What are the common types of cast steel
Classification according to chemical composition: can be divided into carbon steel, medium and low alloy steel, and high alloy steel;
1. Carbon steel: that is, iron-carbon alloy, which also contains a certain amount of manganese and silicon. When the manganese content is less than one percent, the content of harmful elements such as sulfur and phosphorus needs to be contained less, and other elements need to be used as some residual elements, but they should still be contained less.
2. Low and medium alloy steel: This is the required performance that can be obtained in addition to carbon elements, and a certain amount of alloying elements can be added, but the content generally does not exceed 8%. The carbon content of steel is about 0.3% or less; high-alloy steel: it contains very high alloying elements, for example, the Cr in stainless steel is more than 12%, and some stainless steels Will be more than 50%, often stainless steel or heat-resistant steel and wear-resistant steel;
Classification according to purpose: it can be divided into steel used in general engineering machinery, the steel used in construction, the steel used in pressure vessels, the steel used in high temperature and low temperature, stainless steel, etc.;
1. Steel for general engineering machinery: its own characteristics are relatively good comprehensive mechanical properties and process properties;
2. The steel used in construction: its unique advantage is good plasticity and welding function;
3. Steel for pressure vessels: For example, valves, pumps, and various pipe fittings used; these characteristics are good plastic toughness and certain mechanical properties, good process performance, and high weldability. High temperature and low-temperature applications; stainless steel: these can be used in corrosive conditions;
Classification of grades used for steel castings:
1. There are many grades used in steel castings;
2. There are many ways to express the grades of steel castings. They are often expressed by chemical elements, as well as mechanical properties of letters, numbers, chemical numbers, alphanumerics, etc. The representation method;
3. For each type of cast steel grade, it is necessary to find out which country's standard and what kind of steel it belongs to because the symbols and measurement standards represented by different countries are different;
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