McMaster-Carr

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	Thickness Thickness

0.005"

	Width Width

	Length Length

	Material Material

Hard Fiber

Wood

Carbon Fiber

	Performance Properties Performance Properties

	Color Color

	Gray
	Black

	Impact Strength Rating Impact Strength Rating

Good

Not Rated

	Tensile Strength Rating Tensile Strength Rating

Excellent

Good

	Flexural Strength Flexural Strength

16,000-29,000 psi

89,000-174,000 psi

	Electrical Insulation Rating Electrical Insulation Rating

Good

Poor

Not Rated

	Compressive Strength Compressive Strength

35,000 psi

75,000-128,000 psi

	Impact Strength Impact Strength

1.8-2.5 ft.-lbs./in.

Not Rated

	Water Absorption Rating Water Absorption Rating

Poor

Not Rated

	Appearance Appearance

Checked

Plain

	Specifications Met Specifications Met

Mil. Spec.

ANSI

CARB Compliant

	Dielectric Strength Dielectric Strength

195-215 V/mil

400 V/mil

Not Rated

	Hardness Rating Hardness Rating

Hard

Not Rated

	Hardness Hardness

Rockwell R70

Rockwell R80

Not Rated

	Tensile Strength Tensile Strength

9,000-21,000 psi

120,000-175,000 psi

	Density Density

0.043 lbs./cu. in.

0.05-0.067 lbs./cu. in.

	Maximum Temperature Maximum Temperature

180° F

235° F

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211 Products

About Composites

Color: Gray
Max. Temperature: 235° F
Tensile Strength: 9,000-21,000 psi (Good)
Impact Strength: 1.8-2.5 ft.-lbs./in. (Good)
Hardness: See table
For Use Outdoors: No
Specifications Met: See table

Also known as vulcanized fiber, these hard fiber sheets can be readily machined and punched into custom parts. They're constructed from lightweight cotton fabric that's been chemically treated to make them hard and dense. Use hard fiber to make gears and bushings.

12" × 12"
Thick.	Thick. Tolerance	Hardness	Specifications Met		Each
0.02"	-0.002" to 0.002"	Rockwell R70 (Hard)	MIL-I-695A, UL 94HB	0000000	00000
0.03"	-0.003" to 0.003"	Rockwell R70 (Hard)	MIL-I-695A, UL 94HB	0000000	00000
1/16"	-0.005" to 0.005"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	00000
3/32"	-0.007" to 0.007"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	00000
1/8"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	00000
3/16"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	00000
1/4"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	00000
3/8"	-0.02" to 0.02"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
1/2"	-0.025" to 0.025"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
24" × 39"
0.02"	-0.002" to 0.002"	Rockwell R70 (Hard)	MIL-I-695A, UL 94HB	0000000	00000
0.03"	-0.003" to 0.003"	Rockwell R70 (Hard)	MIL-I-695A, UL 94HB	0000000	00000
1/16"	-0.005" to 0.005"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	00000
3/32"	-0.007" to 0.007"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
1/8"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
3/16"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
1/4"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
3/8"	-0.02" to 0.02"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
1/2"	-0.025" to 0.025"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
39" × 48"
0.02"	-0.002" to 0.002"	Rockwell R70 (Hard)	MIL-I-695A, UL 94HB	0000000	00000
0.03"	-0.003" to 0.003"	Rockwell R70 (Hard)	MIL-I-695A, UL 94HB	0000000	00000
1/16"	-0.005" to 0.005"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
3/32"	-0.007" to 0.007"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
1/8"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
3/16"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
1/4"	-0.015" to 0.015"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
3/8"	-0.02" to 0.02"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000
1/2"	-0.025" to 0.025"	Rockwell R80 (Hard)	MIL-F-10336A, MIL-F-1148A, UL 94HB	0000000	000000

Electrically Insulating Hard Fiber

Color: Gray
Max. Temperature: 235° F
Tensile Strength: 9,000-21,000 psi (Good)
Impact Strength: 1.8-2.5 ft.-lbs./in. (Good)
Hardness: Rockwell R70 (Hard)
For Use Outdoors: No
Specifications Met: MIL-I-695A, UL 94HB

Widely known as fishpaper and vulcanized fiber, these thin sheets offer better electrical insulation than standard hard fiber sheets. They are constructed from lightweight cotton fabric that's been chemically treated to make it hard and dense.

