Silicon Carbon Alloy

Silicon carbon alloy (Si-C Alloy) is a new type of alloy used in converters. It can also be called high-carbon silicon or high carbon ferrosilicon, which is ferrosilicon with a large carbon content. It can replace ferrosilicon, silicon carbide and carburizer, reduce the amount of deoxidizer, and be used in the deoxidation and alloying process of converter smelting. The effect is stable, and the chemical composition, mechanical properties and internal control quality of the steel are superior to traditional processes.
The characteristics of SIC: improve the quality of molten steel, improve product quality, improve product new capabilities, reduce the amount of alloy added, reduce steelmaking costs, and increase economic benefits.

High carbon silicon Lump

High carbon silicon granules

In silicon carbon alloys, the silicon content is generally 50%-70%, and the carbon content is generally 10% -30%. In addition, silicon carbon alloys also contain small amounts of aluminum, calcium, ferro and other elements, as well as trace impurities such as manganese, phosphorus, sulfur, etc. The content of these elements has a certain impact on the quality and performance of silicon carbon alloys.

High quality silicon carbon alloy is mainly used for diffusion deoxidation when smelting ordinary carbon steel. Firstly, the silicon element in silicon carbon alloy is highly active and easily reacts with oxygen, raising the furnace temperature, deoxidizing the slag, reducing deoxidation time, avoiding power waste, and improving deoxidation efficiency. Secondly, silicon carbon alloy contains a relatively high amount of carbon element. While deoxidizing, it can also increase carbon content. For some plain carbon steel varieties, using silicon carbon alloy as a carbon increaser is also a good choice.

Steel Industry

Silicon carbon alloys are produced using the electric furnace method or metallurgical method. The electric furnace method uses silica and coke as the main raw materials, mix them in a certain proportion and put them into a high-temperature electric furnace for reaction. First, silica and coke are mixed in a certain proportion and put into an electric furnace, where they react at high temperature to form a silicon-carbon alloy. The metallurgical method is to use ferrosilicon and silicon carbide as the main raw materials and smelt them in a high-temperature smelting furnace.
Since silicon carbon alloy is a new type of alloy, there are not many manufacturers producing silicon-carbon alloy, mainly in Anyang, Henan.

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