Precision Ground Glass | McMaster-Carr

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Shape

System of Measurement

Diameter

Length

Material

Thickness

Color

Width

Maximum Temperature

OD

ID

Fabrication

Hardness

Knoop 418 HK 0.1

Knoop 420 HK 0.1

Knoop 570 HK 0.1

Vickers 649 HV 0.2

Vickers 651 HV 0.2

Edge Fabrication

REACH

Refractive Index

Density

Thermal Conductivity @ Temperature

7.8 BTU⋅in/(hr⋅ft²⋅°F) @ 194° F

1.2 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

10.23 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

1.4 W/(m⋅°C) @ 20° C

1.3 W/(m⋅°C) @ 100° C

Modulus of Elasticity

RoHS

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Performance

High Temperature

Impact Resistant

Scratch Resistant

Wall Thickness

Military Specification

Maximum Pressure

Less than 75 psi

75 psi to 99 psi

100 psi to 149 psi

150 psi to 249 psi

250 psi or greater

How can we improve?

274 Products

Glass

Ultra-High-Temperature Quartz Glass Rods and Discs

Ultra-High-Temperature Quartz Glass Rods and Discs

Withstand temperatures up to 2100° F in applications that require optical clarity

Borosilicate Glass Rods and Discs

Borosilicate Glass Rods and Discs

Resists clouding and pitting, also highly chemical and heat resistant

Ultra-High-Temperature Quartz Glass Sheets

Ultra-High-Temperature Quartz Glass Sheets

Won't deform in up to 2100° F or from drastic temperature changes

Ultra-High-Temperature Quartz Glass Tubes

Ultra-High-Temperature Quartz Glass Tubes

Won't deform in up to 2000° F or from drastic temperature changes

Borosilicate Glass Tubes

Borosilicate Glass Tubes

Resists clouding and pitting, also highly chemical and heat resistant

Borosilicate Glass Balls

Borosilicate Glass Balls

Resists clouding and pitting, also highly chemical and heat resistant

Pressure-Rated Borosilicate Glass Discs

Pressure-Rated Borosilicate Glass Discs

Commonly used as sight glass

Impact- and Scratch-Resistant Corning® Gorilla® Glass

Impact- and Scratch-Resistant Corning® Gorilla® Glass

Made of chemically strengthened aluminosilicate to handle more wear and tear

Super-Flexible Corning® Willow® Glass

Super-Flexible Corning® Willow® Glass

Bends like plastic but is eight times harder

Antimicrobial and Scratch-Resistant Corning® Gorilla® Glass

Antimicrobial and Scratch-Resistant Corning® Gorilla® Glass

Resist bacteria, mold, mildew, algae, and fungi

Other Products

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)