标签：Q345B - 英国华人论坛

Level of Q345B steel tube Q345A, is do not impact; Grade Q345B, impact is 20 degrees at room temperature; Grade Q345C, impact is 0 degrees; Q345D grade, is 20 degrees - impact; Q345E level, it is - hit 40 degrees. In the impact of different...英国华人论坛

Q is representative of the material yield, 345 refers to the material yield value, minimum to achieve 345 mpa. Q345A, Q345B, Q345C Q345D, Q345E carbon steel pipe. And this is the distinction between grade, represents the main impact of tempe...英国华人论坛