Thick-Wall Stainless Steel Butt-Weld Pipe Fittings

Filter by

Fitting Connection

Butt Weld

Material

304 Stainless Steel

304/304L Stainless Steel

316 Stainless Steel

316/316L Stainless Steel

Pipe Schedule

160

System of Measurement

Pipe Size

Pipe Material

304/304L Stainless Steel

316 Stainless Steel

316/316L Stainless Steel

Shape

Fitting Type

Pressure Class

For Use With

Threading

Length

Gender

Thread Type

Specifications Met

Maximum Pressure @ Temperature

Wall Thickness

Construction

Fitting Material

304/304L Stainless Steel

316 Stainless Steel

316/316L Stainless Steel

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

2B999

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

Yes

RoHS

Compliant

Compliant with Exemptions

REACH

230 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

Pipe

Pair with fittings to transfer water, air, and other materials

Fitting Type

Adapter

Bridge the gap between pipe with different fitting connections

37 products

Outlet

Weld or glue over a drilled hole in pipe to add a line without disassembly

71 products

High-Pressure Stainless Steel Butt-Weld Pipe Fittings

With a thicker wall than our standard-wall butt-weld pipe fittings, these offer high strength while providing a smooth connection for maximum flow. They have beveled ends that, when flush to pipe, create a trough for a leak-resistant, permanent weld.

90° Elbow Connectors

Butt Weld

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

316/316L Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.

							304/304L Stainless Steel		316/316L Stainless Steel
	Pipe Size	Construction	OD	Pipe Schedule	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each		Each
Butt Weld



		1	Welded	1 5/16"	80	Not Rated	Not Rated	1739K11	000000	1741K11	0000000


		1 1/2	Welded	1 29/32"	80	Not Rated	Not Rated	1739K12	000000	1741K12	000000
		2	Welded	2 3/8"	80	Not Rated	Not Rated	1739K13	000000	1741K13	000000
		3	Welded	3 1/2"	80	Not Rated	Not Rated	1739K14	000000	1741K14	000000

45° Elbow Connectors

Butt Weld

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

							304/304L Stainless Steel		316/316L Stainless Steel
	Pipe Size	Construction	OD	Pipe Schedule	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each		Each
Butt Weld



		1	Welded	1 5/16"	80	Not Rated	Not Rated	1739K15	000000	1741K15	0000000


		1 1/2	Welded	1 29/32"	80	Not Rated	Not Rated	1739K16	000000	1741K16	000000
		2	Welded	2 3/8"	80	Not Rated	Not Rated	1739K17	000000	1741K17	000000
		3	Welded	3 1/2"	80	Not Rated	Not Rated	1739K18	000000	1741K18	000000

Tee Connectors

Butt Weld

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

							304/304L Stainless Steel		316/316L Stainless Steel
	Pipe Size	Construction	OD	Pipe Schedule	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each		Each
Butt Weld



		1	Welded	1 5/16"	80	Not Rated	Not Rated	1739K19	0000000	1741K19	0000000


		1 1/2	Welded	1 29/32"	80	Not Rated	Not Rated	1739K21	000000	1741K21	000000
		2	Welded	2 3/8"	80	Not Rated	Not Rated	1739K22	000000	1741K22	000000
		3	Welded	3 1/2"	80	Not Rated	Not Rated	1739K23	000000	1741K23	000000

Tee Outlets


Butt Weld × Butt Weld	Butt Weld × Butt Weld

Tee outlets allow you to create a tap anywhere along a pipe. They are known as branch connectors and are comparable to Weldolet. To install, drill a hole in your pipe to match the fitting's pipe size and weld in place.

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

				304/304L Stainless Steel				316/316L Stainless Steel
	Pipe Size (A)	For Pipe Size (B)	Construction	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Butt Weld × Butt Weld



		1/4	1/4 to 3/8	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T111	000000	3,000 psi @ 72° F	600 psi @ 220° F	4583T291	000000


		1/4	1/2 to 36	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T112	00000	3,000 psi @ 72° F	600 psi @ 220° F	4583T292	00000
		3/8	3/8 to 1/2	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T121	00000	3,000 psi @ 72° F	600 psi @ 220° F	4583T311	00000
		3/8	3/4 to 36	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T122	00000	3,000 psi @ 72° F	600 psi @ 220° F	4583T312	00000
		1/2	1/2	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T131	00000	3,000 psi @ 72° F	600 psi @ 220° F	4583T321	00000
		1/2	3/4 to 36	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T132	00000	3,000 psi @ 72° F	600 psi @ 220° F	4583T322	00000
		3/4	3/4 to 1 1/4	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T141	00000	3,000 psi @ 72° F	600 psi @ 220° F	4583T331	00000
		3/4	1 1/2 to 36	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T142	00000	3,000 psi @ 72° F	600 psi @ 220° F	4583T332	00000
		1	1	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T151	00000	3,000 psi @ 72° F	600 psi @ 220° F	4583T341	00000
		1	1 1/4 to 2 1/2	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T152	00000	3,000 psi @ 72° F	600 psi @ 220° F	4583T342	00000
		1	3 to 36	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T153	00000	3,000 psi @ 72° F	600 psi @ 220° F	4583T343	00000