12" × 12"
Thick.	Thick. Tolerance		Each
0.005"	-0.001" to 0.001"	0000000	00000
0.01"	-0.001" to 0.001"	0000000	0000
0.015"	-0.002" to 0.002"	0000000	0000
24" × 39"
0.005"	-0.001" to 0.001"	0000000	00000
0.01"	-0.001" to 0.001"	0000000	00000
0.015"	-0.002" to 0.002"	0000000	00000
39" × 48"
0.005"	-0.001" to 0.001"	0000000	00000
0.01"	-0.001" to 0.001"	0000000	00000
0.015"	-0.002" to 0.002"	0000000	00000

Ultra-Strength Lightweight Carbon Fiber Sheets and Bars

Color: Black
Temperature Range: See table
Tensile Strength: 120,000-175,000 psi (Excellent)
Impact Strength: Not Rated
Hardness: Not Rated
For Use Outdoors: No

Made of the strongest composite we offer, these carbon fiber sheets, bars, and strips are often used to build frames and structures. Carbon fiber is comparable in strength to 6061 aluminum yet lighter in weight.

Sheets

6" × 6"
Thick.	Thick. Tolerance	Appearance	Min. Temp.	Max. Temp., °F		Each
1/32"	-0.003" to 0.003"	Checked	Not Rated	180°	0000000	000000
1/16"	-0.004" to 0.004"	Checked	Not Rated	180°	0000000	00000
1/8"	-0.006" to 0.006"	Checked	Not Rated	180°	00000000	00000
3/16"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	00000
1/4"	-0.008" to 0.008"	Checked	Not Rated	180°	0000000	00000
3/8"	-0.018" to 0.018"	Checked	Not Rated	180°	0000000	00000
1/2"	-0.025" to 0.025"	Checked	Not Rated	180°	00000000	00000
3/4"	-0.037" to 0.037"	Checked	Not Rated	180°	00000000	000000
1"	-0.05" to 0.05"	Checked	Not Rated	180°	00000000	000000
6" × 12"
1/32"	-0.003" to 0.003"	Checked	Not Rated	180°	0000000	00000
1/16"	-0.004" to 0.004"	Checked	Not Rated	180°	0000000	00000
1/8"	-0.006" to 0.006"	Checked	Not Rated	180°	00000000	00000
3/16"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	00000
1/4"	-0.008" to 0.008"	Checked	Not Rated	180°	0000000	00000
3/8"	-0.018" to 0.018"	Checked	Not Rated	180°	0000000	000000
1/2"	-0.025" to 0.025"	Checked	Not Rated	180°	00000000	000000
3/4"	-0.037" to 0.037"	Checked	Not Rated	180°	00000000	000000
1"	-0.05" to 0.05"	Checked	Not Rated	180°	00000000	000000
12" × 12"
1/32"	-0.003" to 0.003"	Checked	Not Rated	180°	0000000	00000
1/16"	-0.004" to 0.004"	Checked	Not Rated	180°	0000000	00000
1/8"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	00000
3/16"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	000000
1/4"	-0.008" to 0.008"	Checked	Not Rated	180°	0000000	000000
3/8"	-0.018" to 0.018"	Checked	Not Rated	180°	0000000	000000
1/2"	-0.025" to 0.025"	Checked	Not Rated	180°	00000000	000000
3/4"	-0.037" to 0.037"	Checked	Not Rated	180°	00000000	000000
1"	-0.05" to 0.05"	Checked	Not Rated	180°	00000000	000000
12" × 24"
1/32"	-0.003" to 0.003"	Checked	Not Rated	180°	0000000	00000
1/16"	-0.004" to 0.004"	Checked	Not Rated	180°	0000000	000000
1/8"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	000000
