Custom sized high temperature resistant silicon carbide beams

Overview of the silicon carbide beam

Silicon carbide beam is a high-performance structural component with silicon carbide as its main component. It is characterized by high strength and high hardness, and can withstand large loads. At the same time, it has good resistance to high temperature, oxidation and corrosion, and can maintain stable performance under the harsh environment of high temperature. In addition, silicon carbide beams are widely used in metallurgy, chemical industry, electronics and other fields, which is a material product with important industrial value.

Features of the silicon carbide beam

High mechanical strength: The stable crystal structure of silicon carbide beams gives them high strength and hardness, and they can withstand large external forces and loads without easy deformation or fracture, and can be used in occasions where they are required to support heavy loads or bear large stresses.

Good high-temperature resistance: Silicon carbide beams have excellent high-temperature resistance, can maintain good mechanical properties and chemical stability in high-temperature environments, can withstand high temperatures of 1600 ℃ or even higher, and are not easy to soften and melt at high temperatures, suitable for high-temperature industrial furnaces, glass kilns and other high-temperature equipment.

Strong oxidation and corrosion resistance: the surface of the silicon carbide beam can form a dense oxide film, preventing further oxidation, in the atmospheric environment, and many corrosive media have good oxidation and corrosion resistance, can resist acid, alkali and other chemical substances, to extend the service life.

Low coefficient of thermal expansion: Silicon carbide beams have a low coefficient of thermal expansion, good dimensional stability in the case of rapid changes in temperature, not easy to crack, this characteristic makes it stable performance in the process of frequent warming and cooling thermal cycle, can be used for high-temperature equipment components with high precision requirements.

Good thermal conductivity: Silicon carbide beams have good thermal conductivity, can quickly and effectively transfer heat, help to improve the thermal efficiency of the equipment, so that the temperature distribution is more uniform, in some need for rapid heat transfer and temperature control occasions have obvious advantages.

Specifications table of silicon carbide beam

Parameter	Typical Value
Material	Silicon carbide (content ≥88%)2
Max. Working Temperature	1300 – 1900 ºC24
Density	2.7 – 3.2 g/cm³124
Apparent Porosity	≤17%126
Hardness at 20 ºC	1800 – 2000 kg/mm²2
Compressive Strength	≥1300 Mpa2
Flexural Strength	250 – 400 Mpa (room temperature); 100 – 300 Mpa (high temperature)24
Thermal Expansion Coefficient	(20 – 1000 ºC) 4.0 – 4.8×10⁻⁶/K6
Thermal Conductivity	13.5 – 70 W/mK246
Size	Cross – sectional dimensions and lengths can be customized according to requirements, with lengths generally up to 4000 mm
Compressive Strength	≥1300 Mpa2

Play

Applications of the silicon carbide beam

Metallurgical industry: In the ironmaking blast furnace, silicon carbide beam can be used as the supporting structural parts, because of its high strength and high temperature resistance, it can withstand the heavy pressure of high temperature charge, and at the same time, resist the high temperature erosion inside the furnace, to ensure the stability of the structure of the blast furnace. In the lining of a steel converter, silicon carbide beams can be used to strengthen the structure, improve the thermal shock resistance and erosion resistance of the converter, and extend the service life of the converter.

Chemical industry: It is used to manufacture the supporting parts of various chemical reactors, which can withstand high temperature, high pressure, and the corrosion of chemical media in the reaction process. In the oil cracking furnace, silicon carbide beams can be used as the support and fixing device of the furnace tube.

Electronic industry: In the high-temperature diffusion furnace for semiconductor manufacturing, silicon carbide beams are used to support silicon wafers or other semiconductor materials, and their high-temperature stability and low impurity content can avoid contamination of semiconductor materials and ensure product quality. In the sintering process of electronic ceramics, silicon carbide beams are used as load-bearing brackets to provide stable support for ceramic products and ensure the smooth progress of the sintering process.

Glass industry: In glass melting furnaces, silicon carbide beams can be used to support and fix the heating elements. In glass annealing furnaces, silicon carbide beams can be used as the support structure of the conveying roller conveyor to ensure the smooth transmission of glass during the annealing process and improve the quality of glass products.

Company Profile

RBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. The company exports to many countries, such as the USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Azerbaijan, Belgium, Cyprus, Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are interested, please send an email to sales1@rboschco.com

Payment Term

T/T, Western Union, Paypal, Credit Card etc.

Shipment Term

By air, by sea, by express, as customers request.

5 FAQs of silicon carbide beam

Q1: What are the advantages of silicon carbide beams over alumina ceramics?

Silicon carbide beams are significantly superior to alumina ceramics in the following aspects:

High-temperature resistance: The long-term use temperature of alumina ceramics generally does not exceed 1200 ℃, while silicon carbide beams can reach more than 1600 ℃. Lifespan: The lifespan of silicon carbide rollers is more than 10 times that of alumina, and the price is only 20-25% of that of recrystallized silicon carbide.

Q2: How can silicon carbide beams avoid contamination in semiconductor manufacturing?

The semiconductor industry requires a high degree of purity. Silicon carbide beams need to be made from low-impurity raw materials (e.g., high-purity silicon carbide powder) and precision machined (e.g., CNC milling) to ensure that there is no metal residue on the surface. In addition, the use of molds containing iron, aluminum and other impurities should be avoided during the production process to prevent the diffusion of impurities at high temperatures to contaminate the silicon wafers.

Q3: What do I need to pay attention to when installing silicon carbide beams?

Mechanical stress: avoid violent impact or uneven load to prevent brittle fracture. Thermal expansion: Reserve 0.5‰-0.7‰ expansion gap to prevent structural deformation due to thermal expansion and contraction at high temperatures. Dimensional accuracy: Check the beam size before installation to ensure that it matches the interface with the equipment to avoid localized stress concentration due to tolerance. Environmental cleanliness: The installation area should be kept dry to avoid the accumulation of dust or corrosive gases.

Q4: How to maintain Silicon Carbide beams to prolong service life?

Regular inspection: Check the surface of the beam monthly for cracks, abrasion, or deposits, and clean up any attached slag or chemicals in a timely manner. Avoid rapid cooling and heating: During the process of starting and stopping the kiln, the temperature should be raised and lowered slowly to prevent thermal shock damage. Load control: Use in strict accordance with the rated load capacity, avoid overloading, resulting in permanent deformation. Chemical protection: After contact with corrosive media.

Q5: What are the production processes of silicon carbide beams?

The main processes include:

Reaction sintering: Silicon carbide powder is mixed with carbon powder and molded, and a dense structure is generated by high-temperature silicon infiltration reaction, which is lower in cost but limited in the maximum use temperature (about 1380°C). Pressureless sintering: Densification at high temperature by adding sintering additives (e.g., B, C), excellent performance, but high cost. Recrystallization: recrystallization of silicon carbide particles at high temperatures (>2000°C), suitable for high purity and high temperature resistance requirements.