		1 1/4	1 1/4 to 1 1/2	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T161	00000	—	—	———	0
		1 1/4	2 to 3 1/2	Seamless	3,000 psi @ 72° F	600 psi @ 220° F	4565T162	00000	—	—	———	0
		1 1/4	4 to 36	Seamless	—	—	———	0	3,000 psi @ 72° F	600 psi @ 220° F	4583T353	000000
		1 1/2	1 1/2	Seamless	2,800 psi @ 72° F	600 psi @ 220° F	4565T171	000000	—	—	———	0
		1 1/2	3 to 5	Seamless	2,800 psi @ 72° F	600 psi @ 220° F	4565T173	000000	2,800 psi @ 72° F	600 psi @ 220° F	4583T363	000000
		1 1/2	6 to 36	Seamless	2,800 psi @ 72° F	600 psi @ 220° F	4565T174	000000	2,800 psi @ 72° F	600 psi @ 220° F	4583T364	000000
		2	2	Seamless	2,500 psi @ 72° F	600 psi @ 220° F	4565T181	000000	—	—	———	0
		2	2 1/2 to 3 1/2	Seamless	2,500 psi @ 72° F	600 psi @ 220° F	4565T182	000000	2,500 psi @ 72° F	600 psi @ 220° F	4583T372	000000
		2	4 to 6	Seamless	2,500 psi @ 72° F	600 psi @ 220° F	4565T183	000000	2,500 psi @ 72° F	600 psi @ 220° F	4583T373	000000
		2	8 to 36	Seamless	2,500 psi @ 72° F	600 psi @ 220° F	4565T184	000000	2,500 psi @ 72° F	600 psi @ 220° F	4583T374	000000

Caps

Butt Weld

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

							304/304L Stainless Steel		316/316L Stainless Steel
	Pipe Size	Construction	OD	Pipe Schedule	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each		Each
Butt Weld



		1	Seamless	1 5/16"	80	Not Rated	Not Rated	1739K24	0000000	1741K24	0000000


		1 1/2	Seamless	1 29/32"	80	Not Rated	Not Rated	1739K25	000000	1741K25	000000
		2	Seamless	2 3/8"	80	Not Rated	Not Rated	1739K26	000000	1741K26	000000
		3	Seamless	3 1/2"	80	Not Rated	Not Rated	1739K27	000000	1741K27	000000

High-Pressure Stainless Steel Threaded Pipe Fittings

Use these heavy duty fittings in high-pressure flow applications.

Straight Adapters

Female x Butt

Weld

Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.

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

316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.

	Pipe Size		Dash Size			304 Stainless Steel				316 Stainless Steel
	(A)	(B)	(A)	(B)	Pressure Class	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Female × Butt Weld



		1/8	1/8	02	02	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K571	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K671	000000


		1/4	1/4	04	04	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K572	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K672	00000
		3/8	3/8	06	06	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K573	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K673	00000
		1/2	1/2	08	08	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K574	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K674	00000
		3/4	3/4	12	12	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K575	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K675	00000
		1	1	16	16	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K576	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K676	00000
		1 1/4	1 1/4	20	20	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K577	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K677	00000
		1 1/2	1 1/2	24	24	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K578	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K678	000000
		2	2	32	32	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K579	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K679	000000
		2 1/2	2 1/2	40	40	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K171	000000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K171	000000
		3	3	48	48	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K172	000000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K172	000000

High-Pressure Stainless Steel Socket-Connect Pipe Fittings

Forged for excellent strength, these heavy duty socket-connect fittings stand up to high-pressure applications. They are easier to weld than butt-weld fittings because the fitting doesn’t need to align perfectly to the pipe. Slide pipe into the socket and weld for a strong, permanent connection.

Straight Adapters

Female × Butt

Weld

Socket Connect Female × Butt Weld—Socket connect x butt weld straight adapters are also known as half couplings.

