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1. 发明授权

EP2799582B1 WEAR RESISTANT AUSTENITIC STEEL HAVING SUPERIOR DUCTILITY AND METHOD FOR PRODUCING SAME 有权转让
公开(公告)号：EP2799582B1
公开(公告)日：2019-06-19
申请号：EP12862562.1
申请日：2012-12-27
申请人： POSCO
发明人： LEE, Soon-Gi , CHOI, Jong-Kyo , NOH, Hee-Goon , CHO, Hyun-Kwan , SUH, In-Shik , LEE, Hak-Cheol , PARK, In-Gyu , LEE, Hong-Ju
IPC分类号： C22C38/00 , C22C38/04 , C22C38/16 , C22C38/60 , C22C38/20 , C22C38/38 , C21D6/00 , C21D8/02 , C21D9/46

2. 发明公开

EP2799582A1 WEAR RESISTANT AUSTENITIC STEEL HAVING SUPERIOR MACHINABILITY AND DUCTILITY METHOD FOR PRODUCING SAME 有权转让
标题翻译：具有优异的可加工性和延展性，AND PROCESS WEAR-奥氏体钢FOR PRODUCING
公开(公告)号：EP2799582A1
公开(公告)日：2014-11-05
申请号：EP12862562.1
申请日：2012-12-27
申请人： Posco
发明人： LEE, Soon-Gi , CHOI, Jong-Kyo , NOH, Hee-Goon , CHO, Hyun-Kwan , SUH, In-Shik , LEE, Hak-Cheol , PARK, In-Gyu , LEE, Hong-Ju
IPC分类号： C22C38/04 , C22C38/38 , C21D8/02 , C21D9/46
CPC分类号： C22C38/60 , B21B1/026 , C21D6/005 , C21D8/0263 , C21D9/46 , C22C38/00 , C22C38/002 , C22C38/04 , C22C38/16 , C22C38/20 , C22C38/36 , C22C38/38
摘要： Provided are a wear resistant austenitic steel having superior machinability and ductility and a method for producing same, the austenitic steel comprising, in weight %, 8 to 15% of manganese (Mn), carbon (C) that satisfies the relationship of 23%
摘要翻译：本发明提供具有优异的机械加工性和延展性及其制造方法的耐磨奥氏体钢，奥氏体钢，其包括，以重量％计，8-15％的锰（Mn），碳（C）那样SATIS外资企业23％的关系< 33.5C-Mn系‰¤37％，铜（Cu）做SATIS外资企业1.6C-1.4（％）‰¤‰¤5％的Cu; 0.03至0.1％的硫（S），0.001〜0.01％，以钙（Ca），其余为Fe和其他不可避免的杂质。。根据本发明，提供了一种具有优异的机械加工奥氏体钢，其中在钢中碳化物的生成被抑制，以防止钢的降解，和耐腐蚀性能充分确保，以使钢具有长的服务使用生活在腐蚀性环境。

3. 发明授权

EP2520684B9 AUSTENITE STEEL MATERIAL HAVING SUPERIOR DUCTILITY 有权转让
标题翻译：奥氏体钢材具有优异的延展性
公开(公告)号：EP2520684B9
公开(公告)日：2017-01-04
申请号：EP10841225.5
申请日：2010-12-28
申请人： POSCO
发明人： LEE, Soon-Gi , CHOI, Jong-Kyo , CHO, Hyun-Kwan , NOH, Hee-Goon
IPC分类号： C22C38/04 , C22C38/18
CPC分类号： C22C38/04 , C22C38/16 , C22C38/20 , C22C38/38

