6mm EH36 steel and manufacturing method thereof

The invention discloses 6mm EH36 steel and a manufacturing method thereof, and belongs to the technical field of steel production. The 6mm EH36 steel comprises the following chemical components in percentage by mass: 0.08-0.10% of C, 1.4-1.5% of Mn, 0.10-0.15% of Si, 0.10-0.15% of Cr, 0.18-0.28% of Cu, 0.030-0.045% of Nb, 0.01-0.02% of Ti, less than or equal to 0.016% of P, less than or equal to 0.005% of S, less than or equal to 0.38% of Ceq and the balance of Fe and inevitable impurities. According to the method for manufacturing the 6mm EH36 steel, the follow-up manufacturing process can be matched through component optimization, the rolling difficulty is reduced, and the performance of a finished product is guaranteed, the width range of a plate shape is widened by adopting a 3500mm double-rack rolling mill, and decoiling is not needed after rolling; and in the rolling process, the temperature drop is reduced, the rolling pressure is optimized, the final rolling temperature is controlled, straightening pa