K55	0000


								4"	Seamless	80	Steel	7972K56	00000
								6"	Seamless	80	Steel	7972K57	00000
								8"	Seamless	80	Steel	7972K58	00000
								1 ft.	Seamless	80	P22 Chrome-Moly Steel	1982K27	00000
								3 ft.	Seamless	80	P22 Chrome-Moly Steel	1982K33	000000




										3/4 Pipe Size

										2"	Seamless	80	Steel	7972K59	00000


										4"	Seamless	80	Steel	7972K61	00000
										6"	Seamless	80	Steel	7972K62	00000
										8"	Seamless	80	Steel	7972K63	00000
										1 ft.	Seamless	80	P22 Chrome-Moly Steel	1982K28	00000
										3 ft.	Seamless	80	P22 Chrome-Moly Steel	1982K34	000000




												1 Pipe Size

												2"	Seamless	80	Steel	7972K64	00000


												4"	Seamless	80	Steel	7972K65	00000
6"												Seamless	80	Steel	7972K66	00000
8"	Seamless											80	Steel	7972K67	00000
1 ft.	Seamless											80	P22 Chrome-Moly Steel	1982K29	00000
3 ft.	Seamless											80	P22 Chrome-Moly Steel	1982K35	000000




		1 1/4 Pipe Size

		2"	Seamless									80	Steel	7972K68	00000


		4"	Seamless									80	Steel	7972K69	00000
		6"	Seamless									80	Steel	7972K71	00000
		8"	Seamless									80	Steel	7972K72	00000




				1 1/2 Pipe Size

				2"	Seamless							80	Steel	7972K73	00000


				4"	Seamless							80	Steel	7972K74	00000
				6"	Seamless							80	Steel	7972K75	00000
				8"	Seamless							80	Steel	7972K76	00000
				1 ft.	Seamless							80	P22 Chrome-Moly Steel	1982K31	000000
				3 ft.	Seamless							80	P22 Chrome-Moly Steel	1982K36	000000




						2 Pipe Size

						4"	Seamless					80	Steel	7972K77	00000


						6"	Seamless					80	Steel	7972K78	00000
						8"	Seamless					80	Steel	7972K79	00000
						1 ft.	Seamless					80	P22 Chrome-Moly Steel	1982K32	000000
						1 ft.	Seamless					80	Steel	7972K119	00000
						3 ft.	Seamless					80	P22 Chrome-Moly Steel	1982K37	000000
						3 ft.	Seamless	80				Steel	7972K319	000000
						6 ft.	Seamless	80	Steel			7972K19	000000




								2 1/2 Pipe Size

								4"	Seamless			80	Steel	7972K81	00000


								6"	Seamless			80	Steel	7972K82	00000
								8"	Seamless			80	Steel	7972K83	00000




										3 Pipe Size

										4"	Seamless	80	Steel	7972K84	00000


										6"	Seamless	80	Steel	7972K85	00000
										8"	Seamless	80	Steel	7972K86	000000




										4 Pipe Size

										4"	Seamless	80	Steel	7972K87	00000


										6"	Seamless	80	Steel	7972K88	000000
										8"	Seamless	80	Steel	7972K89	000000

Standard-Wall Aluminum Unthreaded Pipe Nipples and Pipe

With a thicker wall than our thin-wall aluminum pipe, this pipe is also known as Schedule 40. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak. This pipe meets ASTM B241, so it meets strict manufacturing requirements to ensure performance and quality. Made of aluminum, it’s lightweight with good corrosion resistance.

Pipe—Unthreaded

Pipe

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

	Lg.	Construction	Pipe Schedule	Material		Each
Butt Weld/Socket Connect/Weld Socket Male







				1/8 Pipe Size

				4"	Seamless	40	6061 Aluminum	5038K514	00000


				6"	Seamless	40	6061 Aluminum	5038K516	0000
				8"	Seamless	40	6061 Aluminum	5038K517	00000
				10"	Seamless	40	6061 Aluminum	5038K518	00000
				1 1/2 ft.	Seamless	40	6061 Aluminum	5038K519	00000




						1/4 Pipe Size

						1 1/2"	Seamless	40	6061 Aluminum	5038K521	0000


						2"	Seamless	40	6061 Aluminum	5038K522	0000
						4"	Seamless	40	6061 Aluminum	5038K524	0000
						6"	Seamless	40	6061 Aluminum	5038K526	0000




								3/8 Pipe Size

								1 1/2"	Seamless	40	6061 Aluminum	5038K531	0000


								2"	Seamless	40	6061 Aluminum	5038K532	0000
								3"	Seamless	40	6061 Aluminum	5038K533	0000
								6"	Seamless	40	6061 Aluminum	5038K536	00000
								8"	Seamless	40	6061 Aluminum	5038K537	00000
								10"	Seamless	40	6061 Aluminum	5038K538	00000
								1 1/2 ft.	Seamless	40	6061 Aluminum	5038K539	00000




