Characteristics of different cast steels

Cast steel is used for casting steel, is a kind of casting alloy, cast steel is an industrial production of parts and components, is also widely used in a way.Carbon cast steel can be classified into different categories according to the carbon content. Carbon cast steel can be classified into: C≤0.20% as low-carbon cast steel;C0.2 ~ 0.5% is 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 chemical composition.Alloy steel is divided into low alloy steel and high alloy steel according to the content of alloy elements.The following are the characteristics of casting low alloy steel, casting special steel and casting carbon steel.Precision foundry

1. Casting low alloy steel: cast steel containing manganese, chromium, copper and other alloy elements.The total amount of alloying elements is generally less than 5%, which has greater impact toughness and can obtain better mechanical properties through heat treatment.Casting low alloy steel has better performance than carbon steel, which can reduce the quality of parts and improve the service life.

2. Cast special steel: a variety of alloy cast steel refined for special needs, usually containing one or more high alloy elements to obtain certain special properties.For example, high manganese steel containing 11% ~ 14% can withstand impact wear, mostly used in mining machinery, construction machinery wear parts;All kinds of stainless steels with chromium or chrome-nickel as the main alloying element are used for parts that are corroded or work at high temperature above 650℃, such as valve body, pump, container or steam turbine shell of large capacity power station for chemical industry.

3. Cast carbon steel: cast steel with carbon as the main alloy element and a small amount of other elements.Carbon containing less than 0.2% is cast low carbon steel, carbon containing 0.2% ~ 0.5% is cast medium carbon steel, carbon containing more than 0.5% is cast high carbon steel.The strength and hardness of cast carbon steel increase with the increase of carbon content.Cast carbon steel has a higher strength, plasticity and toughness, low cost, in heavy machinery used to produce a large load of parts, such as rolling machine frame, hydraulic press base;Used in the manufacture of heavy impact bearing parts such as pillows, side frames, wheels and couplings on railway vehicles.  

The quantity that contains carbon content and alloy content are deciding the classification of cast steel and the characteristic of cast steel, the range that different cast steel USES is different also, because this is right cast steel of choose and buy is having very big help.The choose and buy person should understand characteristic carefully, reasonable choice casts steel piece.