Glass Tubing | McMaster-Carr

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Maximum Pressure Maximum Pressure

35 psi

	Hardness Hardness

Knoop 418 KHN100

Knoop 570 KHN100

	Refractive Index Refractive Index

1.46

1.47

	Thermal Conductivity Thermal Conductivity

1.4 W/m-°C @ 20° C

1.2 Btu/hr. × in./sq. ft./°F @
212° F

8.3 Btu/hr. × in./sq. ft./°F @
212° F

	Modulus of Elasticity Modulus of Elasticity

63 KN/mm²

72 KN/mm²

	Maximum Steam Pressure Maximum Steam Pressure

	Maximum Liquid Pressure Maximum Liquid Pressure

	For Gauge Glass OD For Gauge Glass OD

1/2"

5/8"

3/4"

	Thickness Thickness

View catalog pages (4)

Forward

How can we improve?

211 Products

Borosilicate Glass Tubes

Color: Clear
Max. Temperature: 445° F
Fabrication: Annealed

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.

For technical drawings and 3-D models, click on a part number.

					12" Lg.
OD	ID	Wall Thick.	Edge Fabrication	Specifications Met		Each
Inch
0.25"	0.160"	0.047"	Ground	MIL-G-47033	0000000	00000
0.375"	0.220"	0.079"	Ground	MIL-G-47033	0000000	0000
0.5"	0.310"	0.094"	Ground	MIL-G-47033	0000000	0000
0.5"	0.380"	0.063"	Ground	MIL-G-47033	0000000	0000
0.625"	0.440"	0.094"	Ground	MIL-G-47033	0000000	00000
0.625"	0.500"	0.063"	Ground	MIL-G-47033	0000000	0000
0.75"	0.500"	0.126"	Ground	MIL-G-47033	0000000	00000
0.75"	0.620"	0.063"	Ground	MIL-G-47033	0000000	00000
0.875"	0.620"	0.126"	Ground	MIL-G-47033	0000000	00000
1"	0.690"	0.157"	Ground	MIL-G-47033	0000000	00000
1"	0.810"	0.094"	Ground	MIL-G-47033	0000000	00000
Metric
5mm	0.600mm	2.2mm	Ground	MIL-G-47033	0000000	0000
6mm	1.200mm	2.4mm	Ground	MIL-G-47033	0000000	0000
6mm	2.700mm	1.65mm	Ground	MIL-G-47033	0000000	0000
7mm	3.000mm	2mm	Ground	MIL-G-47033	0000000	0000
8mm	3.000mm	2.5mm	Ground	MIL-G-47033	0000000	0000
9mm	3.000mm	3mm	Ground	MIL-G-47033	0000000	0000

Pressure-Rated Borosilicate Glass Tubes

Color: Clear
Max. Temperature: See table
Fabrication: Annealed

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.

For technical drawings and 3-D models, click on a part number.

OD	ID	Wall Thick.	Lg.	Max. Pressure, psi	Max. Temperature, °F	Edge Fabrication		Each
1"	3/4"	1/8"	7/8"	190	212°	Ground	00000000	00000
1 1/4"	1"	1/8"	1 1/8"	150	212°	Ground	0000000	00000
1 1/2"	1 1/4"	1/8"	1 3/8"	130	212°	Ground	0000000	00000
1 3/4"	1 15/32"	1/8"	1 5/8"	130	212°	Ground	0000000	00000
2"	1 11/16"	9/64"	1 7/8"	110	185°	Ground	0000000	00000
2 1/4"	1 29/32"	3/16"	2 1/8"	105	185°	Ground	0000000	00000
2 1/2"	2 1/8"	3/16"	2 3/8"	100	185°	Ground	0000000	00000
3"	2 19/32"	3/16"	3"	85	150°	Ground	0000000	00000
3 1/2"	3 1/16"	7/32"	4"	60	150°	Ground	0000000	00000
4 1/4"	3 3/4"	1/4"	5"	50	125°	Ground	0000000	00000
5 1/2"	5"	1/4"	7"	35	100°	Ground	00000000	000000

Ultra-High-Temperature Quartz Glass Tubes

Color: Clear
Max. Temperature: 2000° F
Fabrication: Annealed

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.

