Annealed Tubing | McMaster-Carr

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System of Measurement

Shape

Length

Wall Thickness

Material

Alloy 20 Stainless Steel

Color

Maximum Temperature

Clarity

Fabrication

Performance

Ultra High Temperature

Hardness

RoHS

Minimum Temperature

REACH

For Use With

Modulus of Elasticity

63 kN/mm²

72 kN/mm²

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

Yes

Thermal Conductivity @ Temperature

1.2 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

8.3 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

Density

Refractive Index

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Fitting Connection

Pipe Size

71 Products

Ultra-High-Temperature Quartz Glass Tubes

Blistering temperatures won’t melt these quartz tubes, and rapid temperature shifts won’t cause them to crack. Even tougher than borosilicate, they can be used in furnaces and ovens heated up to 2000° F. These highly pure tubes are often used in laboratories because they won’t leach impurities into samples or contaminate chemical reactions. Quartz tubes are optically clear and have excellent UV transmission, making them ideal for UV purification systems.

							Temp.
	OD	ID	Wall Thk.	Lg.	Lg. Tolerance	Edge Fabrication	Min.	Max., ° F	Color		Each
Annealed



		0.25"	0.157"	0.043"	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N11	00000


		0.375"	0.276"	0.05"	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N12	0000
		0.5"	0.413"	0.044"	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N13	0000
		0.625"	0.551"	0.039"	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N14	00000
		0.75"	0.630"	0.059"	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N15	00000
		0.875"	0.748"	0.059"	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N16	00000
		1"	0.866"	0.074"	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N17	00000
		3 mm	1.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N411	0000
		4 mm	2.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N413	0000
		5 mm	3.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N415	0000
		6 mm	4.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N417	0000


		7 mm	5.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N419	0000
		8 mm	6.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N422	0000
		9 mm	7.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N18	0000
		10 mm	8.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N19	0000
		11 mm	9.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N21	0000
		12 mm	10.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N22	0000
		13 mm	11.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N23	0000
		14 mm	12.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N24	0000
		15 mm	13.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N25	0000
		16 mm	14.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N26	00000


		17 mm	15.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N27	00000
		18 mm	16.000 mm	1 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N28	00000
		19 mm	16.000 mm	1.5 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N29	00000
		20 mm	17.000 mm	1.5 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N31	00000
		21.6 mm	18.000 mm	1.8 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N32	00000
		22 mm	19.000 mm	1.5 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N33	00000
		23 mm	20.000 mm	1.5 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N34	00000
		24 mm	20.000 mm	2 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N35	00000
		25 mm	22.000 mm	1.5 mm	12"	-0.126" to 0.126"	Ground	Not Rated	2,000	Clear	4100N36	00000

Borosilicate Glass Tubes

Also called Pyrex and Schott glass, this glass resists clouding and pitting and is highly chemical and heat resistant. With a low rate of thermal expansion, it stays dimensionally stable during changes in temperature.

							Temp.
	OD	ID	Wall Thk.	Lg.	Lg. Tolerance	Edge Fabrication	Min.	Max., ° F	Mil. Spec.	Color		Each
Annealed



		0.25"	0.160"	0.047"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K31	00000


		0.375"	0.220"	0.079"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K33	0000
		0.5"	0.310"	0.094"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K35	00000
		0.5"	0.380"	0.063"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K37	0000
		0.625"	0.440"	0.094"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K39	00000
		0.625"	0.500"	0.063"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K41	00000
		0.75"	0.500"	0.126"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K43	00000
		0.75"	0.620"	0.063"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K45	00000
		0.875"	0.620"	0.126"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K47	00000
		1"	0.690"	0.157"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K49	00000
		1"	0.810"	0.094"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K51	00000


		5 mm	0.600 mm	2.2 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K57	0000
		6 mm	1.200 mm	2.4 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K65	0000
		6 mm	2.700 mm	1.65 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K66	0000
		7 mm	3.000 mm	2 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K76	0000
		8 mm	3.000 mm	2.5 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K86	0000
		9 mm	3.000 mm	3 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	8729K96	00000

Pressure-Rated Borosilicate Glass Tubes

These short glass tubes can be used as glass bowls in oil dispensers. Borosilicate glass resists clouding and pitting and is highly chemical resistant. With a low rate of thermal expansion, it stays dimensionally stable during changes in temperature.

