公开(公告)号：US20230416865A1

公开(公告)日：2023-12-28

申请号：US18247741

申请日：2020-11-12

申请人： INSTITUTE OF RESEARCH OF IRON AND STEEL, JIANGSU PROVINCE/SHA-STEEL, CO. LTD (CN) ,  ZHANGJIAGANG RONGSHENG SPECIAL STEEL CO. LTD. ,  JIANGSU SHAGANG GROUP CO., LTD.

发明人： Han MA ,  Kui SHEN ,  Xianjun HU ,  Lei WANG

IPC分类号： C21D9/52 ,  C22C33/04 ,  C22C38/32 ,  C22C38/28 ,  C22C38/24 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/20 ,  C21B13/12 ,  C21D7/13

CPC分类号： C21D9/525 ,  C22C33/04 ,  C22C38/32 ,  C22C38/28 ,  C22C38/24 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/002 ,  C22C38/001 ,  C22C38/20 ,  C21B13/12 ,  C21D7/13 ,  C21D2261/00

摘要： A wire rod for a 5000 MPa-grade diamond wire and a production method are provided. The wire rod includes the following chemical components: 1.01% to 1.1% of carbon, 0.15% to 0.4% of silicon, 0.3% to 0.6% of manganese, 0.01% to 0.4% of chromium, 0.0005% to 0.002% of boron and/or 0.01% to 0.09% of vanadium; and the balance of iron and impurities. The production method includes vacuum melting, electroslag remelting and/or vacuum consumable melting, grinding after cogging/forging, high-speed wire rolling and cooling, and cogging at 1030° C. to 1060° C. The wire rod, with structural uniformity and tensile strength of more than or equal to 1320 MPa, can be configured to prepare 5000 MPa-grade steel wires with a diameter of 40 μm to 46 μm.

公开(公告)号：US20170175221A1

公开(公告)日：2017-06-22

申请号：US15117072

申请日：2014-02-18

申请人： INSTITUTE OF RESEARCH OF IRON AND STEEL, JIANGSU PROVINCE/SHA-STEEL, CO. LTD

发明人： Lei WANG ,  Han MA ,  Ping LI

IPC分类号： C21D9/52 ,  C22C38/28 ,  C22C38/26 ,  C22C38/24 ,  B21C1/02 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C33/04 ,  B22D11/00 ,  C22C38/32 ,  C22C38/22

CPC分类号： C21D9/525 ,  B21C1/02 ,  B22D11/001 ,  C21D8/065 ,  C22C33/04 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32

摘要： There is provided a high-carbon steel wire rod and a preparation method thereof. Wherein, the high-carbon steel wire rod comprising the following ingredients: C, Si, Mn, Cr, V, Ti and Fe. The high-carbon steel wire rod has satisfactory mechanical properties, including high strength with an average tensile strength of 1560 MPa as well as good plasticity with an average after-fracture shrinkage rate of 30% and an after-fracture elongation percentage larger than or equal to 9%, which can meet the performance requirements for producing 2300 MPa level pre-stressed steel strand.