Alumina Oxide Square Rods

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Material

Ceramic

System of Measurement

Thickness

Shape

Width

Length

Maximum Temperature

Porosity

Thermal Conductivity @ Temperature

159 BTU⋅in/(hr⋅ft²⋅°F) @ 68° F

171 BTU⋅in/(hr⋅ft²⋅°F) @ 68° F

4.5 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

194.5 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

Color

Tensile Strength

Performance

Electrically Insulating

Ultra High Temperature

Dielectric Strength

Compressive Strength

Export Control Classification Number (ECCN)

Density

Flexural Strength

Hardness

Clarity

Fabrication

REACH

Minimum Temperature

RoHS

DFARS Specialty Metals

Exempt

Refractive Index

1.77

1.78

Modulus of Elasticity

35 Products

About Composites

Compare our offering of composites to find the right material for you.

Nonporous Ceramic Alumina Sheets and Bars

Seal out air and gas in high-temperature and high-wear applications. This ultrahard ceramic can also be used in applications that require superior strength.

Sheets

				Temp.
Thk.	Thk. Tolerance	Wd.	Lg.	Min.	Max., ° F	Dielectric Strength, V/mil	Color	Fabrication	Performance	Porosity	Compressive Strength, psi		Each
0.010"	-0.001" to 0.001"	4 1/2"	4 1/2"	Not Rated	3,100	250	White	Fired	Electrically Insulating	0%	300,000	0000000	000000
0.015"	-0.002" to 0.002"	4 1/2"	4 1/2"	Not Rated	2,910	210	White	Fired	Electrically Insulating	0%	300,000	0000000	00000
0.020"	-0.002" to 0.002"	4 1/2"	4 1/2"	Not Rated	2,910	210	White	Fired	Electrically Insulating	0%	300,000	0000000	00000
0.025"	-0.006" to 0.006"	4 1/2"	4 1/2"	Not Rated	3,100	250	White	Fired	Electrically Insulating	0%	300,000	0000000	00000
0.030"	-0.003" to 0.003"	4 1/2"	4 1/2"	Not Rated	2,910	210	White	Fired	Electrically Insulating	0%	300,000	0000000	00000
0.035"	-0.004" to 0.004"	4 1/2"	4 1/2"	Not Rated	2,910	210	White	Fired	Electrically Insulating	0%	300,000	0000000	00000
0.040"	-0.004" to 0.004"	4 1/2"	4 1/2"	Not Rated	2,910	210	White	Fired	Electrically Insulating	0%	300,000	0000000	00000
0.060"	-0.002" to 0.002"	4 1/2"	4 1/2"	Not Rated	3,100	250	White	Fired	Electrically Insulating	0%	300,000	0000000	000000
0.080"	-0.002" to 0.002"	4 1/2"	4 1/2"	Not Rated	3,100	250	White	Fired	Electrically Insulating	0%	300,000	0000000	000000
0.100"	-0.008" to 0.008"	4 1/2"	4 1/2"	Not Rated	3,100	250	White	Fired	Electrically Insulating	0%	300,000	0000000	000000

Bars

				Temp.
Thk.	Thk. Tolerance	Wd.	Lg.	Min.	Max., ° F	Dielectric Strength, V/mil	Color	Fabrication	Porosity	Compressive Strength, psi		Each
0.125"	-0.004" to 0.004"	1/8"	12"	Not Rated	3,075	220	White	Fired	0%	300,000	00000000	000000
0.250"	-0.008" to 0.008"	1/4"	12"	Not Rated	3,075	220	White	Fired	0%	300,000	00000000	00000

Ultra-High-Temperature Easy-Machine Ceramic Alumina Sheets

Commonly used in induction furnace components and hot glass handling, this ceramic alumina withstands higher temperatures than alumina bisque ceramic. The 99% alumina content makes it suitable for high-vacuum applications. It has excellent machinability. Material comes fired and is unaffected by water.

			Temp.								3" × 3"		6" × 6"		12" × 12"		24" × 24"
Thk.	Thk. Tolerance	Color	Min.	Max., ° F	Fabrication	Performance	Dielectric Strength, V/mil	Porosity	Compressive Strength, psi	Hardness		Each		Each		Each		Each



	1/32"	-0.020" to 0.020"	White	Not Rated	3,000	Fired	Easy Machine, Ultra High Temperature	75	48%	4,350	Durometer 86D	00000000	000000	00000000	0000000	00000000	0000000	———	0


	1/16"	-0.020" to 0.020"	White	Not Rated	3,000	Fired	Easy Machine, Ultra High Temperature	75	48%	4,350	Durometer 86D	00000000	00000	0000000	000000	00000000	000000	00000000	0000000
	1/8"	-0.035" to 0.035"	White	Not Rated	3,000	Fired	Easy Machine, Ultra High Temperature	75	48%	4,350	Durometer 86D	00000000	00000	0000000	000000	00000000	000000	00000000	000000
	3/16"	-0.040" to 0.040"	White	Not Rated	3,000	Fired	Easy Machine, Ultra High Temperature	75	48%	4,350	Durometer 86D	00000000	00000	000000	000000	00000000	000000	00000000	00000000
	1/4"	-0.050" to 0.050"	White	Not Rated	3,000	Fired	Easy Machine, Ultra High Temperature	75	48%	4,350	Durometer 86D	00000000	00000	0000000	000000	00000000	000000	00000000	00000000
	1/2"	-0.065" to 0.065"	White	Not Rated	3,000	Fired	Easy Machine, Ultra High Temperature	75	48%	4,350	Durometer 86D	00000000	000000	0000000	000000	00000000	000000	00000000	00000000