Boron Nitride Ceramic | McMaster-Carr

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	Material Material

Boron Nitride

Ceramic

	Shape Shape

	Sheet and Bar
	Rod and Disc

	Form Form

	Powder

	System of Measurement System of Measurement

Inch

	Thickness Thickness

	Width Width

	Length Length

12"

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

RoHS Compliant

	Particle Size Particle Size

0.07 microns

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

DFARS Specialty Metals
COTS-Exempt

	Dielectric Strength Dielectric Strength

1,270 V/mil

	Color Color

	White

	Maximum Temperature Maximum Temperature

Less than 1,500° F

	Minimum Temperature Minimum Temperature

32° F

	Thermal Conductivity Thermal Conductivity

319 Btu/hr. × in./sq. ft./°F @
212° F

	Electrical Properties Electrical Properties

Electrical Insulating

	Compressive Strength Compressive Strength

16,000 psi

	Container Size Container Size

2 oz.

	Fabrication Fabrication

Sintered

	Modulus of Elasticity Modulus of Elasticity

0.091 ksi × 10⁶

	Flexural Strength Flexural Strength

11,000 psi

	Density Density

0.076 lbs./cu. in.

	Porosity Porosity

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

REACH Compliant

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39 Products

Electrical-Insulating Boron-Nitride Ceramic Sheets and Bars

Color: White
Temperature Range: 32° F to 1,020° F
Fabrication: Sintered
Electrical Properties: Electrical Insulating
Dielectric Strength: 1,270 V/mil
Porosity: 7%
Compressive Strength: 16,000 psi

Also known as white graphite, boron-nitride ceramic is an excellent electrical insulator that is often used in high-temperature, high-power electrical applications, such as arc welding and semiconductor equipment. It's a low-friction material with a slippery feel.

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

Sheets

Thick.	Thick. Tolerance	Wd.	Lg.		Each
1/16"	-0.010" to 0.010"	3"	5"	00000000	0000000
1/8"	-0.010" to 0.010"	5"	6"	00000000	000000
1/4"	-0.010" to 0.010"	5"	12"	00000000	000000
3/8"	-0.010" to 0.010"	5"	6"	00000000	000000
3/8"	-0.010" to 0.010"	5"	12"	00000000	000000
1/2"	-0.010" to 0.010"	5"	12"	00000000	00000000

Bars

			6" Lg.		12" Lg.
Thick.	Thick. Tolerance	Wd.		Each		Each
1/8"	-0.010" to 0.010"	1/8"	00000000	000000	00000000	000000
1/4"	-0.010" to 0.010"	1/4"	00000000	00000	00000000	000000
3/8"	-0.010" to 0.010"	3/8"	00000000	00000	00000000	000000
1/2"	-0.010" to 0.010"	1/2"	00000000	00000	00000000	000000
3/4"	-0.010" to 0.010"	3/4"	00000000	000000	00000000	000000
1"	-0.010" to 0.010"	1"	00000000	000000	00000000	000000
1 1/2"	-0.010" to 0.010"	1 1/2"	00000000	000000	00000000	000000
2"	-0.010" to 0.010"	2"	00000000	000000	00000000	00000000

Electrical-Insulating Boron-Nitride Ceramic Rods

Color: White
Temperature Range: 32° F to 1,020° F
Electrical Properties: Electrical Insulating
Dielectric Strength: 1,270 V/mil
Porosity: 7%
Compressive Strength: 16,000 psi

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

		6" Lg.		12" Lg.
Dia.	Dia. Tolerance		Each		Each
1/8"	0.000" to 0.020"	00000000	000000	00000000	000000
1/4"	0.000" to 0.020"	00000000	00000	00000000	000000
3/8"	0.000" to 0.020"	00000000	00000	00000000	000000
1/2"	0.000" to 0.020"	00000000	000000	00000000	000000
3/4"	0.000" to 0.020"	00000000	000000	00000000	000000
1"	0.000" to 0.020"	00000000	000000	00000000	000000
1 1/4"	0.000" to 0.020"	00000000	000000	00000000	000000
1 1/2"	0.000" to 0.020"	00000000	000000	00000000	000000

Additives and Fillers for Paints, Coatings, and Lubricants

When mixed into coatings, resins, polymers, and metals, these fillers enhance strength, conductivity, lubricity, and other physical properties.

		Container
Material	Concentration	Net Weight	Type	Material	Form	Particle Size	CAS Number		Each
Boron Nitride	99%	2 oz.	Jar	Plastic	Powder	0.07 microns	10043-11-5	0000000	0000000