Cast steel is a type of steel used for casting, which is a type of casting alloy. Cast steel is a method of industrial production of components and is also widely used. Cast steel can be classified into different categories based on its carbon content. Carbon cast steel is classified according to its carbon content, with C ≤ 0.20% being low-carbon cast steel; C0.2~0.5% are medium carbon steel; C ≥ 0.5% is high carbon steel. Cast steel can be divided into carbon cast steel and alloy cast steel according to their chemical composition. Alloy steel is divided into low alloy steel and high alloy steel according to the content of alloying elements. The following is an analysis of the characteristics of three different types of cast steels: low alloy steel, special steel, and carbon steel.
Casting low alloy steel:
The low alloy steel casting includes manganese, chromium, copper, and other alloying elements. Usually, the alloying elements are generally less than 5% of the total amount. The low alloy steel castings have significant toughness and obtain better mechanical properties after proper heat treatment. The low alloy steel castings show better performance in practical application and can increase the service life. Low alloy steel castings have a wide range of applications in various industries such as Automotive industry, Aerospace industry, Oil and gas industry, Construction machinery, etc..
Casting special steel:
Alloy cast steel that is refined to meet special needs, with a wide variety of varieties, usually containing one or more high alloying elements, in order to obtain a certain special performance. For example, high manganese steel containing 11% to 14% manganese can withstand impact wear and is often used as wear-resistant parts in mining machinery and engineering machinery; Various stainless steels with chromium or chromium nickel as the main alloying element, used for parts that work under corrosive or high-temperature conditions above 650 ℃, such as chemical valve bodies, pumps, containers, or large capacity power plant turbine casings.
Cast carbon steel：
Cast steel with carbon as the main alloying element and containing a small amount of other elements. Low carbon steel with carbon content less than 0.2% is cast, medium carbon steel with carbon content ranging from 0.2% to 0.5% is cast, and high carbon steel with carbon content greater than 0.5% is cast. As the carbon content increases, the strength and hardness of cast carbon steel increase. Cast carbon steel has high strength, plasticity, and toughness, and low cost. It is used in heavy-duty machinery to manufacture parts that can withstand heavy loads, such as steel rolling mill frames, water pressure machine bases, etc; Used in railway vehicles to manufacture components that withstand high forces and impacts, such as bolsters, side frames, wheels, and couplers.
The amount of carbon and alloy content determines the classification and characteristics of cast steel, and the scope of use of different cast steel is also different. Therefore, it is very helpful for the correct selection of cast steel parts. Buyers should carefully understand the characteristics and choose steel castings reasonably.
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