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发明授权
US07540711B2 Heat resisting steel, steam turbine rotor shaft using the steel, steam turbine, and steam turbine power plant 有权
耐热钢，蒸汽轮机转子轴采用钢铁，蒸汽轮机和蒸汽轮机发电厂

Heat resisting steel, steam turbine rotor shaft using the steel, steam turbine, and steam turbine power plant
摘要：
The invention provides a heat resisting steel having superior high-temperature strength and notch rupture strength, a rotor shaft using the heat resisting steel, a steam turbine using the rotor shaft, and a power plant using the steam turbine. The heat resisting steel is made of a Cr—Mo—V low-alloy steel containing 0.15-0.40% by weight of C, not more than 0.5% of Si, 0.05-0.50% of Mn, 0.5-1.5% of Ni, 0.8-1.5% of Cr, 0.8-1.8% of Mo and 0.05-0.35% of V, and having a (Ni/Mn) ratio of 3.0-10.0.
摘要（中）：

本发明提供一种具有优异的高温强度和切口断裂强度的耐热钢，使用该耐热钢的转子轴，使用该转子轴的蒸汽轮机，以及使用该蒸汽轮机的动力装置。 耐热钢由Cr-Mo-V低合金钢制成，含有0.15-0.40重量％的C，不超过0.5％的Si，0.05-0.50％的Mn，0.5-1.5％的Ni，0.8 -1.5％的Cr，0.8-1.8％的Mo和0.05-0.35％的V，并且（Ni / Mn）比为3.0-10.0。

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