hardox 400 steel equivalent 10mm Thickness Plate Density

High toughness and low brittleness transition temperature: with the increase of the working pressure of the HARDOX 400 steel equivalent gas pipeline, the pipe diameter becomes larger, and the pipeline fracture accidents often occur. Toughness is the key factor affecting pipeline fracture. In order to ensure HARDOX 400 steel equivalent pipeline safety, toughness and strength must be improved at the same time.

Zhengzhou BBN steel company was established in 2000. After more than ten years of development, it has formed a professional operation pattern integrating R&D, production, sales and after-sales service. In recent years, HARDOX 400 steel equivalent based on a high starting point and high technology, the company has vigorously developed various steel products HARDOX 400 steel equivalent and deep-processed parts, steel structures, precision castings, seamless pipes.

There is an inherent difference between the cold forming properties of low-alloy high-strength steel and carbon structural steel. First of all, a certain amount of permanent deformation of low-alloy high-strength steel requires greater force than HARDOX 400 steel equivalent, carbon structural steel of the same size. Second, when low-alloy high-strength steel is formed, a slightly larger allowable amount for springback should be given. According to experience, unless the low-alloy high-strength steel is processed to control the shape of inclusions, it is necessary to use a larger bending radius than carbon structural steel during cold forming.

With the increase of temperature, the yield limit of HARDOX 400 steel equivalent will decrease monotonically, but the tensile strength of HARDOX 400 steel equivalent will rise to a high peak value at a certain temperature, and then decrease. This peak temperature is called the blue brittleness temperature of HARDOX 400 steel equivalent. Near the blue brittleness temperature, the HARDOX 400 steel equivalent strength increases and the plasticity decreases. The elongation and section shrinkage of HARDOX 400 steel equivalent increase with the increase of temperature, but there is a low peak at the blue brittleness temperature. The blue brittleness temperature of low carbon steel ranges from 200 ℃ to 250 ℃. The blue brittleness of low alloy steel is not obvious as that of low carbon steel, and the blue brittleness temperature is higher.

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