Ship Building Steel Plates Ship Building Steel Plates Supplier In India Ship Building Steel Plates Manufacturer In India Shipbuilding steel plate refers to hot-rolled steel for the manufacture of ship structures produced in accordance with the requirements of the construction society. Often used as a special steel ordering, scheduling, sales, a ship including ship plates, steel and so on. AH36 and DH36 are both defined as a high strength structural steel, which are primarily used in the shipbuilding industry. Steel is used with frequently in the shipbuilding industry due to its ideal mechanical properties, structural integrity and low cost. The major downside to steel though, is the fact that it is quite heavy.