4. 发明授权

EP2520684B1 AUSTENITE STEEL MATERIAL HAVING SUPERIOR DUCTILITY 有权转让
标题翻译：增加拉伸AUSTENITSTAHLMATERIAL
公开(公告)号：EP2520684B1
公开(公告)日：2016-10-26
申请号：EP10841225.5
申请日：2010-12-28
申请人： POSCO
发明人： LEE, Soon-Gi , CHOI, Jong-Kyo , CHO, Hyun-Kwan , NOH, Hee-Goon
IPC分类号： C22C38/04 , C22C38/18
CPC分类号： C22C38/04 , C22C38/16 , C22C38/20 , C22C38/38

5. 发明授权

EP2641987B1 HIGH-STRENGTH STEEL MATERIAL HAVING OUTSTANDING ULTRA-LOW-TEMPERATURE TOUGHNESS AND A PRODUCTION METHOD THEREFOR 有权转让
标题翻译：具有优良的耐用于生产超低温和方法高强度钢材料
公开(公告)号：EP2641987B1
公开(公告)日：2016-04-06
申请号：EP11841040.6
申请日：2011-11-21
申请人： Posco
发明人： UM, Kyung-Keun , CHOI, Jong-Kyo , JANG, Woo-Kil , NOH, Hee-Goon , CHO, Hyun-Kwan
IPC分类号： C22C38/00 , C21D8/02 , C22C38/04 , C22C38/06
CPC分类号： C21D8/005 , C21D6/005 , C21D8/0226 , C21D8/0263 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/44 , C22C38/58

6. 发明授权

EP2971211B1 METHODS OF MAKING ENHANCED WEAR RESISTANT STEEL 有权转让
公开(公告)号：EP2971211B1
公开(公告)日：2020-04-15
申请号：EP14714002.4
申请日：2014-03-05
申请人： ExxonMobil Research and Engineering Company , Posco
发明人： AYER, Raghavan , CHOI, Jong-Kyo , JIN, HyunWoo , LEE, Hak-Cheol , MUELLER, Russell, Robert , SUH, In-Shik , MA, Ning
IPC分类号： C21D8/00 , C21D9/44 , C22C38/04 , C21D6/00 , C21D9/08 , C22C38/38 , C22C38/20 , G01N17/04 , C22C38/06

7. 发明公开

EP2799581A1 WEAR RESISTANT AUSTENITIC STEEL HAVING SUPERIOR MACHINABILITY AND TOUGHNESS IN WELD HEAT AFFECTED ZONES THEREOF AND METHOD FOR PRODUCING SAME 有权转让
标题翻译：穿韧性和机械加工焊接热影响地区的奥氏体不锈钢出色，方法及其生产
公开(公告)号：EP2799581A1
公开(公告)日：2014-11-05
申请号：EP12862011.9
申请日：2012-12-27
申请人： Posco
发明人： LEE, Soon-Gi , CHOI, Jong-Kyo , NOH, Hee-Goon , LEE, Hong-Ju , SUH, In-Shik , PARK, In-Gyu
IPC分类号： C22C38/04 , C21D8/00 , C21D9/46 , C22C38/38
摘要： Provided are a wear resistant austenitic steel having superior machinability and toughness in weld heat affected zones thereof and a method for producing same, the austenitic steel comprising, in weight %, 15 to 25% of manganese (Mn), 0.8 to 1.8% of carbon(C), copper (Cu) that satisfies 0.7C-0.56 (%) ≤ Cu ≤ 5%, the remainder being Fe and other inevitable impurities, the Charpy impact value of the weld heat affected zones at -40 °C being 100J or higher. According to the present invention, austenitic steel having superior machinability is provided in which carbide generation after welding in the weld heat affected zones is inhibited in order to prevent the toughness of the weld heat affected zones from being degraded, and corrosion resistance is improved to enable the steel to be used over a long period of time in a corrosive environment.

