Recent development of construction and design technology gives larger and heavier steel structures. In addition, reductions of construction and maintenance cost are also recently focused in various fields. From this viewpoint, higher strength, better weldability and higher performance are required for structural steels. In order to achieve these requirements, advanced and sophisticated process technology is critical in addition to precise material design. This paper describes the development of the Super-OLAC (On Line Accelerated Cooling) and its various products.

Steel plate, High performance, High quality, High strength, Improved weldability, Accelerated cooling process, Super-OLAC, Heavy steel product for shipbuilding, Heavy steel product for bridge, Heavy steel product for building and construction use, Steel for construction and machinery, High tensile strength steel for pressure vessel use