Silicon Carbide Tube - High Strength Solutions for Extreme Conditions
Silicon Carbide (SiC) stands out in the advanced industrial material world as an icon of resilience and efficiency, thanks to its remarkable combination of silicon and carbon which offers exceptional thermal, mechanical, and chemical properties.
Chemical resistance makes these components ideal for protecting equipment against acids, bases and oxidizers while their exceptional wear resistance extends equipment longevity.
High Temperature Resistance
SiC tubes are an integral part of industrial equipment that must withstand extreme temperatures and harsh environments, including furnace components, metal smelting furnaces, semiconductor manufacturing facilities, oil refineries, aerospace engineering applications where longevity plays an essential part. Their superior thermal stability, hardness and chemical inertness makes them suitable for applications including furnace components, metal smelting furnaces, metal refining facilities and space exploration - where durability plays a significant role.
SSiC tubes are produced through reaction sintering technology and can be formed into custom shapes and sizes to meet specific application needs. Their density remains even at high temperatures, while being gas-impermeable allows them to be used in vacuum conditions. Furthermore, SA SiC has proven resilient under Loss of Coolant Accident (LOCA) conditions, demonstrating superior resistance against degradation.
SiC is widely recognized for its superior corrosion resistance, making it suitable for use in all forms of acid and alkali mixtures - such as sulfuric, hydrochloric, sodium hydroxide, and mixed acid acids - making it suitable for heat exchanger plates used in industrial processes, enabling safe separation of corrosive media.
High Strength
Silicon carbide is far more durable than many ceramics and metals. It can withstand extreme temperatures without degrading, and is chemically inert - meaning it can safely handle corrosive substances. Silicon carbide has many applications within metallurgy, power industry and coal chemical production - while mechanical seals made from it may withstand abrasion, high temperatures and chemical attacks as well.
Reaction sintering produces dense, strong ceramic pieces from silicon and carbon powder using reaction sintering technology. This process allows for the customization of shapes and dimensions specific to individual applications - for instance Hexoloy a-SiC thermocouple protection tubes can be tailored specifically to each nuclear energy system's parameters by this means.
These monolithic tubes can withstand thermal cycling, as well as resilience during Loss of Coolant Accident (LOCA) testing. Furthermore, they remain intact even in cases of radioactive contamination, making this an invaluable feature - particularly important in cases such as LOCA where maintaining intact cladding prevents radioactive material leaking into the environment.
Excellent Corrosion Resistance
Silicon carbide is widely known for its extreme resistance to wear, corrosion and chemical inertness - qualities which enable it to handle extreme environments safely while withstanding high temperatures and harsh chemicals such as those encountered during metal smelting, oil refining and aerospace engineering applications. Ceramic tubes made of sintered silicon carbide (SSiC) are therefore often the go-to choice in these industries.
Hexoloy SE sintered silicon carbide tubes are widely utilized in shell and tube heat exchangers used in fine and specialty chemical processing, providing virtually universal corrosion resistance with excellent mechanical strength. Furthermore, their superior toughness, thermal conductivity, hardness and thermal expansion characteristics make SSiC ceramic tubes an attractive option when dealing with extreme temperatures and harsh environments such as high-temperature applications or abrasive environments.
RBSC composites are dense materials produced through infiltration of compacted mixtures of SiC powder and carbon with molten silicon, typically from pyrolyzed organic resins. Free carbon is added from these sources, although their environmental unfriendliness and presence of residual silicon present some limitations for their use as an abrasive. It has been demonstrated, however, that inhaling fine particulate slag generated from these abrasives can result in nodular fibrosing alveolitis similar to what was observed with crocidolite asbestos exposure.
Long Life
Silicon carbide tubes provide an exceptionally durable solution in any number of settings. Their superior thermal stability enables them to work well even under conditions that would rapidly degrade other materials, while their mechanical strength allows them to withstand significant amounts of force without degrading over time. Their chemical inertness also makes them an excellent option for handling potentially corrosive substances.
Kerui produces silicon carbide tubes using different manufacturing processes, including reaction bonding and sintering. Our selection of sintered and reaction-bonded types aims to meet different customer requirements; both boast high mechanical strength with moderate oxidation resistance.
Silicon carbide is an integral part of furnaces and refractory linings, and its corrosion-resistant and wear-resistant properties make it a top choice. Applications for silicon carbide include support tubes, thermocouple protection tube components, burner nozzles and more. Due to their light weight characteristics, silicon carbide tubes also make an excellent addition for oil drilling operations, where their use can help increase performance while decreasing costs.