Sintered Silicon Carbide Mechanical Seal Ring
Sintered silicon carbide mechanical seal rings — rotating and stationary rings for pumps working under high speed rotation, sand flush abrasion and corrosion.
View Product
Reaction Bonded Silicon Carbide
Reaction Bonded Sintered Silicon Carbide
Reaction bonded sintered silicon carbide (RBSiC) — an economical high density ceramic for medium acid or mild alkaline medium.
Product Overview
Reaction Bonded Sintered Silicon Carbide
Reaction bonded sintered silicon carbide is made from fine particles of silicon carbide and additive compressed into billet, at 1500 °C to 1800 °C high temperature vacuum contact with liquid silicone, free silicon filling the pores, and high density of ceramic material is obtained. It can be used in medium acid or mild alkaline medium. It can be at medium concentration of acid or used in mild alkaline medium, it is widely used in bearing and oil, chemical, automobile and ship, pump valve and other fields.
Reaction Bonded Silicon Carbide (RB SiC) is a very economical material which gives excellent wear characteristics, as well as good chemical resistance.
Key Benefits
Why This Part Lasts
- Excellent wear characteristics
- Good chemical resistance
- High density ceramic material obtained by free silicon filling the pores
- Economical compared with pressureless sintered silicon carbide
- Suitable for medium acid or mild alkaline medium
Application Scenarios
Where It Is Used
Bearing And Oil
Bearing duty and oil field service.
Chemical
Medium acid or mild alkaline medium.
Automobile And Ship
Wear and sealing parts for vehicles and marine equipment.
Pump Valve
Seal faces and wear parts in pumps and valves.
Specifications
Silicon Carbide Technical Data
| Operating Limits | Units | RBSiC |
|---|---|---|
| Volume Density | g/cm³ | 3.02-3.05 |
| Hardness | HRA | ≥90 |
| Indicated Porosity | % | <0.3 |
| Compressive Strength | Mpa | ≥2000 |
| Flexural Strength | Mpa | >350 |
| Free-Si content | % | <8-12 |
| Purity (SIC Percentage) | % | ≥90 |
| Elastic Modulus | GPa | ≥350 |
| Poisson Ratio | --- | 0.14 |
| Thermal Conductivity | w/m.k | 50-100 |
| Coefficient of Thermal expansion | 10⁶.1/°C | 4.0 |
| Maximum Service Temp Air | °C | 1000 |
Data as published for our silicon carbide grades. Confirm the working values for your medium and temperature with our team before ordering.
Gallery
Product Photos
Manufacturing and Quality Control
How This Part Is Made
Production begins with the raw materials in powder form and finishes with a sintered carbide component that achieves all OEM specifications.
1
Powder Preparation
Production begins with the raw materials in powder form, prepared on the spray granulator.
2
Forming
The prepared powder is formed into green parts on the dry press.
3
Sintering
High temperature vacuum sintering in the sintering stove.
4
Grinding And Polishing
CNC grinding and polishing bring the seal faces to final geometry.
5
Testing
Hardness testing and physical testing before the parts are released.
Related Products
Other Silicon Carbide Parts
Sintered Silicon-Nozzle
Sintered silicon carbide nozzles with high flexing strength at elevated temperatures and high thermal shock resistance — for burners, kiln furniture and drill bits.
View Product
Sintered Silicon-Wear Sleeves
Silicon carbide wear sleeves for rotating support, aligning, anti-thrust and seal of the axle of submerged electric pumps in the oil field.
View ProductFAQ
Reaction Bonded Sintered Silicon Carbide FAQ
How Is Reaction Bonded Silicon Carbide Made
It is made from fine particles of silicon carbide and additive compressed into billet, at 1500 °C to 1800 °C high temperature vacuum contact with liquid silicone, with free silicon filling the pores, so a high density ceramic material is obtained.
What Medium Can RBSiC Be Used In
It can be used in medium acid or mild alkaline medium, and at medium concentration of acid.
How Does RBSiC Compare With SSiC
RBSiC is a very economical material which gives excellent wear characteristics as well as good chemical resistance. SSiC has no free silicon, which makes it most resistant to chemically-aggressive fluids and ideal for high temperature applications.
What Is The Free Silicon Content
The free-Si content of RBSiC is <8-12%, against <0.1% for SSiC.
What Is The Maximum Service Temperature In Air
1000 °C for RBSiC, against 1600 °C for SSiC.
Get a Quote for Reaction Bonded Sintered Silicon Carbide
Send your drawing or your existing part dimensions together with the medium and the operating temperature.