This is a pressure vessel steel plate grade under the American Society of Mechanical Engineers (ASME) standard.
Current execution standard: SA-516/SA-516M
SA516GR70 steel plate is equivalent to A516GR70 under the American Society for Materials Science (ASMS) standard, P355GH under the EN standard, and Q345R under the Chinese GB standard.
Material Properties: Carbon structural steel
Typical Applications: Boilers and pressure vessels, chemical and nuclear industries