AB EQ47 Shipbuilding Steel Plate Supplier, China The shipbuilding steel grade is ABS grade EQ47. The steel grade is equivalent with CCS EH460, BV EH460, NV E460, GL-E460, KR EH47, LR EH46, KE47, and RINA-E460. It is a kind of marine steel plate. The minimum yield strength of the steel plate is 460 ...