Gansu Gansu Q345B Q345B seamless steel pipe seamless steel pipe standard specifications at the plate inside, Q345B seamless steel is a low alloy series. In low-alloy material where such material is the most common. Q345B seamless steel pipe for a name for the past: 16Mn seamless steel tubes. Q345B seamless steel is a steel material can be divided by grade Q345A, Q345B, Q345C, Q345D, Q345E. They represent mainly the impact of temperature is different. Q345A level, is not to shock; Q345B grade is 20 degrees room temperature impact; Q345C level, is 0 degree impact; Q345D level is -20 degrees impact; Q345E level is -40 degrees shock. Q345B seamless steel pipe is one of the great families of tons of seamless steel agreement, with long-term production of seamless steel pipe plant in Liaocheng diameter seamless steel pipe, seamless pipe purchase large, you can prioritize Liaocheng Xin Hong Shun steel company, and the company's major steel mills run pipe, galvanized steel pipe, spiral steel pipe, square and rectangular steel pipe, standing resource material for the: 20 #, 45 #, 16Mn, Q195, Q235B and so on.