CN116083808A - 一种≤q345级市场流通板用钢及其生产方法 - Google Patents
一种≤q345级市场流通板用钢及其生产方法 Download PDFInfo
- Publication number
- CN116083808A CN116083808A CN202310109989.9A CN202310109989A CN116083808A CN 116083808 A CN116083808 A CN 116083808A CN 202310109989 A CN202310109989 A CN 202310109989A CN 116083808 A CN116083808 A CN 116083808A
- Authority
- CN
- China
- Prior art keywords
- steel
- percent
- molten iron
- equal
- less
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
本发明公开了一种≤Q345级市场流通板用钢及其生产方法,涉及钢铁生产技术领域,其化学成分及质量百分比如下:C:0.17%~0.20%,Si:0.10%~0.30%,Mn:0.70%~1.10%,P:0.030%,S:0.020%,Nb≤0.060%,Ti≤0.020%,余量为Fe和不可避免的杂质。根据生产实际情况,降低了铌、钛等贵重元素使用,采用合金替代,并通过冶炼和轧制工艺优化,在保证低合金高强度结构钢良好的力学性能的同时,降低市场流通板的生产成本;同时也去除了铝的使用量,采用了成本更为低廉的碳化硅进行脱氧,有效降低了冶炼成本。
Description
技术领域
本发明涉及钢铁生产技术领域,特别是涉及一种≤Q345级市场流通板用钢及其生产方法。
背景技术
随着钢铁行业形势、市场环境的变化,高质量低成本生产要求深入人心。以节能、降耗、减排为特征的绿色生产模式,对降本增效的利好是长期的。目前,不大于Q355级别市场需求量较大,是商家的必争之地,也是价格战最严重的品种。因此,为了适应市场的变化,促使钢厂不断创新工艺技术,降低品种成本。
发明内容
本发明针对上述技术问题,克服现有技术的缺点,提供一种≤Q345级市场流通板用钢,其化学成分及质量百分比如下:C:0.17%~0.20%,Si:0.10%~0.30%,Mn:0.70%~1.10%,P:0.030%,S:0.020%,Nb≤0.060%,Ti≤0.020%,余量为Fe和不可避免的杂质。
本发明进一步限定的技术方案是:
前所述的一种≤Q345级市场流通板用钢,其化学成分及质量百分比如下:C:0.17%~0.19%,Si:0.10%~0.20%,Mn:0.80%~1.10%,P:0.030%,S:0.020%,Nb≤0.060%,Ti≤0.020%,余量为Fe和不可避免的杂质。
前所述的一种≤Q345级市场流通板用钢,其化学成分及质量百分比如下:C:0.18%~0.20%,Si:0.20%~0.30%,Mn:0.70%~0.90%,P:0.030%,S:0.020%,Nb≤0.060%,Ti≤0.020%,余量为Fe和不可避免的杂质。
本发明的另一目的在于提供一种≤Q345级市场流通板用钢生产方法,包括:
S1、采用鱼雷罐进行铁水运输,运输过程中加入活性石灰600~1000kg,达到脱硫、保温的目的;铁水出铁后导入铁水罐中进行运输,铁水罐最大容量300吨,加入活性石灰800~1000kg进行脱硫;
S2、铁水到达炼钢厂后进行倒罐、扒渣操作,铁水温度1200~1350度;
S3、铁水入转炉/电炉,同时加入一定比例的废钢进行冶炼,冶炼终点温度1620~1700℃,终点C:0.050%~0.15%,终点P≤0.030%,进行出钢作业,出钢过程中加入50~100kg碳化硅进行脱氧;
S4、LF炉进行测温、取样后,采用碳化硅脱氧,脱氧8~10min,达到白渣要求进行合金化;
S5、合金化后钢水吊运至连铸进行浇铸,过热度15~35度,浇铸速度0.6~1.3m/min;
S6、坯料表检合格送至加热炉,奥氏体化温度1150~1250℃,采用常规轧制,终轧温度700~900℃,返红温度500~700℃;
S7、钢板剪切、标识、表检合格后入库发货。
前所述的一种≤Q345级市场流通板用钢生产方法,钢板以铁素体珠光体为主,同时含有少量贝氏体的混合组织。
本发明的有益效果是:根据生产实际情况,降低了铌、钛等贵重元素使用,采用合金替代,并通过冶炼和轧制工艺优化,在保证低合金高强度结构钢良好的力学性能的同时,降低市场流通板的生产成本;同时也去除了铝的使用量,采用了成本更为低廉的碳化硅进行脱氧,有效降低了冶炼成本,提高了企业的市场竞争力。
