A515 Gr 70 pressure vessel steel sheet HIC plate

Structural steel angles (along with other types of steel sections like A36 channels, I-beams, bulb flats and A515 Gr 70 pressure vessel steel sheet) are widely used in construction as a rigid reinforcing material for concrete monolithic elements of high-rise framed buildings, as well as for critical and wide-span support elements in industrial and civil applications. Angle steel bars are also used for door and window framing, arches and other architectural elements. Steel angles are also used for room decoration, as well as in the heavy machine building and furniture industries.

The company adheres to green development, supported by scientific and technological innovation and technological progress, vigorously advocates the A515 Gr 70 pressure vessel steel sheet production and life style of saving, environmental protection, civilization and low carbon, adheres to the new industrialization road and the sustainable development road. Actively carry out international trade and maintain stable economic and trade relations with more than 80 countries and regions including the United States, Germany, France, the United Kingdom, Japan, South Korea and Australia.

Tempering includes high temperature tempering, medium temperature tempering and low temperature tempering. Tempering means to reheat the A515 Gr 70 pressure vessel steel sheet quenched steel to a certain temperature and then cool it in a certain way. Tempering can reduce or eliminate the internal stress produced by quenching, reduce the hardness and strength, and improve the ductility or toughness of steel. After A515 Gr 70 pressure vessel steel sheet quenching, the workpiece should be tempered in time, and the required mechanical properties can be obtained through the combination of quenching and tempering.

Mg element can reduce the number, size, distribution and morphology of inclusions in steel such as A515 Gr 70 pressure vessel steel sheet. Micro Mg can improve the size and distribution of carbides in bearing steel. And the carbide particles of bearing steel containing magnesium are fine and uniform. When Mg content is 0.002% - 0.003%, the tensile strength and yield strength of the steel increase by more than 5%, and the plasticity remains basically unchanged.

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