首页> 外文期刊>NIPPON STEEL TECHNICAL REPORT >780-N/mm~2 class high tensile strength steel plates with large-heat-input-welability and low-weld-cracking- susceptibility for architectural construction
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780-N/mm~2 class high tensile strength steel plates with large-heat-input-welability and low-weld-cracking- susceptibility for architectural construction

机译:780-N / mm〜2级高热输入焊接性,低焊接裂纹敏感性的高抗拉强度钢板,用于建筑

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摘要

Two steels were developed for use as new 780-N/mm~2 high-tensile strength heavy-gage steel plates (HT780) for super highrise buildings. One (steel A) is a 1.4Ni-B steel mainly designed to ensure the desired toughness of the heat-affected zone (HAZ) of large heat input welds. The other (steel B) is a low C-1.2Cu-1.4Ni-B free steel mainly designed to lower the preheating temperature.
机译:开发了两种钢,作为用于超高层建筑的新型780-N / mm〜2高抗拉强度重型钢板(HT780)。一种(钢A)是1.4Ni-B钢,主要设计用于确保大型热输入焊缝的热影响区(HAZ)的所需韧性。另一种(钢B)是低C-1.2Cu-1.4Ni-B游离钢,主要用于降低预热温度。

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