Hydroelectric steel and preparation method thereof

• Main Authors: SUI YI, WANG QI, WANG ZHAODONG, DENG XIANGTAO
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2023
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to hydroelectric steel and a preparation method thereof, and the hydroelectric steel comprises the following chemical components in percentage by weight: 0.05-0.08% of C; less than or equal to 0.20% of Si; 0.6% to 1.2% of Mn; less than or equal to 0.015% of P; s < = 0.004%; 0.5 to 0.9 percent of Cr; 4.0% to 4.8% of Ni; 0.005 to 0.008% of Mg (magnesium); 0.012% to 0.018% of La; 0.02 to 0.03 percent of Zr; 0.008% to 0.015% of N; based on the chemical components and the proportion, the hydroelectric steel provided by the invention can meet the production requirement of the hydroelectric steel with the extra-thick specification of more than 120mm and the strength grade of 1000MPa. 本发明涉及一种水电钢及其制备方法，其中，水电钢中化学成分按重量百分比为：C：0.05～0.08％；Si≤0.20％；Mn：0.6～1.2％；P≤0.015％；S≤0.004％；Cr：0.5～0.9％；Ni:4.0～4.8％；Mg:0.005～0.008％；La:0.012～0.018％；Zr:0.02～0.03％；N:0.008～0.015％；余量为Fe和不可避免的杂质，基于上述化学成分和配比，本申请所提及的水电钢可以满足120mm以上特厚规格1000MPa强度级别水电钢生产。