3/16"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	000000
1/4"	-0.008" to 0.008"	Checked	Not Rated	180°	0000000	000000
12" × 36"
1/32"	-0.003" to 0.003"	Checked	Not Rated	180°	0000000	000000
1/16"	-0.004" to 0.004"	Checked	Not Rated	180°	0000000	000000
1/8"	-0.006" to 0.006"	Checked	Not Rated	180°	00000000	000000
3/16"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	000000
1/4"	-0.008" to 0.008"	Checked	Not Rated	180°	0000000	000000
3/8"	-0.018" to 0.018"	Checked	Not Rated	180°	0000000	000000
1/2"	-0.025" to 0.025"	Checked	Not Rated	180°	00000000	000000
3/4"	-0.037" to 0.037"	Checked	Not Rated	180°	00000000	00000000
1"	-0.05" to 0.05"	Checked	Not Rated	180°	00000000	00000000
12" × 48"
1/32"	-0.003" to 0.003"	Checked	Not Rated	180°	0000000	000000
1/16"	-0.004" to 0.004"	Checked	Not Rated	180°	0000000	000000
1/8"	-0.006" to 0.006"	Checked	Not Rated	180°	00000000	000000
3/16"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	000000
1/4"	-0.008" to 0.008"	Checked	Not Rated	180°	0000000	000000
3/8"	-0.018" to 0.018"	Checked	Not Rated	180°	0000000	000000
1/2"	-0.025" to 0.025"	Checked	Not Rated	180°	00000000	00000000
3/4"	-0.037" to 0.037"	Checked	Not Rated	180°	00000000	00000000
24" × 24"
1/32"	-0.003" to 0.003"	Checked	Not Rated	180°	0000000	000000
1/16"	-0.004" to 0.004"	Checked	Not Rated	180°	0000000	000000
1/8"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	000000
3/16"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	000000
1/4"	-0.008" to 0.008"	Checked	Not Rated	180°	0000000	000000
3/8"	-0.018" to 0.018"	Checked	Not Rated	180°	0000000	000000
1/2"	-0.025" to 0.025"	Checked	Not Rated	180°	00000000	00000000
3/4"	-0.037" to 0.037"	Checked	Not Rated	180°	00000000	00000000
24" × 48"
1/32"	-0.003" to 0.003"	Checked	Not Rated	180°	0000000	000000
1/16"	-0.004" to 0.004"	Checked	Not Rated	180°	0000000	000000
1/8"	-0.006" to 0.006"	Checked	Not Rated	180°	00000000	000000
3/16"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	000000
1/4"	-0.008" to 0.008"	Checked	Not Rated	180°	0000000	00000000
3/8"	-0.018" to 0.018"	Checked	Not Rated	180°	0000000	00000000
36" × 36"
1/32"	-0.003" to 0.003"	Checked	Not Rated	180°	0000000	000000
1/16"	-0.004" to 0.004"	Checked	Not Rated	180°	00000000	000000
1/8"	-0.006" to 0.006"	Checked	Not Rated	180°	00000000	000000
3/16"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	000000
1/4"	-0.008" to 0.008"	Checked	Not Rated	180°	0000000	00000000
3/8"	-0.018" to 0.018"	Checked	Not Rated	180°	0000000	00000000
48" × 48"
1/32"	-0.003" to 0.003"	Checked	Not Rated	180°	0000000	000000
1/16"	-0.004" to 0.004"	Checked	Not Rated	180°	00000000	000000
1/8"	-0.006" to 0.006"	Checked	Not Rated	180°	00000000	00000000
3/16"	-0.006" to 0.006"	Checked	Not Rated	180°	0000000	00000000

