Ordinary carbon steel

 Ordinary carbon steel

     Ordinary carbon steel is the abbreviation of ordinary carbon structural steel. The carbon content is less than 0.38%, and less than 0.25% is the most commonly used. Belonging to low-carbon steel, each metal grade indicates the lowest yield point of the steel when the thickness is less than 16mm. Compared with high-quality carbon steel, the restrictions on carbon content, performance range and content of phosphorus, sulfur and other residual elements are wider. my country and some countries divide ordinary carbon steel into three categories according to the guarantee conditions of delivery: Class A steel (Class A steel), which only guarantees mechanical properties and does not guarantee chemical composition, Class B steel (Class B steel), Only the chemical composition is guaranteed, but the mechanical properties are not guaranteed; special steel (C-type steel) not only guarantees the chemical composition, but also guarantees the mechanical properties. Special steels are often used in the manufacture of more important structural parts.

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Introduction to 20 # carbon steel plate

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Introduction to 20 # carbon steel plate       20 # belongs to superior carbon steel, which complies with GB/T711 standard. 20% of 20 # steel refers to carbon content, which is 0.2%, belonging to low carbon steel. Steel can be divided into low carbon steel, medium carbon steel and high carbon steel. Mild steel - carbon content is generally less than 0.25%; Medium carbon steel - carbon content is generally between 0.25 and 0.60%; High carbon steel - carbon content is generally greater than 0.60%. 　　Domestic and international correspondence of 20 # steel plate: refer to the corresponding steel grade: China's GB/JB standard steel grade is 20, China's Taiwan CNS standard steel grade S20C, Germany's DIN standard material number 1.0402, Germany's DIN standard steel grade CK22/C22. British BS standard steel grade IC22, French AFNOR standard steel grade CC20, French NF standard steel grade C22, Italian UNI standard steel grade C20/C21, Belgian NBN standard steel grade C25-1, Swe...
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