For technical drawings and 3-D models, click on a part number.

				12" Lg.		48" Lg.
OD	ID	Wall Thick.	Edge Fabrication		Each		Each
Inch
0.25"	0.157"	0.043"	Ground	0000000	00000	00000000	000000
0.375"	0.276"	0.05"	Ground	0000000	0000	00000000	00000
0.5"	0.413"	0.044"	Ground	0000000	0000	00000000	00000
0.625"	0.551"	0.039"	Ground	0000000	0000	00000000	00000
0.75"	0.630"	0.059"	Ground	0000000	00000	00000000	00000
0.875"	0.748"	0.059"	Ground	0000000	00000	00000000	00000
1"	0.866"	0.074"	Ground	0000000	00000	00000000	00000
Metric
3mm	1.000mm	1mm	Ground	00000000	0000	00000000	0000
4mm	2.000mm	1mm	Ground	00000000	0000	00000000	0000
5mm	3.000mm	1mm	Ground	00000000	0000	00000000	0000
6mm	4.000mm	1mm	Ground	00000000	0000	00000000	0000
7mm	5.000mm	1mm	Ground	00000000	0000	00000000	00000
8mm	6.000mm	1mm	Ground	00000000	0000	00000000	00000
9mm	7.000mm	1mm	Ground	0000000	0000	00000000	00000
10mm	8.000mm	1mm	Ground	0000000	0000	00000000	00000
11mm	9.000mm	1mm	Ground	0000000	0000	00000000	00000
12mm	10.000mm	1mm	Ground	0000000	0000	00000000	00000
13mm	11.000mm	1mm	Ground	0000000	0000	00000000	00000
14mm	12.000mm	1mm	Ground	0000000	0000	00000000	00000
15mm	13.000mm	1mm	Ground	0000000	0000	00000000	00000
16mm	14.000mm	1mm	Ground	0000000	0000	00000000	00000
17mm	15.000mm	1mm	Ground	0000000	0000	00000000	00000
18mm	16.000mm	1mm	Ground	0000000	0000	00000000	00000
19mm	16.000mm	1.5mm	Ground	0000000	00000	00000000	00000
20mm	17.000mm	1.5mm	Ground	0000000	00000	00000000	00000
21.6mm	18.000mm	1.8mm	Ground	0000000	00000	00000000	00000
22mm	19.000mm	1.5mm	Ground	0000000	00000	00000000	00000
23mm	20.000mm	1.5mm	Ground	0000000	00000	00000000	00000
24mm	20.000mm	2mm	Ground	0000000	00000	00000000	00000
25mm	22.000mm	1.5mm	Ground	0000000	00000	00000000	00000

Tubular Gauge Glass

Glass

Glass With Easy-View Red Line

Replace existing gauge glass or combine with valves and guard rods to build your own level indicator. Cut to size with a glass tube cutter (not included).

Glass with easy-view red line emphasizes the liquid level so it’s easier to read.