8. 发明公开

EP2641987A2 HIGH-STRENGTH STEEL MATERIAL HAVING OUTSTANDING ULTRA-LOW-TEMPERATURE TOUGHNESS AND A PRODUCTION METHOD THEREFOR 有权转让
标题翻译：具有优良的耐用于生产超低温和方法高强度钢材料
公开(公告)号：EP2641987A2
公开(公告)日：2013-09-25
申请号：EP11841040.6
申请日：2011-11-21
申请人： Posco
发明人： UM, Kyung-Keun , CHOI, Jong-Kyo , JANG, Woo-Kil , NOH, Hee-Goon , CHO, Hyun-Kwan
IPC分类号： C22C38/00 , C21D8/02 , C22C38/04 , C22C38/06
CPC分类号： C21D8/005 , C21D6/005 , C21D8/0226 , C21D8/0263 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/44 , C22C38/58
摘要： The present invention provides steel containing manganese and nickel that is used as a structural material for a cryogenic storage container for liquefied natural gas (LNG) or the like, and a manufacturing method thereof; and more particularly, to steel having good cryogenic temperature toughness and also high strength by adding low-cost Mn instead of relatively expensive Ni at an optimized ratio, refining a microstructure through controlled rolling and cooling, and precipitating retained austenite through tempering, and a manufacturing method of the steel. To achieve the object, the technical feature of the present invention is a method of manufacturing high-strength steel with cryogenic temperature toughness. In the method, a steel slab is heated to a temperature within a range of 1,000 to 1,250°C, wherein the steel slab includes, by weight: 0.01-0.06% of carbon (C), 2.0-8.0% of manganese (Mn), 0.01-6.0% of nickel (Ni), 0.02-0.6% of molybdenum (Mo), 0.03-0.5% of silicon (Si), 0.003-0.05% of aluminum (Al), 0.0015-0.01% of nitrogen (N), 0.02% or less of phosphorous (P), 0.01% or less of sulfur (S), with a remainder of iron (Fe) and other unavoidable impurities. Then, the heated slab is finish-rolled at a temperature of 950°C or less at a rolling reduction rate of 40% or more. The rolled steel is cooled to a temperature of 400°C or less at a cooling rate of 2°C/s or more. Thereafter, the steel is tempered for 0.5-4 hours to a temperature within a range of 550 to 650°C after the cooling.
摘要翻译：本发明提供了含钢锰和镍没有被用作用于液化天然气（LNG）或类似物，以及它们的制造方法的低温存储容器的结构材料; 更具体而言，对钢具有良好的低温韧性，因此高强度通过在上优化的比率增加低成本MN代替相对昂贵的Ni，提炼通过控制轧制和冷却的显微组织，沉淀通过回火残留奥氏体，并且制造钢的方法。为了实现上述目的，本发明的技术特征是制造高强度钢的低温韧性的方法。在该方法中，一钢坯被加热到〜1250℃的范围的1000内的温度，worin钢坯包括，按重量计：0时01分至12：碳06％（C），锰的2.0-8.0％（Mn）的，镍0.01-6.0％镍（Ni），氮钼（Mo）的0.02-0.6％，硅0.03-0.5％（Si）的，铝的0.003-0.05重量％（Al）等的0.0015-0.01％（N），0：02％或更少的磷（P），0：01％或更少的硫（S）的，具有铁（Fe）和其他不可避免的杂质的剩余部分。然后，将加热后的钢坯是精轧在950℃或更低的温度下以40％以上的轧制率。轧制钢以2℃/ s以上的冷却速度冷却至400℃或更低的温度。那里之后，将钢冷却后回火0.5-4小时的温度的范围550内，以650℃。

