Grade | GB: Q345B, Q345C, Q345D, Q345E, Q390A, Q390B, Q390C,Q390D, Q390E, Q420, Q420B, Q420C, Q420D, Q420E, Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D, Q620E, Q690D, Q690E,etc. EN:S185,S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q ,etc. ASTM: Grade B, Grade C, Grade D, Grade 36, Grade 40, Grade42, Grade 50, Grade 55, Grade 60, Grade 65, Grade80, 4130, 4140, 5160.etc. JIS: SPFC, SPHD, SPHE,etc. |
Applications | Widely used in mechanical manufacture,construction field,farm vehicles,agriculture greenhouse,automotive industry, railway, decoration, steel structure, etc. |