			Max. Pressure			Each
Lg.	Wall Thick.	Temp. Range Max., °F	Liquid	Steam		1-5	6-Up
Glass
1/2" OD
8"	5/64"	425°	460 psi @ 150° F	340 psi @ 425° F	0000000	000000	00000
9"	5/64"	425°	445 psi @ 150° F	335 psi @ 425° F	0000000	00000	0000
10"	5/64"	425°	445 psi @ 150° F	335 psi @ 425° F	0000000	00000	0000
11"	5/64"	425°	435 psi @ 150° F	325 psi @ 425° F	0000000	00000	0000
12"	5/64"	425°	435 psi @ 150° F	325 psi @ 425° F	0000000	00000	00000
13"	5/64"	425°	415 psi @ 150° F	315 psi @ 425° F	0000000	00000	00000
14"	5/64"	425°	415 psi @ 150° F	315 psi @ 425° F	0000000	00000	00000
15"	5/64"	425°	405 psi @ 150° F	310 psi @ 425° F	0000000	00000	00000
16"	5/64"	425°	400 psi @ 150° F	300 psi @ 425° F	0000000	00000	00000
17"	5/64"	425°	385 psi @ 150° F	295 psi @ 425° F	0000000	00000	00000
18"	5/64"	425°	385 psi @ 150° F	295 psi @ 425° F	0000000	00000	00000
20"	5/64"	425°	375 psi @ 150° F	285 psi @ 425° F	0000000	00000	00000
22"	5/64"	425°	355 psi @ 150° F	280 psi @ 425° F	0000000	00000	00000
23"	5/64"	425°	340 psi @ 150° F	270 psi @ 425° F	0000000	00000	00000
24"	5/64"	425°	340 psi @ 150° F	270 psi @ 425° F	0000000	00000	00000
30"	5/64"	150°	295 psi @ 150° F	Not Rated	0000000	00000	00000
36"	5/64"	150°	260 psi @ 150° F	Not Rated	0000000	00000	00000
42"	5/64"	150°	205 psi @ 150° F	Not Rated	0000000	00000	00000
48"	5/64"	150°	205 psi @ 150° F	Not Rated	0000000	00000	00000
5/8" OD
8"	3/32"	425°	435 psi @ 150° F	320 psi @ 425° F	0000000	00000	00000
9"	3/32"	425°	420 psi @ 150° F	315 psi @ 425° F	0000000	00000	00000
10"	3/32"	425°	420 psi @ 150° F	315 psi @ 425° F	0000000	00000	00000
11"	3/32"	425°	410 psi @ 150° F	305 psi @ 425° F	0000000	00000	00000
12"	3/32"	425°	410 psi @ 150° F	305 psi @ 425° F	0000000	00000	00000
13"	3/32"	425°	390 psi @ 150° F	295 psi @ 425° F	0000000	00000	00000
14"	3/32"	425°	390 psi @ 150° F	295 psi @ 425° F	0000000	00000	00000
15"	3/32"	425°	380 psi @ 150° F	290 psi @ 425° F	0000000	00000	00000
16"	3/32"	425°	375 psi @ 150° F	285 psi @ 425° F	0000000	00000	00000
17"	3/32"	425°	360 psi @ 150° F	280 psi @ 425° F	0000000	00000	00000
18"	3/32"	425°	360 psi @ 150° F	280 psi @ 425° F	0000000	00000	00000
20"	3/32"	425°	350 psi @ 150° F	270 psi @ 425° F	0000000	00000	00000
22"	3/32"	425°	335 psi @ 150° F	265 psi @ 425° F	0000000	00000	00000
23"	3/32"	425°	320 psi @ 150° F	255 psi @ 425° F	0000000	00000	00000
24"	3/32"	425°	320 psi @ 150° F	255 psi @ 425° F	0000000	00000	00000
30"	3/32"	150°	280 psi @ 150° F	Not Rated	0000000	00000	00000
36"	3/32"	150°	245 psi @ 150° F	Not Rated	0000000	00000	00000
42"	3/32"	150°	195 psi @ 150° F	Not Rated	0000000	00000	00000
48"	3/32"	150°	195 psi @ 150° F	Not Rated	0000000	00000	00000
3/4" OD
8"	7/64"	425°	425 psi @ 150° F	315 psi @ 425° F	0000000	00000	0000
9"	7/64"	425°	410 psi @ 150° F	310 psi @ 425° F	0000000	00000	00000
10"	7/64"	425°	410 psi @ 150° F	310 psi @ 425° F	0000000	00000	00000
11"	7/64"	425°	400 psi @ 150° F	300 psi @ 425° F	0000000	00000	00000
12"	7/64"	425°	400 psi @ 150° F	300 psi @ 425° F	0000000	00000	00000
13"	7/64"	425°	385 psi @ 150° F	290 psi @ 425° F	0000000	00000	00000
14"	7/64"	425°	385 psi @ 150° F	290 psi @ 425° F	0000000	00000	00000
15"	7/64"	425°	375 psi @ 150° F	285 psi @ 425° F	0000000	00000	00000
16"	7/64"	425°	370 psi @ 150° F	280 psi @ 425° F	0000000	00000	00000
17"	7/64"	425°	355 psi @ 150° F	275 psi @ 425° F	0000000	00000	00000
18"	7/64"	425°	355 psi @ 150° F	275 psi @ 425° F	0000000	00000	00000
20"	7/64"	425°	345 psi @ 150° F	265 psi @ 425° F	0000000	00000	00000
22"	7/64"	425°	330 psi @ 150° F	260 psi @ 425° F	0000000	00000	00000
23"	7/64"	425°	315 psi @ 150° F	250 psi @ 425° F	0000000	00000	00000
24"	7/64"	425°	315 psi @ 150° F	250 psi @ 425° F	0000000	00000	00000
30"	7/64"	150°	275 psi @ 150° F	Not Rated	0000000	00000	00000
36"	7/64"	150°	240 psi @ 150° F	Not Rated	0000000	00000	00000
42"	7/64"	150°	190 psi @ 150° F	Not Rated	0000000	00000	00000
48"	7/64"	150°	190 psi @ 150° F	Not Rated	0000000	00000	00000
