Standard Wall Galvanized Steel (Schedule 40) NPT Threaded Pipe

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304/304L Stainless Steel

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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

273 products

Adapter

Bridge the gap between pipe with different fitting connections

273 products

Fitting Type

Flange

Create an access point in your line for routine maintenance

10 products

Performance

Chemical Resistant

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

273 products

Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Intended for low-pressure flow, this pipe is also known as Schedule 40. It’s made of stainless steel for excellent corrosion resistance.

Pipe Adapters—Threaded on One End

Male × Butt Weld

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
NPT Male × Butt Weld/Socket Connect Male







				1/8 Pipe Size

				1"	Seamless	40	9157K14	00000	———	0


				1 1/2"	Seamless	40	9157K28	0000	———	0
				2"	Seamless	40	9157K39	0000	———	0
				2 1/2"	Seamless	40	9157K61	0000	———	0
				3"	Seamless	40	9157K49	0000	———	0
				3 1/2"	Seamless	40	9157K7	0000	9110T15	00000
				4"	Seamless	40	9157K59	0000	———	0
				4 1/2"	Seamless	40	———	0	9110T16	0000
				5"	Seamless	40	9157K702	0000	———	0
				6"	Seamless	40	9157K91	0000	———	0
				8"	Seamless	40	9157K704	00000	9110T19	00000


				10"	Seamless	40	9157K705	00000	9110T28	00000
				12"	Seamless	40	9157K706	00000	9110T29	00000




						1/4 Pipe Size

						1"	Seamless	40	9157K11	0000	9110T11	0000


						1 1/2"	Seamless	40	9157K21	0000	9110T21	0000
						2"	Seamless	40	9157K31	0000	9110T31	0000
						2 1/2"	Seamless	40	9157K62	0000	9110T41	0000
						3"	Seamless	40	9157K41	0000	9110T51	0000
						3 1/2"	Seamless	40	9157K71	0000	9110T39	0000
						4"	Seamless	40	9157K51	0000	9110T61	0000
						4 1/2"	Seamless	40	9157K711	0000	———	0
						5"	Seamless	40	9157K712	0000	9110T87	00000
						5 1/2"	Seamless	40	9157K713	00000	———	0
						6"	Seamless	40	9157K92	00000	9110T71	00000


						8"	Seamless	40	9157K714	00000	9110T891	00000
						10"	Seamless	40	9157K715	00000	9110T892	00000
						12"	Seamless	40	9157K716	00000	9110T893	00000




								3/8 Pipe Size

								1"	Seamless	40	9157K12	0000	9110T12	0000


								1 1/2"	Seamless	40	9157K22	0000	9110T22	0000
								2"	Seamless	40	9157K32	0000	9110T32	0000
								2 1/2"	Seamless	40	9157K63	0000	9110T42	0000
								3"	Seamless	40	9157K42	0000	9110T52	0000
								3 1/2"	Seamless	40	9157K72	0000	———	0
4"								Seamless	40	9157K52	0000	9110T62	00000
4 1/2"	Seamless							40	9157K721	00000	9110T895	00000
5"	Seamless							40	9157K722	00000	9110T896	00000
5 1/2"	Seamless							40	9157K723	00000	———	0
6"	Seamless							40	9157K93	00000	9110T72	00000


8"	Seamless	40	9157K724					00000	9110T898	00000
10"	Seamless	40	9157K725					00000	9110T899	00000
12"	Seamless	40	9157K726					00000	9110T911	00000




		1/2 Pipe Size

		1"	Welded					40	9157K13	0000	9110T13	0000


		1 1/2"	Welded					40	9157K23	0000	9110T23	0000
		2"	Welded					40	9157K33	0000	9110T33	0000
		2 1/2"	Welded					40	9157K64	0000	9110T43	0000
		3"	Welded					40	9157K43	0000	9110T53	0000
		3 1/2"	Welded					40	9157K73	0000	9110T912	00000
		4"	Welded					40	9157K53	0000	9110T63	00000
		4 1/2"	Welded					40	9157K731	0000	9110T913	00000
		5"	Welded					40	9157K732	00000	9110T914	00000
		5 1/2"	Welded					40	9157K733	00000	9110T915	00000
		6"	Welded					40	9157K94	00000	9110T73	00000


		8"	Welded	40	9157K734			00000	9110T916	00000
		10"	Welded	40	9157K735			00000	9110T917	00000
		12"	Welded	40	9157K736			00000	9110T918	00000




