Ceramic Rounds | McMaster-Carr

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Material

Cubic Boron Nitride

Shape

OD

Diameter

Length

ID

Maximum Temperature

Less than 500° F

500° F to 999° F

1,000° F to 1,999° F

2,000° F to 2,999° F

3,000° F or greater

System of Measurement

Thickness

0.022" to 0.028"

0.028" to 0.036"

0.036" to 0.045"

0.056" to 0.071"

0.090" to 0.112"

0.146" to 0.174"

Mount Type

Unthreaded Hole

Thread Size

Screw Size

Color

Maximum Pull

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

Magnetic Pull Rating

Super Light Pull (<2 Lbs.)

Light Pull (2-10 Lbs.)

Medium Pull (10-30 Lbs.)

Heavy Pull (30-60 Lbs.)

Super Heavy Pull (>60 Lbs.)

Minimum Temperature

-250° F or less

-199° F to -100° F

-99° F to -1° F

Greater than 0° F

Width

Hardness

Knoop 19 HK 0.1

Rockwell 45N 70

Fabrication

Dielectric Strength

Porosity

Thermal Conductivity @ Temperature

4.5 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

7.98 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

10.16 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

15 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

194.5 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

319 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

138 BTU⋅in/(hr⋅ft²⋅°F) @ 20° C

1.265 W/(m⋅°C) @ 20° C

2 W/(m⋅°C) @ 20° C

2.2 W/(m⋅°C) @ 20° C

4 W/(m⋅°C) @ 20° C

20 W/(m⋅°C) @ 20° C

21 W/(m⋅°C) @ 20° C

29 W/(m⋅°C) @ 20° C

30 W/(m⋅°C) @ 20° C

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711 Products

Raw Materials

Ceramic

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

Fastening and Joining

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Insulating Washers

Insulating Washers

Isolate screws from electrical current and prevent corrosion from mating different metals

Magnets

Attract or repel metal objects to hang, secure, or position them

Fabricating and Machining

Tumbling Media

Use in tumblers to polish, finish, deburr, clean, or round the edges of metal parts

End Mills

Cut and shape material to create precise slots, grooves, and profiles

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