										1/2 Pipe Size

										2"	Seamless	40	6061 Aluminum	5038K542	0000


										3"	Seamless	40	6061 Aluminum	5038K543	0000
										4"	Seamless	40	6061 Aluminum	5038K544	0000
										5"	Seamless	40	6061 Aluminum	5038K545	00000
										6"	Seamless	40	6061 Aluminum	5038K546	00000
										8"	Seamless	40	6061 Aluminum	5038K547	00000
										10"	Seamless	40	6061 Aluminum	5038K548	00000
										1 1/2 ft.	Seamless	40	6061 Aluminum	5038K549	00000




												3/4 Pipe Size

1 1/2"	Seamless											40	6061 Aluminum	5038K551	0000


3"	Seamless											40	6061 Aluminum	5038K553	0000
4"	Seamless	40										6061 Aluminum	5038K554	0000
5"	Seamless	40	6061 Aluminum									5038K555	00000
10"	Seamless	40	6061 Aluminum									5038K558	00000
1 1/2 ft.	Seamless	40	6061 Aluminum									5038K559	00000




		1 Pipe Size

		2"	Seamless									40	6061 Aluminum	5038K561	0000


		4"	Seamless									40	6061 Aluminum	5038K563	00000
		5"	Seamless	40								6061 Aluminum	5038K564	00000
		6"	Seamless	40	6061 Aluminum							5038K565	00000
		8"	Seamless	40	6061 Aluminum							5038K566	00000
		10"	Seamless	40	6061 Aluminum							5038K567	00000
		1 1/2 ft.	Seamless	40	6061 Aluminum							5038K568	00000




				1 1/4 Pipe Size

				2"	Seamless							40	6061 Aluminum	5038K569	0000


				3"	Seamless	40	6061 Aluminum					5038K571	00000
				4"	Seamless	40	6061 Aluminum					5038K572	00000
				5"	Seamless	40	6061 Aluminum					5038K573	00000
				6"	Seamless	40	6061 Aluminum					5038K574	00000
				8"	Seamless	40	6061 Aluminum					5038K575	00000
				10"	Seamless	40	6061 Aluminum					5038K576	00000
				1 1/2 ft.	Seamless	40	6061 Aluminum					5038K577	00000




						1 1/2 Pipe Size

						2"	Seamless					40	6061 Aluminum	5038K578	0000


						3"	Seamless	40	6061 Aluminum			5038K579	00000
						4"	Seamless	40	6061 Aluminum			5038K581	00000
						6"	Seamless	40	6061 Aluminum			5038K583	00000
						8"	Seamless	40	6061 Aluminum			5038K584	00000
						10"	Seamless	40	6061 Aluminum			5038K585	00000
						1 1/2 ft.	Seamless	40	6061 Aluminum			5038K586	00000




								2 Pipe Size

								3"	Seamless			40	6061 Aluminum	5038K587	00000


								4"	Seamless	40	6061 Aluminum	5038K588	00000
								5"	Seamless	40	6061 Aluminum	5038K589	00000
								6"	Seamless	40	6061 Aluminum	5038K591	00000
								1 ft.	Seamless	40	6061 Aluminum	5038K322	00000
								1 1/2 ft.	Seamless	40	6061 Aluminum	5038K592	00000
								3 ft.	Seamless	40	6061 Aluminum	5038K59	000000
								6 ft.	Seamless	40	6061 Aluminum	5038K24	000000




2 1/2 Pipe Size

4"	Seamless									40	6061 Aluminum	5038K593	00000


6"	Seamless									40	6061 Aluminum	5038K595	00000
8"	Seamless									40	6061 Aluminum	5038K596	00000




										3 Pipe Size

										4"	Seamless	40	6061 Aluminum	5038K597	00000


		6"								Seamless	40	6061 Aluminum	5038K599	00000
		1 1/2 ft.	Seamless							40	6061 Aluminum	5038K613	000000




										4 Pipe Size

										4"	Seamless	40	6061 Aluminum	5038K614	00000


										5"	Seamless	40	6061 Aluminum	5038K615	00000
										6"	Seamless	40	6061 Aluminum	5038K616	00000
										8"	Seamless	40	6061 Aluminum	5038K617	00000
										10"	Seamless	40	6061 Aluminum	5038K618	000000
										1 1/2 ft.	Seamless	40	6061 Aluminum	5038K619	000000

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Also known as Schedule 40, this pipe is designed for low-pressure applications. Use in noncorrosive applications.

Pipe Adapters—Threaded on One End

Male

Welded—Pipe has a weld bead on the inside.

	Material		Each
NPT Male × Butt Weld/Socket Connect/Weld Socket Male







	2 Pipe Size

	2"	Welded	40	Steel	7753K129	00000


	2 1/2"	Welded	40	Steel	7753K273	0000
	3"	Welded	40	Steel	7753K139	0000
	3 1/2"	Welded	40	Steel	7753K274	00000
	4"	Welded	40	Steel	7753K149	00000
	4 1/2"	Welded	40	Steel	7753K275	00000
	5"	Welded	40	Steel	7753K276	00000
	5 1/2"	Welded	40	Steel	7753K277	00000
	6"	Welded	40	Steel	7753K159	00000
	8"	Welded	40	Steel	7753K278	00000
	10"	Welded	40	Steel	7753K279	00000


	12"	Welded	40	Steel	7753K169	00000
	36"	Welded	40	Steel	7750K396	00000
	60"	Welded	40	Steel	7750K436	000000

Thin-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

Also known as Schedule 10, this pipe is thin and lightweight. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak.