				3/4 Pipe Size

				1"	Welded			40	9157K15	0000	9110T14	0000


				1 1/2"	Welded			40	9157K24	0000	9110T24	0000
				2"	Welded			40	9157K34	0000	9110T34	0000
				2 1/2"	Welded			40	9157K65	0000	9110T44	0000
				3"	Welded			40	9157K44	0000	9110T54	0000
				3 1/2"	Welded			40	9157K74	0000	9110T919	00000
				4"	Welded			40	9157K54	0000	9110T64	00000
				4 1/2"	Welded			40	9157K741	00000	9110T921	00000
				5"	Welded			40	9157K742	00000	9110T922	00000
				5 1/2"	Welded			40	9157K743	00000	———	0
				6"	Welded			40	9157K95	00000	9110T74	00000


				8"	Welded	40	9157K744	00000	9110T924	00000
				10"	Welded	40	9157K745	00000	9110T925	00000
				12"	Welded	40	9157K746	00000	9110T926	00000




						1 Pipe Size

						1 1/2"	Welded	40	9157K25	0000	9110T25	0000


						2"	Welded	40	9157K35	0000	9110T35	0000
						2 1/2"	Welded	40	9157K66	0000	9110T45	00000
						3"	Welded	40	9157K45	0000	9110T55	00000
						3 1/2"	Welded	40	9157K75	00000	9110T927	00000
						4"	Welded	40	9157K55	00000	9110T65	00000
						4 1/2"	Welded	40	9157K751	00000	9110T928	00000
						5"	Welded	40	9157K752	00000	9110T929	00000
						5 1/2"	Welded	40	9157K753	00000	9110T931	00000
						6"	Welded	40	9157K96	00000	9110T75	00000
8"						Welded	40	9157K754	00000	9110T932	00000


10"	Welded					40	9157K755	00000	9110T933	00000
12"	Welded					40	9157K756	00000	9110T934	00000




						1 1/4 Pipe Size

						1 1/2"	Welded	40	9157K26	0000	9110T26	0000


						2"	Welded	40	9157K36	0000	9110T36	00000
						2 1/2"	Welded	40	9157K67	00000	9110T46	00000
						3"	Welded	40	9157K46	00000	9110T56	00000
						3 1/2"	Welded	40	9157K76	00000	———	0
						4"	Welded	40	9157K56	00000	9110T66	00000
						4 1/2"	Welded	40	9157K761	00000	———	0
						5"	Welded	40	9157K762	00000	9110T937	00000
						6"	Welded	40	9157K97	00000	9110T76	00000
						8"	Welded	40	9157K764	00000	9110T939	00000
						10"	Welded	40	9157K765	00000	9110T941	00000


		12"	Welded			40	9157K766	00000	9110T942	00000




						1 1/2 Pipe Size

						1 1/2"	Welded	40	9157K27	0000	9110T27	00000


						2"	Welded	40	9157K37	0000	9110T37	00000
						2 1/2"	Welded	40	9157K68	00000	9110T47	00000
						3"	Welded	40	9157K47	00000	9110T57	00000
						3 1/2"	Welded	40	9157K77	00000	9110T943	00000
						4"	Welded	40	9157K57	00000	9110T67	00000
						4 1/2"	Welded	40	9157K771	00000	———	0
						5"	Welded	40	9157K772	00000	9110T945	00000
						5 1/2"	Welded	40	9157K773	00000	———	0
						6"	Welded	40	9157K98	00000	9110T77	00000
						8"	Welded	40	9157K774	00000	9110T947	00000


				10"		Welded	40	9157K775	00000	9110T948	00000
				12"	Welded	40	9157K776	00000	9110T949	00000




						2 Pipe Size

						2"	Welded	40	9157K38	00000	9110T38	00000


						2 1/2"	Welded	40	9157K69	00000	9110T48	00000
						3"	Welded	40	9157K48	00000	9110T58	00000
						3 1/2"	Welded	40	9157K78	00000	9110T951	00000
						4"	Welded	40	9157K58	00000	9110T68	00000
						4 1/2"	Welded	40	9157K781	00000	9110T952	00000
						5"	Welded	40	9157K782	00000	9110T953	00000
						5 1/2"	Welded	40	9157K783	00000	9110T954	00000
						6"	Welded	40	9157K99	00000	9110T78	00000
						8"	Welded	40	9157K784	00000	9110T955	00000
						10"	Welded	40	9157K785	00000	9110T956	00000


12"						Welded	40	9157K786	00000	9110T957	00000




						2 1/2 Pipe Size

						2 1/2"	Welded	40	9157K601	00000	———	0


						3"	Welded	40	9157K401	00000	———	0
						3 1/2"	Welded	40	9157K79	00000	9110T958	00000
						4"	Welded	40	9157K501	00000	———	0
						4 1/2"	Welded	40	———	0	9110T959	00000
						5"	Welded	40	9157K792	00000	9110T961	00000
						5 1/2"	Welded	40	9157K793	00000	———	0
						6"	Welded	40	9157K901	00000	———	0
						8"	Welded	40	9157K794	00000	9110T963	000000
						10"	Welded	40	9157K795	00000	———	0
						12"	Welded	40	9157K796	00000	9110T965	000000




