Carbon Fiber Gaskets | McMaster-Carr

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	Material Material

Carbon Fiber

Carbon/Rubber Blend

Graphene

	Shape Shape


Ring	Ring with Bolt Holes

Sheet and Bar

	For Pipe Size For Pipe Size

1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
10
12

	System of Measurement System of Measurement

Inch

Metric

	Thickness Thickness

	Maximum Temperature Maximum Temperature

500° to 999° F

1,000° to 1,999° F

	Color Color

	Black
	Gray
	Silver

	For Flange ANSI Class For Flange ANSI Class

150

	OD OD

	ID ID

	Backing Type Backing Type

	Plain

	Maximum Pressure Maximum Pressure

2,000 psi

3,500 psi

	Width Width

	Length Length

	Height Height

	Minimum Temperature Minimum Temperature

-250° F or less

-199° to -100° F

Not Rated

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

DFARS Specialty Metals
COTS-Exempt

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

REACH Compliant

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

RoHS Compliant

	Number of Bolt Holes Number of Bolt Holes

	Hardness Rating Hardness Rating

Not Rated

	Hardness Hardness

Not Rated

	Filler Material Filler Material

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58 Products

High-Temperature Oil-Resistant Carbon/Buna-N Pipe Gaskets

These blended carbon/Buna-N rubber gaskets are unaffected by oil and temperatures up to 650° F. Also known as ring gaskets, use them with raised-surface pipe flanges; they fit the surface inside the bolt holes and do not interfere with the bolt connection. Gaskets are compatible with low-pressure pipe flanges; all gasket specifications are sized to meet ANSI standards.

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

For ANSI Class 150
For Pipe Size	ID	OD	Thick.	Max. Pressure, psi	Temperature Range, °F	Color		Each
1/2	27/32"	1 7/8"	1/16"	2,000	-100° to 650°	Black	0000000	00000
3/4	1 1/16"	2 1/4"	1/16"	2,000	-100° to 650°	Black	0000000	0000
1	1 5/16"	2 5/8"	1/16"	2,000	-100° to 650°	Black	0000000	0000
1 1/4	1 21/32"	3"	1/16"	2,000	-100° to 650°	Black	0000000	0000
1 1/2	1 29/32"	3 3/8"	1/16"	2,000	-100° to 650°	Black	0000000	0000
2	2 3/8"	4 1/8"	1/16"	2,000	-100° to 650°	Black	0000000	0000
2 1/2	2 7/8"	4 7/8"	1/16"	2,000	-100° to 650°	Black	0000000	00000
3	3 1/2"	5 3/8"	1/16"	2,000	-100° to 650°	Black	0000000	00000
4	4 1/2"	6 7/8"	1/16"	2,000	-100° to 650°	Black	0000000	00000
5	5 9/16"	7 3/4"	1/16"	2,000	-100° to 650°	Black	0000000	00000
6	6 5/8"	8 3/4"	1/16"	2,000	-100° to 650°	Black	0000000	00000
8	8 5/8"	11"	1/16"	2,000	-100° to 650°	Black	0000000	00000
10	10 3/4"	13 3/8"	1/16"	2,000	-100° to 650°	Black	0000000	00000
12	12 3/4"	16 1/8"	1/16"	2,000	-100° to 650°	Black	0000000	00000

High-Temperature Oil-Resistant Carbon/Buna-N Pipe Gaskets with Bolt Holes

Carbon is blended with Buna-N rubber for gaskets that are unaffected by oil and temperatures up to 650° F. Commonly called full-face gaskets, they cover the entire face of flat-surface pipe flanges and align with the bolt holes. Gaskets are compatible with low-pressure pipe flanges; all gasket specifications are sized to meet ANSI standards.

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

For ANSI Class 150
For Pipe Size	ID	OD	Thick.	No. of Bolt Holes	Max. Pressure, psi	Temperature Range, °F	Color		Each
1/2	27/32"	3 1/2"	1/16"	4	2,000	-100° to 650°	Black	0000000	00000
3/4	1 1/16"	3 7/8"	1/16"	4	2,000	-100° to 650°	Black	0000000	0000
1	1 5/16"	4 1/4"	1/16"	4	2,000	-100° to 650°	Black	0000000	0000
1 1/4	1 21/32"	4 5/8"	1/16"	4	2,000	-100° to 650°	Black	0000000	0000
1 1/2	1 29/32"	5"	1/16"	4	2,000	-100° to 650°	Black	0000000	00000
2	2 3/8"	6"	1/16"	4	2,000	-100° to 650°	Black	0000000	00000
2 1/2	2 7/8"	7"	1/16"	4	2,000	-100° to 650°	Black	0000000	00000
3	3 1/2"	7 1/2"	1/16"	4	2,000	-100° to 650°	Black	0000000	00000
3 1/2	4"	8 1/2"	1/16"	8	2,000	-100° to 650°	Black	0000000	00000
4	4 1/2"	9"	1/16"	8	2,000	-100° to 650°	Black	0000000	00000
5	5 9/16"	10"	1/16"	8	2,000	-100° to 650°	Black	0000000	00000
6	6 5/8"	11"	1/16"	8	2,000	-100° to 650°	Black	0000000	00000
8	8 5/8"	13 1/2"	1/16"	8	2,000	-100° to 650°	Black	0000000	00000
10	10 3/4"	16"	1/16"	12	2,000	-100° to 650°	Black	0000000	00000
12	12 3/4"	19"	1/16"	12	2,000	-100° to 650°	Black	0000000	00000

High-Temperature Oil-Resistant Carbon/Buna-N Gasket Material

Made from a blend of carbon and Buna-N rubber, these gasket sheets are unaffected by oil and temperatures up to 650° F. Use them when a strong seal is required in boilers and furnaces. Cut with a utility knife.

