Precautions for procurement of A573 Gr 70 plate, corrosion resistant steel. First, thickness. According to the thickness, corrosion-resistant steel can be divided into thin plate, medium plate, thick plate and extra thick plate, and each thickness has different application fields. Second, the choice of length and width, which can be cut to required size. Third, standards, each country has its own standards, so when purchasing corrosion resistant steel, it depends on which country it is used. Fourth, it is better to let professionals to purchase A573 Gr 70 plate or corrosion resistant steel.
What is the difference between Q345B steel and Q345A steel? A573 Gr 70 plate, Q345B steel and Q345A steel have slight difference in chemical composition: Q345A steel: C ≤ 0.20, Mn ≤ 1.7, Si ≤ 0.55, P ≤ 0.045, S ≤ 0.045, V 0.02 ~ 0.15; Q345B steel: C ≤ 0.20, Mn ≤ 1.7, Si ≤ 0.55, P ≤ 0.040, S ≤ 0.040, V 0.02 ~ 0.15. The difference between Q345B steel and Q345A steel is mainly in A and B behind the steel grade, Q345A steel grade is not subject to impact; Q345B steel grade needs 20 ℃ room temperature impact test.
The company has passed the ISO9001: 2008 quality system certification, strictly implemented the ISO9001 quality management system. Besides, we have continuously improved the after-sales service network to make every effort to provide more convenient, accurate and faster services for all customers. We will supervise the production, control the quality in the factory, Inspect the cargo before shipment, Issue the test report to sales department. From the steel prodcution to steel delivery, we always focus the whole process.