9. 发明授权

EP2799583B1 ABRASION RESISTANT STEEL WITH EXCELLENT TOUGHNESS AND WELDABILITY 有权转让
公开(公告)号：EP2799583B1
公开(公告)日：2018-06-20
申请号：EP12863578.6
申请日：2012-12-27
申请人： Posco
发明人： CHOI, Jong-Kyo , JANG, Woo-Kil , PARK, Young-Hwan , LEE, Hong-Ju
IPC分类号： C22C38/04 , C22C38/12 , C22C38/14 , C21D8/02 , C22C38/02 , C22C38/44 , C22C38/48 , C22C38/54 , C22C38/50 , C21D6/00
CPC分类号： C22C38/54 , C21D6/005 , C21D8/0226 , C21D2211/002 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/44 , C22C38/48 , C22C38/50
摘要： The present invention relates to an abrasion resistant steel comprising 2.6-4.5 wt% of manganese (Mn), 0.05-1.0 wt% of silicon (Si), carbon (C) in an amount satisfying (6-Mn)/50 # C # (10-Mn)/50 by weight, and the balance of iron (Fe) and other inevitable impurities, wherein the Brinell hardness on a surface layer thereof is a value of 360-440. In addition, the present invention relates to an abrasion resistant steel further comprising one or more components selected from the group consisting of 0.1 wt% or less of niobium (Nb) (not including 0 wt%), 0.1 wt% or less of vanadium (V) (not including 0 wt%), 0.1 wt% or less of titanium (Ti) (not including 0 wt%), and 0.02 wt% or less of boron (B) (not including 0 wt%) to complement the performance thereof. Further, the present invention relates to an abrasion resistant steel, wherein the microstructure comprises 90 % or more of martensite, and the average packet size of martensite is 20 µm or less.

10. 发明公开

EP2799583A1 ABRASION RESISTANT STEEL WITH EXCELLENT TOUGHNESS AND WELDABILITY 有权转让
标题翻译： ABRIEBFESTER STAHL MIT HERVORRAGENDER FESTIGKEIT UND SCHWEISSBARKEIT
公开(公告)号：EP2799583A1
公开(公告)日：2014-11-05
申请号：EP12863578.6
申请日：2012-12-27
申请人： Posco
发明人： CHOI, Jong-Kyo , JANG, Woo-Kil , PARK, Young-Hwan , LEE, Hong-Ju
IPC分类号： C22C38/04 , C22C38/12 , C22C38/14
CPC分类号： C22C38/54 , C21D6/005 , C21D8/0226 , C21D2211/002 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/44 , C22C38/48 , C22C38/50
摘要： The present invention relates to an abrasion resistant steel comprising 2.6-4.5 wt% of manganese (Mn), 0.05-1.0 wt% of silicon (Si), carbon (C) in an amount satisfying (6-Mn)/50 # C # (10-Mn)/50 by weight, and the balance of iron (Fe) and other inevitable impurities, wherein the Brinell hardness on a surface layer thereof is a value of 360-440. In addition, the present invention relates to an abrasion resistant steel further comprising one or more components selected from the group consisting of 0.1 wt% or less of niobium (Nb) (not including 0 wt%), 0.1 wt% or less of vanadium (V) (not including 0 wt%), 0.1 wt% or less of titanium (Ti) (not including 0 wt%), and 0.02 wt% or less of boron (B) (not including 0 wt%) to complement the performance thereof. Further, the present invention relates to an abrasion resistant steel, wherein the microstructure comprises 90 % or more of martensite, and the average packet size of martensite is 20 µm or less.
摘要翻译：本发明涉及包含2.6-4.5重量％的锰（Mn），0.05-1.0重量％的硅（Si），碳（C），其量满足（6-Mn）/ 50＃C＃（10-Mn）/ 50，余量为铁（Fe）等不可避免的杂质，其表面层上的布氏硬度为360〜4040。另外，本发明还涉及一种耐磨钢，其还含有选自0.1重量％以下的铌（Nb）（不含0重量％），0.1重量％以下的钒（以上）的一种以上的成分 V）（不包括0重量％），0.1重量％以下的钛（Ti）（不含0重量％）和0.02重量％以下的硼（B）（不含0重量％），以补充性能它们。此外，本发明涉及一种耐磨钢，其中微结构包含90％以上的马氏体，马氏体的平均包装尺寸为20μm以下。

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