Plain Bars

Thick.	Thick. Tolerance	Wd.	Lg.	Min. Temp.	Max. Temp., °F		Each
0.019"	-0.005" to 0.005"	0.118"	48"	Not Rated	180°	0000000	000000
0.034"	-0.005" to 0.005"	0.121"	48"	Not Rated	180°	0000000	00000
0.04"	-0.005" to 0.005"	0.166"	48"	Not Rated	180°	0000000	00000
0.057"	-0.005" to 0.005"	0.177"	48"	Not Rated	180°	0000000	00000
0.07"	-0.005" to 0.005"	0.437"	48"	Not Rated	180°	0000000	00000
0.092"	-0.005" to 0.005"	0.220"	48"	Not Rated	180°	0000000	00000
1/8"	-0.005" to 0.005"	0.325"	12"	Not Rated	180°	0000000	00000
1/8"	-0.005" to 0.005"	1/2"	12"	Not Rated	180°	0000000	00000

Checked Bars

			12" Lg.		24" Lg.
Wd.	Min. Temp.	Max. Temp., °F		Each		Each
1/32" Thick. (-0.003" to 0.003")
1"	Not Rated	180°	0000000	00000	0000000	000000
2"	Not Rated	180°	0000000	0000	0000000	00000
3"	Not Rated	180°	0000000	00000	0000000	00000
1/16" Thick. (-0.004" to 0.004")
1"	Not Rated	180°	0000000	0000	0000000	00000
2"	Not Rated	180°	0000000	00000	0000000	00000
3"	Not Rated	180°	0000000	00000	0000000	00000
1/8" Thick. (-0.006" to 0.006")
1"	Not Rated	180°	0000000	00000	0000000	00000
2"	Not Rated	180°	0000000	00000	0000000	00000
3"	Not Rated	180°	0000000	00000	0000000	00000
3/16" Thick. (-0.006" to 0.006")
1"	Not Rated	180°	0000000	00000	0000000	00000
2"	Not Rated	180°	0000000	00000	0000000	00000
3"	Not Rated	180°	0000000	00000	0000000	00000
1/4" Thick. (-0.008" to 0.008")
1"	Not Rated	180°	00000000	00000	00000000	00000
2"	Not Rated	180°	00000000	00000	00000000	00000
3"	Not Rated	180°	00000000	00000	00000000	00000
3/8" Thick. (-0.018" to 0.018")
1"	Not Rated	180°	00000000	00000	00000000	00000
2"	Not Rated	180°	00000000	00000	00000000	000000
3"	Not Rated	180°	00000000	00000	00000000	000000
1/2" Thick. (-0.025" to 0.025")
1"	Not Rated	180°	00000000	00000	00000000	00000
2"	Not Rated	180°	00000000	00000	00000000	000000
3"	Not Rated	180°	00000000	00000	00000000	000000
3/4" Thick. (-0.037" to 0.037")
1"	Not Rated	180°	00000000	00000	00000000	00000
2"	Not Rated	180°	00000000	00000	00000000	000000
3"	Not Rated	180°	00000000	000000	00000000	000000
1" Thick. (-0.05" to 0.05")
1"	Not Rated	180°	00000000	00000	00000000	000000
2"	Not Rated	180°	00000000	000000	00000000	000000
3"	Not Rated	180°	00000000	000000	00000000	000000

Medium Density Fiberboard Sheets

Also known as MDF, these fiberboard sheets are smoother, denser, and more uniform than real wood, so they are often used as spoilboard and shelves. They meet the indoor formaldehyde emission requirements of ANSI A208.2 and the California Air Resources Board (CARB).

12" × 12"
Thick.	Thick. Tolerance		Each
1/4"	0" to 0.005"	0000000	00000
3/8"	0" to 0.005"	0000000	0000
1/2"	0" to 0.005"	0000000	0000
3/4"	0" to 0.005"	0000000	0000
1"	0" to 0.005"	0000000	0000
12" × 24"
1/4"	0" to 0.005"	0000000	0000
3/8"	0" to 0.005"	0000000	0000
1/2"	0" to 0.005"	0000000	0000
3/4"	0" to 0.005"	0000000	0000
1"	0" to 0.005"	0000000	00000
12" × 72"
1/4"	0" to 0.005"	0000000	00000
3/8"	0" to 0.005"	0000000	00000
1/2"	0" to 0.005"	0000000	00000
3/4"	0" to 0.005"	0000000	00000
1"	0" to 0.005"	0000000	00000
24" × 24"
1/4"	0" to 0.005"	0000000	0000
3/8"	0" to 0.005"	0000000	00000
1/2"	0" to 0.005"	0000000	00000
3/4"	0" to 0.005"	0000000	00000
1"	0" to 0.005"	0000000	00000
24" × 36"
1/4"	0" to 0.005"	0000000	00000
3/8"	0" to 0.005"	0000000	00000
1/2"	0" to 0.005"	0000000	00000
3/4"	0" to 0.005"	0000000	00000
1"	0" to 0.005"	0000000	00000
24" × 48"
1/4"	0" to 0.005"	0000000	00000
3/8"	0" to 0.005"	0000000	00000
1/2"	0" to 0.005"	0000000	00000
3/4"	0" to 0.005"	0000000	00000
1"	0" to 0.005"	0000000	00000
48" × 48"
1/4"	0" to 0.005"	0000000	00000
3/8"	0" to 0.005"	0000000	00000
1/2"	0" to 0.005"	0000000	00000
3/4"	0" to 0.005"	0000000	00000
1"	0" to 0.005"	0000000	00000
48" × 96"
1/4"	0" to 0.005"	0000000	00000
3/8"	0" to 0.005"	0000000	00000
1/2"	0" to 0.005"	0000000	00000
3/4"	0" to 0.005"	0000000	00000
1"	0" to 0.005"	0000000	000000

Terms and Conditions and Privacy Policy

About Composites

Easy-to-Machine Hard Fiber Sheets

Electrically Insulating Hard Fiber

Ultra-Strength Lightweight Carbon Fiber Sheets and Bars

Medium Density Fiberboard Sheets