Tungsten Carbide (TC) /Silicon Carbide (SIC) Parts

• Customization: Available
• Material: Tungsten Carbide
• Application: Pump Seal
• Type: Shaft Seal
• Performance: Wear
• Shape: O-Ring
• Standard: Nonstandard
• Style: Mechanical Seal
• Shape (for Gasket): Ring
• Function: Shaft Sealing
• Transport Package: Carton
• Specification: OD from 10 mm to 600 mm
• Origin: China
• HS Code: 6914900000
• Production Capacity: 1000, 000/Year

Product Description

Tungsten Carbide (TC) is one of the most versatile materials available for wear parts.It gives the following benefits:
- High hardness and mechanical strength
- Superior wear resistance
- Good corrosion resistance
- Easily withstands abrasive services
- (Good fracture toughness)

Two primary grades of tungsten carbide are available - Nickel bonded TC and Cobalt bonded TC:
- 6% Nickel bonded TC, gives enhanced corrosion resistance
- 6% Cobalt bonded TC, provides higher hardness and better abrasion resistance.

Technical data of our material is as below:

Parameter	Unit	6% Ni - TC	6% Co - TC
Density	g/cm 3	14.5 - 14.9	14.7 - 15.0
Binder		6% Nickel	6% Cobalt
Crystal Size	µ m	1.2	1.2
Hardness	Rockwell	HRA 89.5	HRA 90
Minimum Transverse Rupture Strength	MPa	1800	1800
	psi	261, 000	261, 000

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 Carbide

Different 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/cm^3	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