95% Alumina Ceramic Screws and Screw Nuts

• Model NO.: screw
• HS Code: 6909190000
• Production Capacity: 500000PCS/Month

Product Description

Alumina ceramic screws
Technical ceramic
Fine ceramic
Material: Alumina

Function:
High tolerance
High strength
Can endure high temperature
Corrosion resistant


1. Material: 95% alumina ceramic

Performance For Alumina Ceramic
Item		Unit	96 Al2O3	99 Al2O3
Physical Characteristics	Bulk density	g/cm3	3.6	3.8
	Water absorption	%	0	0
Mechanical Characteristics	Flexural strength	Mpa	340	400
	Hardness Vickers	Gpa	13.5	15.6
	Elastic modulus	Gpa	320	370
	Poisson's ratio	-	0.23	0.23
Thermal Characteristics	Linear expansion coefficient	(200C-5000C) 10-6/0C	6.2-8.5	6.8-8
	Thermal conductivity	w/(m.k)	24	32
	Specific Heat	*10-3J/(kg*K)	0.78	0.9
Electrical Characteristics	Dielectric constant (1MHZ)	-	9.4	9.9
	Dielectric loss angle	*10-4	5	1
	Dielectric strength	*106V/m	15	15

 
 
2. Feature:
 1). High hardness  and High density
 2). Low thermal conductivity 
 3). Chemical inertness
 4). Good Wear resistance
 5). High fracture toughness
 6). Good insulation performance
 7).high temperature resistance
 
 
3. Application:
1). Shaft, Plunger
2). High-pressure cleaning machines
3). Sealing structure
4). Auto mobile industry
5). Oil drilling equipment
6). Insulation parts in electrical equipment
7). Ceramic knife
8). Ceramic hair clipper spare parts