附图说明
图1为实施例1产品厚度方向金相组织图。
实施方式
实施例
本实施例提供的一种≤Q345级市场流通板用钢,其化学成分及质量百分比如下:C:0.18%,Si:0.16%,Mn:0.97%,P:0.013%,S:0.006%,Nb:0.003%,Ti:0.001%,余量为Fe和不可避免的杂质。
生产方法包括:
S1、采用鱼雷罐进行铁水运输,运输过程中加入活性石灰900kg,达到脱硫、保温的目的;铁水出铁后导入铁水罐中进行运输,铁水罐最大容量300吨,加入活性石灰850kg进行脱硫;
S2、铁水到达炼钢厂后进行倒罐、扒渣操作,铁水温度1315度;
S3、铁水入转炉/电炉,同时加入一定比例的废钢进行冶炼,冶炼终点温度1689℃,终点C:0.09%,终点P:0.009%,进行出钢作业,出钢过程中加入60kg碳化硅进行脱氧;
S4、LF炉进行测温、取样后,采用碳化硅脱氧,脱氧10min,达到白渣要求进行合金化;
S5、合金化后钢水吊运至连铸进行浇铸,过热度26度,浇铸速度0.9m/min;
S6、坯料表检合格送至加热炉,奥氏体化温度1230℃,采用常规轧制,终轧温度870℃,返红温度560℃;
S7、钢板剪切、标识、表检合格后入库发货。
实施例
本实施例提供的一种≤Q345级市场流通板用钢,其化学成分及质量百分比如下:C:0.19%,Si:0.27%,Mn:0.79%,P:0.021%,S:0.010%,Nb:0.002%,Ti:0.003%,余量为Fe和不可避免的杂质。
生产方法包括:
S1、采用鱼雷罐进行铁水运输,运输过程中加入活性石灰700kg,达到脱硫、保温的目的;铁水出铁后导入铁水罐中进行运输,铁水罐最大容量300吨,加入活性石灰800kg进行脱硫;
S2、铁水到达炼钢厂后进行倒罐、扒渣操作,铁水温度1270度;
S3、铁水入转炉/电炉,同时加入一定比例的废钢进行冶炼,冶炼终点温度1650℃,终点C:0.13%,终点P:0.016%,进行出钢作业,出钢过程中加入90kg碳化硅进行脱氧;
S4、LF炉进行测温、取样后,采用碳化硅脱氧,脱氧8min,达到白渣要求进行合金化;
S5、合金化后钢水吊运至连铸进行浇铸,过热度19度,浇铸速度1.1m/min;
S6、坯料表检合格送至加热炉,奥氏体化温度1140℃,采用常规轧制,终轧温度750℃,返红温度620℃;
S7、钢板剪切、标识、表检合格后入库发货。
将实施例1、实施例2获得的产品进行力学性能测试,结果如下表:
采用去除铌、钛、铝的设计思路,采用了碳化硅的脱氧方式,采用了常规轧制技术及冷却手段,获得了以铁素体珠光体同时含有少量贝氏体的混合组织,满足了产品的强韧性要求,有效降低了生产制造成本,提高了市场竞争力。
除上述实施例外,本发明还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案,均落在本发明要求的保护范围。
Claims (5)
1.一种≤Q345级市场流通板用钢,其特征在于:其化学成分及质量百分比如下:C:0.17%~0.20%,Si:0.10%~0.30%,Mn:0.70%~1.10%,P:0.030%,S:0.020%,Nb≤0.060%,Ti≤0.020%,余量为Fe和不可避免的杂质。
2.根据权利要求1所述的一种≤Q345级市场流通板用钢,其特征在于:其化学成分及质量百分比如下:C:0.17%~0.19%,Si:0.10%~0.20%,Mn:0.80%~1.10%,P:0.030%,S:0.020%,Nb≤0.060%,Ti≤0.020%,余量为Fe和不可避免的杂质。
3.根据权利要求1所述的一种≤Q345级市场流通板用钢,其特征在于:其化学成分及质量百分比如下:C:0.18%~0.20%,Si:0.20%~0.30%,Mn:0.70%~0.90%,P:0.030%,S:0.020%,Nb≤0.060%,Ti≤0.020%,余量为Fe和不可避免的杂质。
4.一种≤Q345级市场流通板用钢生产方法,其特征在于:包括:
S1、采用鱼雷罐进行铁水运输,运输过程中加入活性石灰600~1000kg,达到脱硫、保温的目的;铁水出铁后导入铁水罐中进行运输,铁水罐最大容量300吨,加入活性石灰800~1000kg进行脱硫;
S2、铁水到达炼钢厂后进行倒罐、扒渣操作,铁水温度1200~1350度;
S3、铁水入转炉/电炉,同时加入一定比例的废钢进行冶炼,冶炼终点温度1620~1700℃,终点C:0.050%~0.15%,终点P≤0.030%,进行出钢作业,出钢过程中加入50~100kg碳化硅进行脱氧;
S4、LF炉进行测温、取样后,采用碳化硅脱氧,脱氧8~10min,达到白渣要求进行合金化;
