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What are the influencing factors of flame cutting quality for ASTM A573 welding structural steel

What are the influencing factors of flame cutting quality for ASTM A573 welding structural steel

  • Nov 27 , 2020
The technology center has always been focusing on application research, improving market realization and scientific and technological contribution rate; taking user demand as the goal, highlighting the personalized development of products; taking the join

The technology center has always been focusing on application research, improving market realization and scientific and technological contribution rate; taking user demand as the goal, highlighting the personalized development of products; taking the joint development of industry, University and research, and technology integration as the means, improving the starting point and level of innovation, and realizing the breakthrough of core technology; taking advanced research as the guide, pursuing the leap of technological development; taking system and mechanism innovation as the driving force, Promote and realize the working concept of technological innovation.

Among stainless steels, austenitic stainless steel has the best process performance. Due to its good plasticity, ASTM A573 welding structural steel, austenitic stainless steel can be processed into various plates, tubes and other profiles, suitable for pressure processing. Martensitic stainless steel has poor process performance due to its high hardness. Stainless steel has corrosion resistance, enhanced strength, steel deformation is not easy to crack and environmental protection performance, not easy to rust, and has good ductility and toughness. Stainless steel is suitable for use in harsh environments (indoor and outdoor environments such as humidity, acid and alkali).

Steel production and rolling technology and equipment also pursue the continuity between processes, such as the continuous ASTM A573 welding structural steel process between continuous casting and rolling mills, continuous casting slabs hot transfer hot charging, increased direct rolling, and continuous cold rolling processes. The development of controlled rolling and controlled cooling technology that combines rolling and heat treatment has played a huge role in improving the properties of rolled materials.

20Mn2 steel has medium strength, and the properties of 20Mn2 steel and 20Cr steel are similar. The impact toughness and weldability of 20Mn2 steel at low temperature are better than those of 20Cr steel. The plasticity and machinability of 20Mn2 steel are high during cold deformation. The hardenability of 20Mn2 steel is higher than that of corresponding carbon steel, ASTM A573 welding structural steel. Chemical composition of 20Mn2 steel: C: 0.17-0.24, Si: 0.17-0.37, Mn: 1.40-1.80. Mechanical properties of 20Mn2 steel: tensile strength ≥ 785 MPa, yield strength ≥ 590 MPa, elongation after fracture ≥ 10%, section expansion rate ≥ 40%, impact absorbed energy ≥ 47J.

Management information and high efficiency. Because of the rapid flow of ASTM A573 welding structural steel goods, container multimodal transport and "door-to-door" transport, it is required that the port must have a modern information network, so that it can have the comprehensive capabilities of all-weather access, rapid loading and unloading, customs clearance, collection, distribution, storage and transportation

The strip steel thickness is generally below 6mm, which is convenient for crimping and processing. You should choose the ASTM A573 welding structural steel, strip steel specifications according to your own purposes. The specifications and materials used for different purposes are different, so you must confirm it before buying. It is best to ask professionals to give advice before purchasing strip steel, and purchase the specifications and types you need according to the corresponding requirements.

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