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Cause analysis of red oxide iron on sa573gr.65 hot rolled structural steel strip surface

Cause analysis of red oxide iron on sa573gr.65 hot rolled structural steel strip surface

  • Jan 21 , 2021
Just as sa573gr.65 hot rolled structural steel strip, the boiler steel plate also has strict control of chemical composition for the material, especially harmful elements such as phosphorus and sulfur, and residual elements such as chromium, nickel, and c

Just as sa573gr.65 hot rolled structural steel strip, the boiler steel plate also has strict control of chemical composition for the material, especially harmful elements such as phosphorus and sulfur, and residual elements such as chromium, nickel, and copper; during smelting, good deoxidation and removal of non-metallic inclusions should be carried out to ensure good quality, plasticity and toughness. The organizational structure requires uniformity, and the grain size is controlled within a certain range; there are also strict requirements for surface quality and internal defects. In addition, the boiler steel plate mechanical properties at room temperature and high temperature must be guaranteed.

As the thickness and hardness of sa573gr.65 hot rolled structural steel strip increase, the tendency to crack at the cutting edge increases. In order to prevent the sa573gr.65 hot rolled structural steel strip from cutting cracks, preheating should be carried out before sa573gr.65 hot rolled structural steel strip cutting. Special attention should be paid to preheating to make the entire sa573gr.65 hot rolled structural steel strip interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole sa573gr.65 hot rolled structural steel strip cannot be preheated, the partial preheating method can be used instead.

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We are experienced shipbuilding and marine grade steel materials supplier and exporter with more than 20 years experience. For any question about the sa573gr.65 hot rolled structural steel strip shipbuilding steel materials, such as shipbuilding steel price, ABS EH36 steel specification, Lloyds grade A steel properties, AH36 steel mechanical properties, AH32 steel price, DH32 steel dimensions, difference between EH36 and DH 36 etc., please feel free to consult us.

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