Pipe—Unthreaded

304/304L Stainless Steel—Pipe holds up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.

Welded—Pipe has a weld bead on the inside.

				304/304L Stainless Steel		316/316L Stainless Steel
	Lg., ft.	Construction	Pipe Schedule		Each		Each
Butt Weld/Socket Connect/Weld Socket Male







				2 Pipe Size

				1	Welded	10	4347K361	000000	4378K561	000000


				3	Welded	10	4347K362	00000	4378K562	000000
				6	Welded	10	4347K59	000000	4378K79	000000

Thick-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

Also known as Schedule 80, this pipe provides an extra-strong connection. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak.

Pipe—Unthreaded

304/304L Stainless Steel—Pipe holds up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

				304/304L Stainless Steel		316/316L Stainless Steel
	Lg., ft.	Construction	Pipe Schedule		Each		Each
Butt Weld/Socket Connect/Weld Socket Male







				2 Pipe Size

				1	Seamless	80	4804T181	0000000	4815T181	0000000


				3	Seamless	80	4804T182	000000	4815T182	000000
				6	Seamless	80	4804T183	000000	4815T183	000000

Thick-Wall Aluminum Unthreaded Pipe Nipples and Pipe

The strongest aluminum pipe we offer, this pipe is also known as Schedule 80. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak. Pipe is aluminum, which is lightweight with good corrosion resistance.

Pipe—Unthreaded

Male

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

	Material		Each
Butt Weld/Socket Connect/Weld Socket Male







	2 Pipe Size

	1	Seamless	80	6061 Aluminum	4559T611	000000


	3	Seamless	80	6061 Aluminum	4559T612	000000
	6	Seamless	80	6061 Aluminum	4559T613	000000

Thin-Wall Aluminum Unthreaded Pipe Nipples and Pipe

Also known as Schedule 10, this pipe has the thinnest walls of all our aluminum pipe. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak. Pipe is lightweight with good corrosion resistance.

Pipe—Unthreaded

Male

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

	Material		Each
Butt Weld/Socket Connect/Weld Socket Male







	2 Pipe Size

	1	Seamless	10	6063 Aluminum	4561T611	000000


	3	Seamless	10	6063 Aluminum	4561T612	00000
	6	Seamless	10	6063 Aluminum	4561T613	000000

Extra-Thick-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

With an extra-thick wall, this Schedule 160 pipe is the strongest stainless steel pipe we offer. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak.

Pipe—Unthreaded

304 Stainless Steel—Pipe holds up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.

316 Stainless Steel—Pipe is the most corrosion resistant. It stands up to wet environments, just like 304 stainless steel pipe, but unlike 304 stainless steel, it will not corrode from salt water, chlorine solutions, and chemicals.

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

				304 Stainless Steel		316 Stainless Steel
	Lg., ft.	Construction	Pipe Schedule		Each		Each
Butt Weld/Socket Connect/Weld Socket Male







				2 Pipe Size

				1	Seamless	160	2053K15	0000000	2057K15	0000000


				3	Seamless	160	2053K21	000000	2057K21	000000
				6	Seamless	160	2053K26	000000	2057K26	000000

Standard-Wall Brass and Bronze Unthreaded Pipe Nipples and Pipe

With two unthreaded ends, this pipe is designed for brazed connections, which are stronger than threaded connections and less likely to leak. It is also known as Schedule 40. Pipe is brass, which has good corrosion resistance.

Pipe—Unthreaded

Braze Socket Male

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

	Pipe						Brazing Rings
	Lg., ft.	Construction	Pipe Schedule	Material		Each		Each
Braze Socket Male







				2 Pipe Size

				1	Seamless	40	230 Brass	4501K79	000000	2190K49	000000


				3	Seamless	40	230 Brass	4501K59	000000	2190K49	00000
				6	Seamless	40	230 Brass	4501K38	000000	2190K49	00000

Standard-Wall Copper Unthreaded Pipe Nipples and Pipe

Designed for salt water applications, this pipe is made of copper-nickel, which has excellent resistance to stress cracking and better corrosion resistance than most stainless steel alloys. Pipe is also known as Pressure Class 200 pipe. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak.

Pipe—Unthreaded

Male

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

	Material	Certification		Each
Butt Weld/Socket Connect/Weld Socket Male







	2 Pipe Size

	1	Seamless	200	Copper Nickel	Mil. Spec.	1946K33	0000000


	3	Seamless	200	Copper Nickel	Mil. Spec.	1946K39	000000
	6	Seamless	200	Copper Nickel	Mil. Spec.	1946K46	000000