High Precision Tungsten Silicon Carbide Seal Ring as Water Pump Shaft Seals

Basic Info

Thickness	Standard
Density	Standard
Size	as The Client`S Require
Origional	China
Temperature	High Temperature
Corrosion	Prefect
Compressive Strength	Standard
Transport Package	Standard or as The Client`S Require
Specification	SSiC SiC
Trademark	Junty Or as the clients require
Origin	China
HS Code	6914900000
Production Capacity	50, 000/Year

Product Description

Silicon Carbide (SiC) is one of the most popular high performance tribo-materials, which has been commercially available for more than twenty-five years. Its features include:· Excellent abrasion and wear resistance· Excellent corrosion resistance· Low coefficient of friction· Low coefficient of thermal expansion· High thermal conductivity· Hardness greater than Tungsten CarbideDifferent grades of Silicon Carbide are available as following:· Reaction Bonded Silicon Carbide (RB SiC) - a very economical material which gives excellent wear characteristics, as well as good chemical resistance.· Sintered Silicon Carbide (SSiC) - the absence of free silicon makes it most resistant to chemically-aggressive fluids, and ideal for high temperature applications.· Graphite-Loaded Silicon Carbide - this is a composite of silicon carbide and free graphite. Graphite is added to RB SiC (RB SiC + C) or SSiC (SSiC + C), to improve tribological behavior by enhanced lubricity.

Parameter	Unit	RB SiC	SSiC
Density	g/cm3	3.0 - 3.05	3.1
Free Silicon Content	-	12%	-
Crystal Size	μm	8 - 20	5 - 7
Hardness	Rockwell	HRA 90	HRA 93
Compressive Strength	MPa	2700	3000
Flexural Strength	MPa	400	400
Fracture Toughness	MPa	4.3	4.5
Elastic Modulus	GPa	390	410
Poisson's Ratio	-	0.15	0.15
Coefficient of Thermal Expansion	1 x 10-6 / K	4.3	4.3