Glass with Easy-View Red Line
1/2" OD
8"	5/64"	425°	390 psi @ 150° F	300 psi @ 425° F	0000000	00000	00000
9"	5/64"	425°	370 psi @ 150° F	295 psi @ 425° F	0000000	00000	00000
10"	5/64"	425°	370 psi @ 150° F	295 psi @ 425° F	0000000	00000	00000
11"	5/64"	425°	360 psi @ 150° F	295 psi @ 425° F	0000000	00000	00000
12"	5/64"	425°	360 psi @ 150° F	295 psi @ 425° F	0000000	00000	00000
13"	5/64"	425°	345 psi @ 150° F	290 psi @ 425° F	0000000	00000	00000
14"	5/64"	425°	345 psi @ 150° F	290 psi @ 425° F	0000000	00000	00000
15"	5/64"	425°	335 psi @ 150° F	285 psi @ 425° F	0000000	00000	00000
16"	5/64"	425°	335 psi @ 150° F	285 psi @ 425° F	0000000	00000	00000
17"	5/64"	425°	325 psi @ 150° F	280 psi @ 425° F	0000000	00000	00000
18"	5/64"	425°	325 psi @ 150° F	280 psi @ 425° F	0000000	00000	00000
20"	5/64"	425°	310 psi @ 150° F	280 psi @ 425° F	0000000	00000	00000
22"	5/64"	425°	280 psi @ 150° F	270 psi @ 425° F	0000000	00000	00000
23"	5/64"	425°	280 psi @ 150° F	270 psi @ 425° F	0000000	00000	00000
24"	5/64"	425°	280 psi @ 150° F	270 psi @ 425° F	0000000	00000	00000
30"	5/64"	150°	250 psi @ 150° F	Not Rated	0000000	00000	00000
36"	5/64"	150°	215 psi @ 150° F	Not Rated	0000000	00000	00000
42"	5/64"	150°	175 psi @ 150° F	Not Rated	0000000	00000	00000
48"	5/64"	150°	175 psi @ 150° F	Not Rated	0000000	00000	00000
5/8" OD
8"	3/32"	425°	370 psi @ 150° F	280 psi @ 425° F	0000000	00000	00000
9"	3/32"	425°	345 psi @ 150° F	275 psi @ 425° F	0000000	00000	00000
10"	3/32"	425°	345 psi @ 150° F	275 psi @ 425° F	0000000	00000	00000
11"	3/32"	425°	335 psi @ 150° F	275 psi @ 425° F	0000000	00000	00000
12"	3/32"	425°	335 psi @ 150° F	275 psi @ 425° F	0000000	00000	00000
13"	3/32"	425°	325 psi @ 150° F	270 psi @ 425° F	0000000	00000	00000
14"	3/32"	425°	325 psi @ 150° F	270 psi @ 425° F	0000000	00000	00000
15"	3/32"	425°	315 psi @ 150° F	265 psi @ 425° F	0000000	00000	00000
16"	3/32"	425°	315 psi @ 150° F	265 psi @ 425° F	0000000	00000	00000
17"	3/32"	425°	305 psi @ 150° F	260 psi @ 425° F	0000000	00000	00000
18"	3/32"	425°	305 psi @ 150° F	260 psi @ 425° F	0000000	00000	00000
20"	3/32"	425°	290 psi @ 150° F	260 psi @ 425° F	0000000	00000	00000
22"	3/32"	425°	265 psi @ 150° F	250 psi @ 425° F	0000000	00000	00000
23"	3/32"	425°	265 psi @ 150° F	250 psi @ 425° F	0000000	00000	00000
24"	3/32"	425°	265 psi @ 150° F	250 psi @ 425° F	0000000	00000	00000
30"	3/32"	150°	235 psi @ 150° F	Not Rated	0000000	00000	00000
36"	3/32"	150°	205 psi @ 150° F	Not Rated	0000000	00000	00000
42"	3/32"	150°	165 psi @ 150° F	Not Rated	0000000	00000	00000
48"	3/32"	150°	165 psi @ 150° F	Not Rated	0000000	00000	00000
3/4" OD
8"	7/64"	425°	360 psi @ 150° F	280 psi @ 425° F	0000000	00000	00000
9"	7/64"	425°	340 psi @ 150° F	275 psi @ 425° F	0000000	00000	00000
10"	7/64"	425°	340 psi @ 150° F	275 psi @ 425° F	0000000	00000	00000
11"	7/64"	425°	330 psi @ 150° F	275 psi @ 425° F	0000000	00000	00000
12"	7/64"	425°	330 psi @ 150° F	275 psi @ 425° F	0000000	00000	00000
13"	7/64"	425°	320 psi @ 150° F	270 psi @ 425° F	0000000	00000	00000
14"	7/64"	425°	320 psi @ 150° F	270 psi @ 425° F	0000000	00000	00000
15"	7/64"	425°	310 psi @ 150° F	265 psi @ 425° F	0000000	00000	00000
16"	7/64"	425°	310 psi @ 150° F	265 psi @ 425° F	0000000	00000	00000
17"	7/64"	425°	300 psi @ 150° F	260 psi @ 425° F	0000000	00000	00000
18"	7/64"	425°	300 psi @ 150° F	260 psi @ 425° F	0000000	00000	00000
20"	7/64"	425°	285 psi @ 150° F	260 psi @ 425° F	0000000	00000	00000
22"	7/64"	425°	260 psi @ 150° F	250 psi @ 425° F	0000000	00000	00000
23"	7/64"	425°	260 psi @ 150° F	250 psi @ 425° F	0000000	00000	00000
24"	7/64"	425°	260 psi @ 150° F	250 psi @ 425° F	0000000	00000	00000
30"	7/64"	150°	230 psi @ 150° F	Not Rated	0000000	00000	00000
36"	7/64"	150°	200 psi @ 150° F	Not Rated	0000000	00000	00000
42"	7/64"	150°	160 psi @ 150° F	Not Rated	0000000	00000	00000
48"	7/64"	150°	160 psi @ 150° F	Not Rated	0000000	00000	00000

Gaskets for Tubular Gauge Glass

Seal the glass on your level indicator.

For technical drawings and 3-D models, click on a part number.

				Max. Pressure		Temp. Range, °F
For Gauge Glass OD	OD	ID	Thick.	Liquid	Steam	Min.	Max.	Color	Pkg. Qty.		Pkg.
Neoprene Rubber
1/2"	11/16"	7/16"	5/16"	Not Rated	Not Rated	-10°	200°	Gray	24	0000000	00000
5/8"	13/16"	9/16"	5/16"	Not Rated	Not Rated	-10°	200°	Gray	24	0000000	0000
3/4"	15/16"	11/16"	5/16"	Not Rated	Not Rated	-10°	200°	Gray	24	0000000	00000
3/4"	1 1/4"	3/4"	1/4"	Not Rated	Not Rated	-10°	200°	Gray	24	0000000	00000
EPDM Rubber
1/2"	11/16"	7/16"	5/16"	Not Rated	Not Rated	Not Rated	300°	Black	24	0000000	00000
5/8"	27/32"	39/64"	11/32"	Not Rated	Not Rated	Not Rated	300°	Black	24	0000000	00000
3/4"	29/32"	47/64"	25/64"	Not Rated	Not Rated	Not Rated	300°	Black	12	0000000	00000
TFE Plastic with Hypalon Rubber
5/8"	15/16"	5/8"	7/16"	Not Rated	Not Rated	-65°	450°	White	1	0000000	0000
3/4"	15/16"	3/4"	7/16"	Not Rated	Not Rated	-65°	450°	White	1	0000000	0000