Glass Rounds | McMaster-Carr

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	Shape Shape


Ball	Half Round

Rod and Disc	Round Tube

	System of Measurement System of Measurement

Inch

Metric

	Diameter Diameter

	Length Length

	Color Color

	Clear
	White
	Gray
	Black
	Fluorescent Amber
	Fluorescent Blue
	Fluorescent Green
	Fluorescent Red

	Material Material

Ceramic

Glass

Plastic

	ID ID

	OD OD

	Wall Thickness Wall Thickness

	Maximum Temperature Maximum Temperature

	Clarity Clarity

Clear

Opaque

	Fabrication Fabrication

	Density Density

	Hardness Hardness

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Minimum Temperature Minimum Temperature

	Edge Fabrication Edge Fabrication

Ground

	Thermal Conductivity Thermal Conductivity

1.4 W/m-°C @ 20° C

7.8 Btu/hr. × in./sq. ft./°F @
194° F

1.2 Btu/hr. × in./sq. ft./°F @
212° F

7.98 Btu/hr. × in./sq. ft./°F @
212° F

8.3 Btu/hr. × in./sq. ft./°F @
212° F

10.16 Btu/hr. × in./sq. ft./°F @
212° F

	Refractive Index Refractive Index

1.46

1.47

	Modulus of Elasticity Modulus of Elasticity

	Performance Properties Performance Properties

Low Thermal Expansion

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

REACH Compliant

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733 Products

About Plastic

Borosilicate Glass Rods and Discs

Also called Pyrex and Schott glass, these glass rods and discs resist clouding and pitting and are highly chemical and heat resistant.

Pressure-Rated Borosilicate Glass Discs

Commonly used as sight glass.

Pressure-Rated Borosilicate Glass Tubes

These short glass tubes can be used as glass bowls in oil dispensers.

Borosilicate Glass Tubes

Also called Pyrex and Schott glass, these glass tubes resist clouding and pitting and are highly chemical and heat resistant.

Borosilicate Glass Balls

Also called Pyrex and Schott glass, these glass balls resist clouding and pitting and are highly chemical and heat resistant.

Ultra-High-Temperature Quartz Glass Rods and Discs

Able to withstand temperatures up to 2100° F, this quartz glass is useful in high-temperature applications that also require optical clarity, such as high-intensity lighting, fiber-optic production, and optical lens systems.

Ultra-High-Temperature Quartz Glass Tubes

Blistering temperatures won’t melt these quartz tubes, and rapid temperature shifts won’t cause them to crack.

Very High-Temperature Easy-to-Machine
Glass-Mica Ceramic Rods

Also known as Macor, these glass-mica ceramic rods withstand temperatures up to 1470° F.

Easy-to-Machine Glass-Mica Ceramic Rods

Machine complicated shapes and precision parts from these glass-mica ceramic bars in a fraction of the time it would take using other types of fired ceramic.

Clear Plastic

Clear Scratch- and UV-Resistant
Cast Acrylic Rods and Discs

Cast acrylic is easier to machine than extruded acrylic. It's comparable to Lucite and Plexiglas® Acrylic.

Clear Scratch- and UV-Resistant Cast Acrylic Tubes

Cast acrylic is easier to machine than extruded acrylic. It's comparable to Lucite and Plexiglas® Acrylic.

Clear Scratch- and UV-Resistant Acrylic Tubes

This extruded acrylic offers similar performance as cast acrylic at a lower cost.

Clear Scratch- and UV-Resistant Acrylic Rods and Discs

This extruded acrylic offers similar performance as cast acrylic at a lower cost.

Clear Scratch- and UV-Resistant Acrylic Balls

This extruded acrylic offers similar performance as cast acrylic at a lower cost.

Clear Scratch- and UV-Resistant Acrylic Half Rounds

This extruded acrylic offers similar performance as cast acrylic at a lower cost.

Clear Impact-Resistant Polycarbonate Tubes

At only half the weight of glass, polycarbonate maintains excellent impact resistance across a wide temperature range. It's comparable to Lexan, Hyzod, Tuffak, and Makrolon.

Clear Impact-Resistant Polycarbonate Rods and Discs

At only half the weight of glass, polycarbonate maintains excellent impact resistance across a wide temperature range. It's comparable to Lexan, Hyzod, Tuffak, and Makrolon.

Clear Impact-Resistant Polycarbonate Balls

At only half the weight of glass, polycarbonate maintains excellent impact resistance across a wide temperature range. It's comparable to Lexan, Hyzod, Tuffak, and Makrolon.

Clear Chemical-Resistant PVC Rods

Because PVC resists acids and alkalies, it is often used in tanks and chemical-processing applications where visibility is essential.

Clear Easy-to-Form PETG Tubes

PETG can be formed into complex shapes without sacrificing durability.

Clear Easy-to-Form PETG Rods

PETG can be formed into complex shapes without sacrificing durability.

Clear Cellulose Tubes

Widely used as shipping tubes, this cellulose is also known as butyrate.

Multipurpose Plastic

Chemical-Resistant PVC Rods and Discs

Because PVC resists many acids and alkalies, it’s widely used for tanks and in chemical-processing applications. Also known as PVC Type 1.

Chemical-Resistant PVC Tubes

Because PVC resists many acids and alkalies, it’s widely used for tanks and in chemical-processing applications. Also known as PVC Type 1.

Impact-Resistant Polycarbonate Rods

Polycarbonate maintains good impact resistance across a wide temperature range. It's comparable to Lexan, Hyzod, Tuffak, and Makrolon.

High-Strength Glass-Filled
Impact-Resistant Polycarbonate Rods

The addition of glass fibers to this polycarbonate increases tensile strength for use in structural applications.

Mirrored Scratch-Resistant Acrylic Discs

Resistant to scratches and scuffs, mirrored acrylic is an economical alternative to mirrored polycarbonate.