Direct sale A709 Gr 50W carbon steel plate sheet 2000tons in Myanmar

Q345 is a steel material. It is a low alloy steel, with good comprehensive properties, low temperature properties, cold stamping properties, A709 Gr 50W carbon steel plate sheet welding properties and machinability. Q345 steel is subdivided into Q345A, Q345B, Q345C, Q345D and Q345E. This is the grade distinction, which represents that the impact temperature is different! Q345A, no impact; Q345B, impact at 20 degrees normal temperature; Q345C, impact at 0 degrees; Q345D, impact at - 20 degrees; Q345E, impact at - 40 degrees. At different impact temperature, the impact value is different.

Sulfur is a very harmful element in A709 Gr 50W carbon steel plate sheet steel. The presence of sulfur will increase the hot brittleness of steel, reduce the various mechanical properties of A709 Gr 50W carbon steel plate sheet steel, and reduce the weldability, impact toughness, fatigue resistance and corrosion resistance of steel.

On November 1st, our company organized some of company staff to visit Zhengzhou Children Welfare Institute, and gave children cookies and toys, as well as concerns to the Children. With the development of the society, disabled children gets increasing concerns and help from all walks of life. Fortunately, Chinese Government gives high concern to the handicapped children and has built Children Welfare Institutes all over the country to guarantee their lives.

Tempering the important A709 Gr 50W carbon steel plate sheet welding structure often use high temperature tempering to remove residual weld stress. Classification: high temperature tempering above 400 ℃, medium temperature tempering 250 ~ 400 ℃, low temperature tempering 150 ~ 250 ℃, Quenching +Tempering is improve A709 Gr 50W carbon steel plate sheet strength, plasticity and toughness.