S5、合金化后钢水吊运至连铸进行浇铸,过热度15~35度,浇铸速度0.6~1.3m/min;
S6、坯料表检合格送至加热炉,奥氏体化温度1150~1250℃,采用常规轧制,终轧温度700~900℃,返红温度500~700℃;
S7、钢板剪切、标识、表检合格后入库发货。
5.根据权利要求1所述的一种≤Q345级市场流通板用钢及其生产方法,其特征在于:钢板以铁素体珠光体为主,同时含有少量贝氏体的混合组织。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310109989.9A CN116083808A (zh) | 2023-02-14 | 2023-02-14 | 一种≤q345级市场流通板用钢及其生产方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310109989.9A CN116083808A (zh) | 2023-02-14 | 2023-02-14 | 一种≤q345级市场流通板用钢及其生产方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116083808A true CN116083808A (zh) | 2023-05-09 |
Family
ID=86210106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202310109989.9A Pending CN116083808A (zh) | 2023-02-14 | 2023-02-14 | 一种≤q345级市场流通板用钢及其生产方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN116083808A (zh) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103045939A (zh) * | 2012-12-27 | 2013-04-17 | 安阳钢铁股份有限公司 | 一种资源节约型q345低合金系列钢板及其生产方法 |
CN103556055A (zh) * | 2013-10-15 | 2014-02-05 | 莱芜钢铁集团有限公司 | 用于海洋天然气开采平台结构的热轧h型钢及其生产方法 |
CN104928580A (zh) * | 2015-07-10 | 2015-09-23 | 攀钢集团攀枝花钢铁研究院有限公司 | 低Mn热轧钢及其制备方法 |
CN109023080A (zh) * | 2018-09-05 | 2018-12-18 | 张家港创博金属科技有限公司 | 韧塑性优异高磷钢及生产方法 |
CN109797350A (zh) * | 2019-02-26 | 2019-05-24 | 南京钢铁股份有限公司 | 一种Q345系列低合金钢Mn含量减量化制造方法 |
CN111705266A (zh) * | 2020-06-29 | 2020-09-25 | 阳春新钢铁有限责任公司 | 一种300MPa级热轧光圆耐火钢筋及其制造方法 |
CN111793766A (zh) * | 2020-05-14 | 2020-10-20 | 南京钢铁股份有限公司 | 一种极低成本psl1薄规格出口管线钢生产方法 |
CN112410667A (zh) * | 2020-11-10 | 2021-02-26 | 马鞍山钢铁股份有限公司 | 一种低成本厚重q355e热轧h型钢及其制造方法 |
CN113106223A (zh) * | 2021-04-15 | 2021-07-13 | 天津市新天钢钢铁集团有限公司 | 一种普碳钢坯轧制低合金高强度q355b薄钢带的方法 |
-
2023
- 2023-02-14 CN CN202310109989.9A patent/CN116083808A/zh active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103045939A (zh) * | 2012-12-27 | 2013-04-17 | 安阳钢铁股份有限公司 | 一种资源节约型q345低合金系列钢板及其生产方法 |
CN103556055A (zh) * | 2013-10-15 | 2014-02-05 | 莱芜钢铁集团有限公司 | 用于海洋天然气开采平台结构的热轧h型钢及其生产方法 |
CN104928580A (zh) * | 2015-07-10 | 2015-09-23 | 攀钢集团攀枝花钢铁研究院有限公司 | 低Mn热轧钢及其制备方法 |