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

	Pipe Size		Dash Size				304/304L Stainless Steel				316/316L Stainless Steel
	(A)	(B)	(A)	(B)	OD	Pressure Class	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Socket Connect Female × Butt Weld



		1/8	1/8	02	02	3/4"	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K311	000000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K411	000000


		1/4	1/4	04	04	7/8"	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K312	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K412	00000
		3/8	3/8	06	06	1 1/16"	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K313	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K413	00000
		1/2	1/2	08	08	1 1/4"	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K314	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K414	00000
		3/4	3/4	12	12	1 1/2"	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K315	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K415	00000
		1	1	16	16	1 13/16"	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K316	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K416	00000
		1 1/2	1 1/2	24	24	2 1/2"	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K318	00000	—	—	———	0
		2	2	32	32	3"	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K319	000000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K419	000000

Tee Outlets

Female × Butt

Weld

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

			304/304L Stainless Steel				316/316L Stainless Steel
	Pipe Size (A)	For Pipe Size (B)	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Socket Connect Female × Butt Weld



		1/4	1/4 to 3/8	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N11	000000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N35	000000


		1/4	1/2 to 36	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N12	00000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N36	00000
		3/8	3/4 to 36	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N14	00000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N38	00000
		1/2	1/2	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N15	00000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N39	00000
		1/2	3/4 to 36	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N16	00000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N41	00000
		3/4	3/4 to 1 1/4	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N17	00000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N42	00000
		3/4	1 1/2 to 36	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N18	00000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N43	00000
		1	1	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N19	00000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N44	00000
		1	1 1/4 to 2 1/2	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N21	00000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N45	00000
		1	3 to 36	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N22	00000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N46	00000
		1 1/4	2 to 3 1/2	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N24	000000	—	—	———	0


		1 1/2	1 1/2	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N26	000000	—	—	———	0
		1 1/2	2 to 2 1/2	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N27	000000	—	—	———	0
		1 1/2	3 to 5	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N28	000000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N53	000000
		1 1/2	6 to 36	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N29	000000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N54	000000
		2	2	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N31	000000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N55	000000
		2	2 1/2 to 3 1/2	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N32	000000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N56	000000
		2	4 to 6	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N33	000000	2,900 psi @ 72° F	2,480 psi @ 212° F	1424N57	000000
		2	8 to 36	2,900 psi @ 72° F	2,400 psi @ 212° F	1424N34	000000	—	—	———	0

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.

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.

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







				1/4 Pipe Size

				1	Seamless	80	4804T111	000000	4815T111	000000


				3	Seamless	80	4804T112	00000	4815T112	000000
				6	Seamless	80	4804T113	000000	4815T113	000000




						3/8 Pipe Size

						1	Seamless	80	4804T121	00000	4815T121	00000


						3	Seamless	80	4804T122	00000	4815T122	000000
						6	Seamless	80	4804T123	000000	4815T123	000000




								1/2 Pipe Size

								1	Seamless	80	4804T131	00000	4815T131	00000


								3	Seamless	80	4804T132	000000	4815T132	000000
								6	Seamless	80	4804T133	000000	4815T133	000000




										3/4 Pipe Size

										1	Seamless	80	4804T141	00000	4815T141	00000


										3	Seamless	80	4804T142	000000	4815T142	000000
										6	Seamless	80	4804T143	000000	4815T143	000000




												1 Pipe Size

												1	Seamless	80	4804T151	00000	4815T151	00000


												3	Seamless	80	4804T152	000000	4815T152	000000
												6	Seamless	80	4804T153	000000	4815T153	000000




														1 1/2 Pipe Size

1														Seamless	80	4804T171	00000	4815T171	000000


3	Seamless													80	4804T172	000000	4815T172	000000
6	Seamless													80	4804T173	000000	4815T173	000000




		2 Pipe Size

		1	Seamless											80	4804T181	000000	4815T181	000000


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




				3 Pipe Size

				1	Seamless									80	4804T191	000000	4815T191	000000


				3	Seamless									80	4804T192	000000	4815T192	000000
				6	Seamless									80	4804T193	000000	4815T193	000000




						4 Pipe Size

						1	Seamless							80	4804T211	000000	4815T211	000000


						3	Seamless							80	4804T212	000000	4815T212	000000
						6	Seamless							80	4804T213	00000000	4815T213	00000000




								6 Pipe Size

								1	Seamless					80	4804T221	000000	4815T221	000000


								3	Seamless					80	4804T222	00000000	4815T222	00000000
								6	Seamless					80	4804T223	00000000	4815T223	00000000

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







				1/2 Pipe Size

				1	Seamless	160	2053K11	000000	2057K11	000000


				3	Seamless	160	2053K16	00000	2057K16	000000
				6	Seamless	160	2053K22	000000	2057K22	000000




						3/4 Pipe Size

						1	Seamless	160	2053K12	00000	2057K12	00000


						3	Seamless	160	2053K17	000000	2057K17	000000
						6	Seamless	160	2053K23	000000	2057K23	000000




								1 Pipe Size

								1	Seamless	160	2053K13	00000	2057K13	00000


								3	Seamless	160	2053K18	000000	2057K18	000000
								6	Seamless	160	2053K24	000000	2057K24	000000




										1 1/2 Pipe Size

										1	Seamless	160	2053K14	00000	2057K14	000000


										3	Seamless	160	2053K19	000000	2057K19	000000
										6	Seamless	160	2053K25	000000	2057K25	000000




												2 Pipe Size

												1	Seamless	160	2053K15	000000	2057K15	000000


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