Ceramic Fasteners

• Material: Alumina Ceramic
• Type: Round Head
• Groove: Hexagon
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN, GB
• Model NO.: GT-297
• Alumina Content: 99.7% Alumina,99% Alumina, 95% Al2O3
• Head: Hex, Button Head, Pan Head
• Color: White, Cream, Yellow
• Thread: Un\Unr\Unc\Unf\Uns, Unef
• Application: High Temperature Resistant, High Wear Resistance
• Finish: Grind
• Transport Package: Plywood Case
• Specification: Rohs
• Trademark: shangtao
• Origin: Shanghai, China
• HS Code: 8547100000
• Production Capacity: 500000 PCS Per Year

Product Description

Gong tao company can customize various alumina ceramic parts such as plate, wafer, gasket, screw, disk ect.

These items have wear-resistance, shock resistance, and convenient construction ect. They are wear-resisting and ideal material for material transportation equipment in industry such as petroleum, mine, steelworks, electric plant. And they can prolong the using cycle of equipment effectively.

Gongtao company can make special various wear-resistance parts based on the requirement and drawing.

Gongtao company can make special various wear-resistance parts based on the requirement and drawing.
 

AL2O3 conent %	60	75	80	85	92	95	99	99.7
Bulk density(g/cm3)	3	3.1	3.3	3.4	3.6	3.7	3.81	3.85
Flexural Strength(MPa)	205	280	215.7	230	312	304	340	370
Coefficient of linear expansion(×10-6/°C)(25-800°C)	7.1	7.6	7.6	7.6	7.5	7.3	7.6	7.6
Thermal conductivity[w/(m.R)]	16	17	17	17	18	20	34	35
Insulated strength(KV/mm)	10	10	10	10	10	10	10	10
Bulk density resistance(Ω.cm)20°C	>1014	>1014	>1014	>1014	>1014	>1014	>1014	>1014
300°C	>1013	>1013	>1013	>1013	>1013	>1012	>1010	>1010
Long term operating temperature (°C)	1350	1000	1250	1290	1390	1480	1600	1700
Hardness	7.5	7.5	7.5	7.5	8.5	8.8	9	9
Refractoriness	1800	1700	1800	1850	1920	2000	2030	2040