公开(公告)号：US20230295784A1

公开(公告)日：2023-09-21

申请号：US18020999

申请日：2021-08-16

申请人： BAOSHAN IRON & STEEL CO., LTD.

发明人： Zan YAO ,  Feng JIN ,  Ziquan YU ,  Zongze HUANG ,  Sixin ZHXO ,  Haoyang ZHAO ,  Ruiyin ZHAI

IPC分类号： C22C38/24 ,  C22C38/02 ,  C22C38/04 ,  C22C38/00 ,  C21D8/06

CPC分类号： C22C38/24 ,  C22C38/02 ,  C22C38/04 ,  C22C38/002 ,  C21D8/065 ,  C21D2211/008 ,  C21D2211/003

摘要： A high-strength and high-fatigue-life steel for a cable, which comprises, in addition to Fe, the following chemical elements in percentages by mass: 0.90-1.00% of C; 0.90-1.50% of Si; 0.25-0.58% of Mn; 0.20-1.00% of Cr; 0.03-0.12% of V; and 0.0008-0.0025% of Ca. In addition, further provided are a wire rod made of the high-strength and high-fatigue-life steel for a cable and a preparation method for the wire rod.

公开(公告)号：US20190169706A1

公开(公告)日：2019-06-06

申请号：US16321287

申请日：2017-08-25

申请人： BAOSHAN IRON & STEEL CO., LTD.

发明人： Ziangjiang LIU ,  Zongze HUANG

IPC分类号： C21D9/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/26 ,  C22C38/22 ,  C21D6/00 ,  C21D1/58 ,  C21D1/18

摘要： A sucker rod steel, a heat treatment process therefor, and a manufacturing method comprising the heat treatment process are provided. The sucker rod steel comprises, in mass percent, the following chemical elements: C: 0.10˜0.20%, Si: 0.40˜0.80%, Mn: 0.20˜0.60%, Mo: 0.36˜0.46%, Cr: 6.15˜7.10%, Al: 0.015˜0.035%, Nb: 0.02˜0.06%, and N: 0.008˜0.015%, with the balance being Fe and other inevitable impurities. The microstructure of the sucker rod steel is tempered martensite and nanoscale precipitates. The grain size is higher than grade 10, the tensile strength is 920˜1320 Mpa, and the AKU2 impact energy is greater than or equal to 180 J.

公开(公告)号：US20230175093A1

公开(公告)日：2023-06-08

申请号：US17920166

申请日：2021-04-29

申请人： BAOSHAN IRON & STEEL CO., LTD.

发明人： Yingtie XU ,  Zongze HUANG ,  Xiangjiang LIU ,  Genjie WAN ,  Yanfeng QI

IPC分类号： C21D9/52 ,  C22B9/18 ,  C21C5/52 ,  C22C33/04 ,  C22C33/00 ,  C21C7/06 ,  C21C7/10 ,  C21D8/06 ,  C22C38/02 ,  C22C38/04 ,  C22C38/00 ,  C22C38/06 ,  C21C7/064

CPC分类号： C21D9/525 ,  C22B9/18 ,  C21C5/5241 ,  C22C33/04 ,  C22C33/006 ,  C21C7/06 ,  C21C7/10 ,  C21D8/065 ,  C22C38/02 ,  C22C38/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/06 ,  C21C7/064

摘要： A process for smelting steel for ultrafine carborundum sawing wires, comprising: 1) in a vacuum induction furnace, using pure iron and low-phosphorus pig iron as raw materials to be melted into molten steel under the protection of argon; vacuumizing and smelting, and degassing; using silicon iron as a deoxidizer to adjust components of the molten steel; and casting a circular ingot in vacuum; 2) cleaning the surface of the circular ingot to produce an electrode bar; 3) remelting and smelting the electrode bar as raw material to a cylindrical electroslag ingot in an electroslag furnace, wherein the electroslag protecting slag comprises: CaF2: 45-55%, Al2O3: 15-25%, SiO2: 20-25%, Na2O: 2-4%, and K2O: 1-2%; 4) forging the electroslag ingot to a square billet; and 5) rolling the forged billet to a steel wire rod, and the steel wire rod comprising [C]: 0.92-1.1%, [Si]: 0.3-0.4%, [Mn]: 0.5-0.8%, [Al]

公开(公告)号：US20240052470A1

公开(公告)日：2024-02-15

申请号：US18271172

申请日：2022-01-12

申请人： BAOSHAN IRON & STEEL CO., LTD.

发明人： Jiaqiang GAO ,  Sixin ZHAO ,  Zongze HUANG ,  Lin CHEN

IPC分类号： C22C38/58 ,  C22C38/02 ,  C22C38/44 ,  C22C38/06 ,  C22C38/26 ,  C22C38/24 ,  C22C38/60 ,  C22C38/42 ,  C21D8/06

CPC分类号： C22C38/58 ,  C22C38/02 ,  C22C38/44 ,  C22C38/06 ,  C22C38/26 ,  C22C38/24 ,  C22C38/60 ,  C22C38/42 ,  C21D8/065 ,  C21D2211/002 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/009

摘要： Disclosed is a non-quenched and tempered round steel with high strength, high toughness and easy cutting, comprising the following chemical elements in percentage by mass: C: 0.36-0.45%, Si: 0.20-0.70%, Mn: 1.25-1.85%, Cr: 0.15-0.55%, Ni: 0.10-0.25%, Mo: 0.10-0.25%, Al: 0.02-0.05%, Nb: 0.001-0.040%, V: 0.10-0.25%, S: 0.02-0.06%, and the balance being Fe and inevitable impurities. Also disclosed is a method for manufacturing the non-quenched and tempered round steel, comprising the steps of: S1: smelting and casting; S2: heating; S3: forging or rolling; and S4: finishing. The non-quenched and tempered round steel with high strength, high toughness and easy cutting described above has high strength, good impact toughness, elongation and cross-sectional shrinkage, and has good cutting performance and fatigue resistance, and can be used in situations requiring a high-strength steel material, such as automobiles and engineering machinery.

公开(公告)号：US20200095650A1

公开(公告)日：2020-03-26

申请号：US16621512

申请日：2018-06-11

申请人： BAOSHAN IRON & STEEL CO., LTD.

发明人： Dajiang YU ,  Xijun JIANG ,  Zongze HUANG ,  Rui HUANG

IPC分类号： C21D9/46 ,  C21D8/02 ,  C21D6/00 ,  C22C38/14 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/12

摘要： A free-cutting and non-quenched and tempered steel, comprising the following chemical elements by mass percentages: C: 0.35-0.45%, Si: 0.45-0.0.65%, Mn: 1.35-1.65%, S: 0.025-0.065%, V: 0.07-0.15%, Ti: 0.01-0.018%, N: 0.012-0.017%, Al: 0.015-0.035%, Ca: 0.0008-0.0025%, with the remaining being iron and other unavoidable impurities, wherein the S and Ca elements satisfy the relationship S/Ca=20-60. A manufacturing method of the free-cutting and non-quenched and tempered steel, comprising the following steps: (1) smelting and refining; (2) casting; (3) rolling; (4) forging; and (5) two-stage cooling.