The rolling process of LR FH32 high strength marine steel plate

The latest development features of LR FH32 high strength marine steel plates are low carbon, manganese and micro alloy.

LR FH32 high strength marine steel plates usually adopt TMCP rolling process. In the latest public research and development achievements, there is unconventional rolling methods, and special refinement of austenite grain technology is one of them.

After rolling the austenite recrystallization zone, the rolling rate in the non recrystallized austenite area is reduced by more than 40%. Then the intermediate billet is heated to austenite recrystallization zone to change Ar3 above the point. Excellent toughness of LR FH32 high strength marine steel plate is obtained by its combination with TMCP technology.