								Temp.
	OD	ID	Wall Thk.	Lg.	Lg. Tolerance	Edge Fabrication	Max. Pressure, psi	Min.	Max., ° F	Color		Each
Annealed



		1"	3/4"	1/8"	7/8"	-0.031" to 0.031"	Ground	190	Not Rated	212	Clear	1176K311	000000


		1 1/4"	1"	1/8"	1 1/8"	-1/32" to 1/32"	Ground	150	Not Rated	212	Clear	1176K21	00000
		1 1/2"	1 1/4"	1/8"	1 3/8"	-0.031" to 0.031"	Ground	130	Not Rated	212	Clear	1176K22	00000
		1 3/4"	1 15/32"	9/64"	1 5/8"	-0.031" to 0.031"	Ground	130	Not Rated	212	Clear	1176K23	00000
		2"	1 11/16"	5/32"	1 7/8"	-0.031" to 0.031"	Ground	110	Not Rated	185	Clear	1176K24	00000
		2 1/4"	1 29/32"	11/64"	2 1/8"	-0.031" to 0.031"	Ground	105	Not Rated	185	Clear	1176K25	00000
		2 1/2"	2 1/8"	3/16"	2 3/8"	-0.031" to 0.031"	Ground	100	Not Rated	185	Clear	1176K26	00000
		3"	2 19/32"	13/64"	3"	-0.031" to 0.031"	Ground	85	Not Rated	150	Clear	1176K27	00000
		3 1/2"	3 1/16"	7/32"	4"	-0.031" to 0.031"	Ground	60	Not Rated	150	Clear	1176K28	00000
		4 1/4"	3 3/4"	1/4"	5"	-1/16" to 1/16"	Ground	50	Not Rated	125	Clear	1176K29	00000
		5 1/2"	5"	1/4"	7"	-0.062" to 0.062"	Ground	35	Not Rated	100	Clear	1176K312	000000

Medium-Pressure Stainless Steel Threaded Pipe Fittings

Choose these fittings when you want the same high-quality found in our low-pressure pipe fittings, but need more strength to handle higher pressures.

Bushing Straight Reducing Adapters

Male x Female

Alloy 20 Stainless Steel—These fittings have the best corrosion resistance of all the stainless steel fittings we offer. Alloy 20 stainless steel is also known as Carpenter 20 and resists cracking from stress and corrosion.

	Pipe Size				Alloy 20 Stainless Steel
	(A)	(B)	Pressure Class	Body Shape		Each
NPT Male × NPT Female



		1/4	1/8	Not Rated	Hex	2698K315	0000000


		3/8	1/4	Not Rated	Hex	2698K314	000000
		1/2	1/4	Not Rated	Hex	2698K311	000000
		3/4	1/2	Not Rated	Hex	2698K312	000000
		1	3/4	Not Rated	Hex	2698K313	000000

External-Hex-Drive Plugs

Male

					Alloy 20 Stainless Steel
	Pipe Size	Construction	Pressure Class	Body Shape		Each
NPT Male



		1/8	Solid	Not Rated	Hex	2698K214	0000000


		1/4	Solid	Not Rated	Hex	2698K215	000000
		3/8	Solid	Not Rated	Hex	2698K216	000000
		1/2	Solid	Not Rated	Hex	2698K211	000000
		3/4	Solid	Not Rated	Hex	2698K212	000000
		1	Solid	Not Rated	Hex	2698K213	000000
		1 1/2	Solid	Not Rated	Hex	2698K217	000000
		2	Solid	Not Rated	Hex	2698K218	000000