Steel S255
C375 steel
C590K steel
C590 steel
C440D steel
C440 steel
C390K steel
C390D steel
C390 steel
C375D steel
C345K steel
C345D steel
C345 steel
C285 steel
C275 steel
C255 steel
C245 steel
C235 steel
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Designation
Description
Steel S255 used: for the manufacture of hot-rolled structural shapes (angles, I-beams, channels), sheet, universal broadband rental and roll-formed profiles designed for construction of steel structures with welded and other connections.
Standards
Chemical composition
Fe is the basis.
According to GOST 27772-88 for steel smelted in electric furnaces, the content of N ≤ 0.012% is allowed. In steel, an increase in the mass fraction of manganese to 0.085% is permissible. It is allowed to change the chemical composition at the manufacturer's choice: the Mn content is 0.80-1.10%, while the Si content is 0.05-0.15%; the C content ≤ 0.20% and Mn = 0.80-1.10, with a Si content of 0.15-0.30%. The mass fraction of residual (acid-soluble) aluminum in C255 steel with a manganese content of up to 0.85% and silicon of 0.15-0.30%, intended for sheet and broadband universal rolled products, should be at least 0.020%.
According to GOST 27772-88 for steel smelted in electric furnaces, the content of N ≤ 0.012% is allowed. In steel, an increase in the mass fraction of manganese to 0.085% is permissible. It is allowed to change the chemical composition at the manufacturer's choice: the Mn content is 0.80-1.10%, while the Si content is 0.05-0.15%; the C content ≤ 0.20% and Mn = 0.80-1.10, with a Si content of 0.15-0.30%. The mass fraction of residual (acid-soluble) aluminum in C255 steel with a manganese content of up to 0.85% and silicon of 0.15-0.30%, intended for sheet and broadband universal rolled products, should be at least 0.020%.
