新日铁公司开发成功可生产韧性高和可阻止脆性龟裂厚钢板的生产工艺，采用这种厚板可确保船舶、海洋构件、超高层建筑等大型钢构件的安全性和可靠性。这种钢板的开发和使用届世界首创．现已集中生产并正式销售。新日铁公司开发的工艺是，通过细化钢的晶粒以提高抵抗脆性破坏的 The successful development of Nippon Steel Corporation can produce high toughness and prevent the production of brittle crack steel plate, the use of this plate to ensure the safety of ship, marine components, high-rise buildings and other large steel components of the safety and reliability. This steel plate development and use of the world’s first. Has been focused on production and sales. Nippon Steel Corporation developed technology is through the refinement of the steel grain to improve the resistance to brittle failure