Custom 95%/99% Alumina Ceramic Screws Al2O3 Ceramic Bolts

• Application: Refractory
• Purity: 95%
• Type: Ceramic Parts
• Color: White;Cream-Yellow
• Size: M8*110 (Thread Length)
• Application Domain: Lab, Molten Industry, Ect
• Property: High Temperature Resistance, Corrosion Resistant
• Max Temperature: 1800c
• Material: Alumina Ceramic
• Transport Package: Plywood Case
• Specification: customization
• Trademark: shangtao
• Origin: Shanghai, China
• Production Capacity: 50000 PCS/Year

Product Description

Ceramic Property Table
Performance		Unit	75 Porcelain	90 Porcelain	95 Porcelain	99 Porcelain	99.7 Porcelain	Zirconia	High-Frequency Porcelain
Bulk Density			>3.2	>3.4	>3.6	3.7	3.7	6	≥2.6
Bending Strength		N/m2*103	1.96	2.25	2.24	>2.24	>2.27	11	1.37
Linear Expansion Coefficient	20-800ºC	x10-6ºC	-	6.3-7.3	6.5-8	6.5-8	6.5-8	9.5	≤8
Dielectric Constant	1MHz		≤9	8.5-9.5	9-10	9-10.5	9-10.5	-	≤7.5
	10GHz		-	-	9-10	9-10.5	-	-	-
Dielectric Loss	1MHz	x10-6	≤10	≤8	≤4	≤2.5	≤1.5	-	≤8
	10GHz	x10-6	-	-	≤10	≤6	-	-	-
Specific Volume Resistance	100ºC	Ω·Cm	>1012	>1012	>1013	>1013	>1014	>1014	>1012
Breakdown Strength		KV/mm	20	15	15	15	-	-	20
Thermal Conductivity	20ºC	W/m·k	-	16.8	25.2	25.2	29.2	3	2.9

 

Al2O3 Purity(%)	95	99.7
Bulk Density	3.6 g/cm3	3.9 g/cm3
Bending Strength	364	450
Expansion	7.6	8.0
Thermal Conductivity	20	35
Dielectric strength	11	12
Max working temperature	1500	1800
Water absorption	<0.2	<0.1

High purity, we have 95% Al2O3 screw with density 3.6g/cm3 and 99.7% Al2O3 screw with density 3.9g/cm3
Tight tolerance, all the screw can be machined to tight tolerance +/-0.02mm at most, surface roughness can reach to Ra0.2um at most.
Inspection: each single screw will be checked before shipping.

We mainly produce alumina ceramics, zirconia ceramics, cordierite ceramics and other ceramics.
(if  you dont know much about the characteristics of material you can contact me.)