						3 Pipe Size

						2 1/2"	Welded	40	9157K602	00000	9110T49	00000


						3"	Welded	40	9157K402	00000	9110T59	00000
						3 1/2"	Welded	40	9157K8	00000	9110T966	00000
						4"	Welded	40	9157K502	00000	9110T69	00000
						4 1/2"	Welded	40	9157K801	00000	———	0
						5"	Welded	40	9157K802	00000	9110T968	00000
						5 1/2"	Welded	40	9157K803	00000	———	0
						6"	Welded	40	9157K902	00000	9110T79	00000
						8"	Welded	40	9157K804	00000	9110T971	000000
						10"	Welded	40	9157K805	000000	9110T972	000000
						12"	Welded	40	9157K806	000000	9110T973	000000




								4 Pipe Size

				2 1/2"				Welded	40	9157K603	00000	9110T82	00000


				3"	Welded			40	9157K403	00000	9110T83	00000
				3 1/2"	Welded			40	9157K81	00000	———	0
				4"	Welded			40	9157K503	00000	9110T84	00000
				4 1/2"	Welded			40	9157K811	00000	———	0
				5"	Welded			40	9157K812	00000	———	0
				6"	Welded			40	9157K903	00000	9110T85	000000
				8"	Welded			40	9157K814	000000	9110T978	000000
				10"	Welded			40	9157K815	000000	———	0
				12"	Welded			40	9157K816	000000	———	0




								6 Pipe Size

								3 1/2"	Welded	40	9157K82	000000	———	0


								4"	Welded	40	9157K504	000000	———	0
6"								Welded	40	9157K904	000000	———	0

Low-Pressure Iron and Steel Threaded Pipe Flanges

Create an access point in low-pressure lines. To install, bolt two flanges of the same size together with a gasket (not included). Made of iron or steel, flanges perform best in noncorrosive environments.

Forged Flanges


Front	Raised Surface on Back

Forged flanges have better strength than cast flanges.

A350 Carbon Steel—Even in temperatures as low as -46° F, these flanges won’t become brittle, so they absorb impact better than other low-pressure steel flanges.

	Pipe Size					Bolt Hole
	(A)	(B)	Flanged Connection Surface (B)	Flange OD	For Bolt Dia.	Dia.	No. Of	Bolt Circle Dia.	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Female



		1/2	1/2	Raised	3 1/2"	1/2"	5/8"	4	2 3/8"	150	A350 Carbon Steel	285 psi @ 72° F	230 psi @ 300° F	5281N11	000000


		3/4	3/4	Raised	3 7/8"	1/2"	5/8"	4	2 3/4"	150	A350 Carbon Steel	285 psi @ 72° F	230 psi @ 300° F	5281N12	00000
		1	1	Raised	4 1/4"	1/2"	5/8"	4	3 1/8"	150	A350 Carbon Steel	285 psi @ 72° F	230 psi @ 300° F	5281N13	00000
		1 1/4	1 1/4	Raised	4 5/8"	1/2"	5/8"	4	3 1/2"	150	A350 Carbon Steel	285 psi @ 72° F	230 psi @ 300° F	5281N14	00000
		1 1/2	1 1/2	Raised	5"	1/2"	5/8"	4	3 7/8"	150	A350 Carbon Steel	285 psi @ 72° F	230 psi @ 300° F	5281N15	00000
		2	2	Raised	6"	5/8"	3/4"	4	4 3/4"	150	A350 Carbon Steel	285 psi @ 72° F	230 psi @ 300° F	5281N16	00000
		2 1/2	2 1/2	Raised	7"	5/8"	3/4"	4	5 1/2"	150	A350 Carbon Steel	285 psi @ 72° F	230 psi @ 300° F	5281N17	00000
		3	3	Raised	7 1/2"	5/8"	3/4"	4	6"	150	A350 Carbon Steel	285 psi @ 72° F	230 psi @ 300° F	5281N18	00000
		4	4	Raised	9"	5/8"	3/4"	8	7 1/2"	150	A350 Carbon Steel	285 psi @ 72° F	230 psi @ 300° F	5281N19	00000
		6	6	Raised	11"	3/4"	7/8"	8	9 1/2"	150	A350 Carbon Steel	285 psi @ 72° F	230 psi @ 300° F	5281N21	000000