◆ Standards

S355 carbon steel is a European standard structural steel, according to EN 10025-2, material S355 is mainly divided into 4 quality grades:

• S355JR (1.0045)→Q345B

• S355J0 (1.0553)→Q345C

• S355J2 (1.0577)→Q345D

• S355K2 (1.0596)→Q345E