Trends in Product Developments of Bars and Wire Rods

Outline of trend in development of steel bar and wire rod products is guided. There is a certain tendency towards better function or higher strength of steel products, fewer manufacturing process from customers’needs with increasing importance of global environment preservation. To satisfy these requirements, Nippon Steel has been keeping on supplying new products of high performance. Authors introduce several examples of developed bars and wire rods of special steel, high carbon steel wires and the latest nano-level materials characterization techniques which supports microstructure control of these products.