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

1/64" Thick.
Wd.	Lg.	Max. Pressure, psi	Temperature Range, °F	Color		Each
6"	6"	2,000	-100° to 650°	Black	00000000	00000
15"	15"	2,000	-100° to 650°	Black	00000000	00000
30"	30"	2,000	-100° to 650°	Black	00000000	000000
1/32" Thick.
6"	6"	2,000	-100° to 650°	Black	00000000	00000
15"	15"	2,000	-100° to 650°	Black	00000000	00000
30"	30"	2,000	-100° to 650°	Black	00000000	000000
30"	60"	2,000	-100° to 650°	Black	00000000	000000
1/16" Thick.
6"	6"	2,000	-100° to 650°	Black	00000000	00000
15"	15"	2,000	-100° to 650°	Black	00000000	00000
30"	30"	2,000	-100° to 650°	Black	00000000	000000
30"	60"	2,000	-100° to 650°	Black	00000000	000000
1/8" Thick.
6"	6"	2,000	-100° to 650°	Black	00000000	00000
15"	15"	2,000	-100° to 650°	Black	00000000	000000
30"	30"	2,000	-100° to 650°	Black	00000000	000000
30"	60"	2,000	-100° to 650°	Black	00000000	000000

High-Speed Steam-Resistant Packing Seals

Made of graphite-impregnated carbon, these steam-resistant seals dissipate heat from the shaft to protect pumps and valves when operating at high speeds. Cut them to size with a knife; then pack them into place.

Wd.	Ht.	Max. Pressure, psi	Max. Pressure in Pumps, psi	Max. Pressure in Valves, psi	Max. Pressure in Steam, psi	Max. Speed, fpm	Temperature Range, °F	pH Resistance	Color	For Use With		5 ft.	10 ft.	25 ft.
1/8"	1/8"	3,500	500	3,500	3,500	4,400	-450° to 1200°	1-14	Gray	Steam, Water	000000	000000	000000	000000
3/16"	3/16"	3,500	500	3,500	3,500	4,400	-450° to 1200°	1-14	Gray	Steam, Water	000000	00000	00000	000000
1/4"	1/4"	3,500	500	3,500	3,500	4,400	-450° to 1200°	1-14	Gray	Steam, Water	000000	00000	00000	000000
5/16"	5/16"	3,500	500	3,500	3,500	4,400	-450° to 1200°	1-14	Gray	Steam, Water	0000000	00000	000000	000000
3/8"	3/8"	3,500	500	3,500	3,500	4,400	-450° to 1200°	1-14	Gray	Steam, Water	0000000	00000	000000	000000
7/16"	7/16"	3,500	500	3,500	3,500	4,400	-450° to 1200°	1-14	Gray	Steam, Water	0000000	000000	000000	000000
1/2"	1/2"	3,500	500	3,500	3,500	4,400	-450° to 1200°	1-14	Gray	Steam, Water	0000000	000000	000000	000000
5/8"	5/8"	3,500	500	3,500	3,500	4,400	-450° to 1200°	1-14	Gray	Steam, Water	0000000	000000	000000	000000
3/4"	3/4"	3,500	500	3,500	3,500	4,400	-450° to 1200°	1-14	Gray	Steam, Water	0000000	000000	000000	000000

Ultra-Conductive Graphene Sheets

This highly conductive graphene material is often used in electronic devices, such as cell phones, laptop computers, digital cameras, and LEDs. It can be folded without tearing or damaging the sheet and can be cut into smaller pieces with scissors. Thickness, width, and length tolerances are not rated.

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

Thickness	Thickness Tolerance	Width	Length		Each
0.001"	Not Rated	8"	8"	000000	000000

Ultra-Conductive Graphene on Silicon Wafers

Already set on a silicon wafer, these highly conductive graphene sheets are ready for use in semiconductors, advanced sensors, and electrodes. They are 200 times stronger than steel by weight and are also flexible. An oxide layer lies between the graphene and the silicon wafer for passivation and acts as a protective layer in device processing. Best stored under vacuum or in an inert atmosphere, these sheets come in a double vacuum-sealed bag to maintain shelf life.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Diameter	Material (Thickness)	Thickness Tolerance	Grain Size, microns		Each
4"	Graphene (0.335 nm), Oxide (285 nm), Silicon (525 microns)	Not Rated	40	0000000	0000000
6"	Graphene (0.335 nm), Oxide (285 nm), Silicon (675 microns)	Not Rated	40	0000000	000000

Ultra-Conductive Graphene on Copper Foil

Grown by chemical vapor deposition (CVD) on copper foil, this highly conductive graphene material can be transferred using chemical methods such as polymer-supported metal etching, and mechanical methods such as thermal release tape and direct transfer. This graphene foil is 200 times stronger than steel by weight and is also flexible. It comes taped to the corners of a plastic container in a double vacuum-sealed bag to maintain shelf life. Do not remove the packaging until ready to use. Gently peel the tape or cut the corners of the foil to release. Use rolling blades or precision knives to cut the foil.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

				3" × 3"		6" × 6"
Thickness, nm	Thickness Tolerance	Base Thickness, microns	Grain Size, microns		Each		Each
0.335	Not Rated	25	40	0000000	0000000	0000000	0000000