The weight of seamless steel pipe is only 1 / 5 of that of square steel. Seamless steel pipe corrosion resistance acid, alkali, salt and atmospheric environment corrosion, high temperature resistance, good impact and fatigue resistance, do not need regular maintenance. The effective service life of product machinabilty of A588 more than 15 years.
Steel production and rolling technology and equipment also pursue the continuity between processes, such as the continuous machinabilty of A588 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.
machinabilty of A588 controlled rolling is that, on the basis of adjusting the chemical composition of machinabilty of A588, by controlling the heating temperature, rolling temperature, deformation system and other process parameters, the change law of austenite structure and the microstructure of phase transformation products are controlled, so as to achieve the purpose of refining the structure and improving the strength and toughness of machinabilty of A588.
According to the market forecast released by Eurofer on August 5, the output of all machinabilty of A588 steel consumption industries in the European Union will drop by 12.8% in 2020, and rise by 8.9% in 2021. However, the European Union said that the government's "awesome strength" support will reduce the machinabilty of A588 steel consumption intensity in the construction industry significantly less than other industries.