Carbon Bumpers | McMaster-Carr

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System of Measurement

Thickness

Shape

Width

Length

Flow Rating

Texture

REACH

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Performance

Maximum Temperature

Tensile Strength

Pores per Inch

Surface Resistivity

Clarity

Export Control Classification Number (ECCN)

EAR99

Minimum Temperature

Not Rated

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

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Color

18 Products

Porous Conductive Carbon


Low Flow	Medium Flow	High Flow

Often used in filtering, this brittle, glass-like carbon has pores that allow fluid and air to flow through. Its low surface resistivity also makes it a good electrical conductor. This material is also temperature and chemical resistant.

								3" × 3"		6" × 6"
	Thk.	Thk. Tolerance	Tensile Strength, psi	Surface Resistivity, ohm/sq.	Texture	Color	Max. Temp., ° F		Each		Each
Low Flow (100 Pores per Inch)



		1/4"	0.00" to 0.03"	50	7.87 × 10^-2	Rough	Gray	600	3947K113	0000000	3947K143	0000000


		1/2"	0.00" to 0.03"	50	3.94 × 10^-2	Rough	Gray	600	3947K123	000000	3947K153	000000
		1"	0.00" to 0.03"	50	1.96 × 10^-2	Rough	Gray	600	3947K133	000000	3947K163	000000


		Medium Flow (60 Pores per Inch)



				1/4"	0.00" to 0.03"	40	7.87 × 10^-2	Rough	Gray	600	3947K112	000000	3947K142	000000


				1/2"	0.00" to 0.03"	40	3.94 × 10^-2	Rough	Gray	600	3947K122	000000	3947K152	000000
				1"	0.00" to 0.03"	40	1.96 × 10^-2	Rough	Gray	600	3947K132	000000	3947K162	000000


				High Flow (20 Pores per Inch)



						1/4"	0.00" to 0.03"	30	7.87 × 10^-2	Rough	Gray	600	3947K111	000000	3947K141	000000


						1/2"	0.00" to 0.03"	30	3.94 × 10^-2	Rough	Gray	600	3947K121	000000	3947K151	000000
						1"	0.00" to 0.03"	30	1.96 × 10^-2	Rough	Gray	600	3947K131	000000	3947K161	000000