CN109023080A (zh) * | 2018-09-05 | 2018-12-18 | 张家港创博金属科技有限公司 | 韧塑性优异高磷钢及生产方法 |
CN109797350A (zh) * | 2019-02-26 | 2019-05-24 | 南京钢铁股份有限公司 | 一种Q345系列低合金钢Mn含量减量化制造方法 |
CN111793766A (zh) * | 2020-05-14 | 2020-10-20 | 南京钢铁股份有限公司 | 一种极低成本psl1薄规格出口管线钢生产方法 |
CN111705266A (zh) * | 2020-06-29 | 2020-09-25 | 阳春新钢铁有限责任公司 | 一种300MPa级热轧光圆耐火钢筋及其制造方法 |
CN112410667A (zh) * | 2020-11-10 | 2021-02-26 | 马鞍山钢铁股份有限公司 | 一种低成本厚重q355e热轧h型钢及其制造方法 |
CN113106223A (zh) * | 2021-04-15 | 2021-07-13 | 天津市新天钢钢铁集团有限公司 | 一种普碳钢坯轧制低合金高强度q355b薄钢带的方法 |
Non-Patent Citations (1)
Title |
---|
王明海: "《冶金生产概论》", 北京:冶金工业出版社, pages: 115 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11649516B2 (en) | Method for manufacturing thin-specification high-Ti wear-resistant steel NM450 | |
AU2020442274B2 (en) | 690 MPa-graded easy-to-weld corrosion-resisting high-strength steel and manufacturing method therefor | |
CN101153371B (zh) | 高强度冷成型热连轧钢板及其生产方法 | |
CN106939391A (zh) | 一种Ca微合金化易切削高强度胀断连杆用钢及制造方法 | |
CN111334725B (zh) | 一种低碳超高强度合金链条钢盘条及其制造方法 | |
EP3828293A1 (en) | Corrosion-resistant mirror die steel and manufacturing method therefor | |
CN112813345A (zh) | 一种冷加工工程机械液压活塞杆用的非调质钢及制备方法 | |
CN101845597B (zh) | 低成本80公斤级特厚调质钢板及其制造方法 | |
CN101956140A (zh) | 一种大型球磨机用衬板及其铸造方法 | |
CN102409233A (zh) | 一种低温工程机械用钢及其生产方法 | |
CN110923549A (zh) | 一种900MPa级热轧高强度起重机起重臂用结构钢及其生产方法 | |
CN114182179A (zh) | 一种工程机械用高强斗齿钢及其生产方法与热处理工艺 | |
CN109930063B (zh) | 一种工程机械履带底盘轮体用钢及其生产方法 | |
CN112159934A (zh) | 一种抗腐蚀磨损耐磨钢板及其制备方法 | |
CN112281058B (zh) | 一种大型叉车货叉用钢及其生产工艺 | |
CN115382914A (zh) | 一种超硬耐磨锻轧钢球制备方法 | |
CN113151744B (zh) | 一种工程机械回转支承用钢s48c及其生产方法 | |
CN114480945A (zh) | 一种利用在线余热生产30mm以下调质耐磨钢板NM400的方法 | |
CN114774774A (zh) | 一种大直径低偏析油缸活塞杆用圆钢及其制造方法 | |
CN115125448A (zh) | 一种冷加工液压活塞杆用非调质钢及制备方法 | |
CN116083808A (zh) | 一种≤q345级市场流通板用钢及其生产方法 | |
CN112941420B (zh) | 一种高强度耐冲击耐热耐低温的合金钢及制造工艺 | |
CN101724791B (zh) | 抗辐射性能优良的中高温特厚钢板及其制造方法 | |
CN117604389B (zh) | 一种易焊接的420MPa级低合金高强钢生产方法 | |
CN115386802B (zh) | 一种10.9级大规格风电螺栓用非调质钢及其生产方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |