Borosilicate Glass Rods And Discs

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System of Measurement

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Maximum Temperature

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Hardness

Modulus of Elasticity

63 kN/mm²

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Mil. Spec.

Minimum Temperature

Not Rated

Thermal Conductivity @ Temperature

7.8 BTU⋅in/(hr⋅ft²⋅°F) @ 194° F

1.2 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

8.3 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

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Export Control Classification Number (ECCN)

EAR99

Military Specification

Maximum Pressure

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Performance

88 Products

Borosilicate Glass Rods and Discs

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.

Also Available: Other disc sizes. Please select 8477K98 and specify the diameter and length.

Rods

					Temp.			12" Long		24" Long
	Dia.	Dia. Tolerance	Edge Fabrication	Mil. Spec.	Min.	Max., ° F	Color		Each		Each
Annealed



		1/2"	-0.020" to 0.020"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	0000000	000000


		5/8"	-0.024" to 0.024"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	0000000	00000
		3/4"	-0.031" to 0.031"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	0000000	00000
		1"	-0.039" to 0.039"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	0000000	00000
		1 1/4"	-0.051" to 0.051"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	0000000	00000
		1 1/2"	-0.067" to 0.067"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	0000000	000000
		2 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	000000	0000	000000	0000
		3 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	0000	0000000	0000
		4 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	0000	0000000	0000
		5 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	0000	0000000	0000
		6 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	0000	0000000	0000


		7 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	0000	0000000	0000
		8 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	0000	0000000	0000

Discs

					Temp.
	Dia.	Dia. Tolerance	Edge Fabrication	Mil. Spec.	Min.	Max., ° F	Color		1/8" Long	3/16" Long	1/4" Long	3/8" Long	1/2" Long	5/8" Long	3/4" Long
Annealed



		1"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	000000	000000	000000	000000	000000	000000	000000


		1 1/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		1 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		1 3/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		2 1/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		2 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		2 3/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		3"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		3 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		3 3/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	000000


		4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		4 1/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		4 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	00000
		5"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	00000	00000	000000
		5 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	00000	000000	000000	000000
		6"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	000000	000000	000000	000000
		6 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	0000000	00000	00000	00000	000000	000000	000000	000000

Borosilicate Glass Tubes

							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	0000000	00000


		0.375"	0.220"	0.079"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	0000
		0.5"	0.310"	0.094"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	00000
		0.5"	0.380"	0.063"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	0000
		0.625"	0.440"	0.094"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	00000
		0.625"	0.500"	0.063"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	0000
		0.75"	0.500"	0.126"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	00000
		0.75"	0.620"	0.063"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	00000
		0.875"	0.620"	0.126"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	00000
		1"	0.690"	0.157"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	00000
		1"	0.810"	0.094"	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	00000


		5 mm	0.600 mm	2.2 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	0000
		6 mm	1.200 mm	2.4 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	0000
		6 mm	2.700 mm	1.65 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	0000
		7 mm	3.000 mm	2 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	0000
		8 mm	3.000 mm	2.5 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	0000
		9 mm	3.000 mm	3 mm	12"	-0.031" to 0.031"	Ground	Not Rated	445	MIL-G-47033	Clear	0000000	00000

Pressure-Rated Borosilicate Glass Discs

Commonly used as sight glass. Also called Pyrex and Schott glass, borosilicate 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.

Tempered—Tempered glass is stronger than annealed glass.

							Temp.
	Dia.	Dia. Tolerance	Lg.	Lg. Tolerance	Edge Fabrication	Max. Pressure, psi	Min.	Max., ° F	Mil. Spec.	Color		Each
Annealed



		3 1/2"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	175	Not Rated	445	MIL-G-47033	Clear	0000000	000000


		4"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	150	Not Rated	445	MIL-G-47033	Clear	0000000	00000
		4 1/2"	-0.015" to 0.015"	3/8"	-0.031" to 0.031"	Ground	35	Not Rated	445	MIL-G-47033	Clear	0000000	00000
		5"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	100	Not Rated	445	MIL-G-47033	Clear	0000000	00000
		6"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	75	Not Rated	445	MIL-G-47033	Clear	0000000	000000
		6 3/4"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	55	Not Rated	445	MIL-G-47033	Clear	0000000	000000
		8 3/8"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	35	Not Rated	445	MIL-G-47033	Clear	0000000	000000


		Tempered



				3 1/2"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	525	Not Rated	500	MIL-G-2860	Clear	0000000	00000


				4"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	450	Not Rated	500	MIL-G-2860	Clear	0000000	00000
				4 1/2"	-0.015" to 0.015"	3/8"	-0.031" to 0.031"	Ground	100	Not Rated	500	MIL-G-2860	Clear	0000000	000000
				5"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	300	Not Rated	500	MIL-G-2860	Clear	0000000	000000
				6"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	225	Not Rated	500	MIL-G-2860	Clear	0000000	000000
				6 3/4"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	180	Not Rated	500	MIL-G-2860	Clear	0000000	000000
				8 3/8"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	105	Not Rated	500	MIL-G-2860	Clear	0000000	000000
				9"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	95	Not Rated	500	MIL-G-2860	Clear	0000000	000000
				10"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	85	Not Rated	500	MIL-G-2860	Clear	0000000	000000

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	00000000	000000


		1 1/4"	1"	1/8"	1 1/8"	-1/32" to 1/32"	Ground	150	Not Rated	212	Clear	0000000	00000
		1 1/2"	1 1/4"	1/8"	1 3/8"	-0.031" to 0.031"	Ground	130	Not Rated	212	Clear	0000000	00000
		1 3/4"	1 15/32"	9/64"	1 5/8"	-0.031" to 0.031"	Ground	130	Not Rated	212	Clear	0000000	00000
		2"	1 11/16"	5/32"	1 7/8"	-0.031" to 0.031"	Ground	110	Not Rated	185	Clear	0000000	00000
		2 1/4"	1 29/32"	11/64"	2 1/8"	-0.031" to 0.031"	Ground	105	Not Rated	185	Clear	0000000	00000
		2 1/2"	2 1/8"	3/16"	2 3/8"	-0.031" to 0.031"	Ground	100	Not Rated	185	Clear	0000000	00000
		3"	2 19/32"	13/64"	3"	-0.031" to 0.031"	Ground	85	Not Rated	150	Clear	0000000	00000
		3 1/2"	3 1/16"	7/32"	4"	-0.031" to 0.031"	Ground	60	Not Rated	150	Clear	0000000	00000
		4 1/4"	3 3/4"	1/4"	5"	-1/16" to 1/16"	Ground	50	Not Rated	125	Clear	0000000	00000
		5 1/2"	5"	1/4"	7"	-0.062" to 0.062"	Ground	35	Not Rated	100	Clear	00000000	000000