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1. 发明专利

SG11202101711UA SOLID WIRE FOR GAS METAL ARC WELDING 未知
公开(公告)号：SG11202101711UA
公开(公告)日：2021-03-30
申请号：SG11202101711U
申请日：2019-04-01
申请人： JFE STEEL CORP , KOBE STEEL LTD
发明人： TAKADA ATSUSHI , IZUMI DAICHI , ARAO RYO , KOZUKI SHOHEI , UEDA KEIJI , HAYAKAWA NAOYA , YAMASHITA KEN , HAN PENG
IPC分类号： B23K35/30
摘要： Provided is a solid wire for gas metal arc welding, which has a small amount of fume during welding and is suitable as a welding material for high Mn steel materials. The wire has a chemical composition containing, in mass%, C: 0.2% to 0.8%, Si: 0.15% to 0.90%, Mn: 17.0% to 28.0%, P: 0.03% or less, S: 0.03% or less, Ni: 0.01% to 10.00%, Cr: 0.4% to 4.0%, Mo: 0.01% to 3.50%, B: less than 0.0010%, and N: 0.12% or less, with the balance consisting of Fe and inevitable impurities. It may contain at least one selected from V, Ti, Nb, Cu, Al, Ca and REM, if necessary. The wire has excellent manufacturability, can significantly suppress the amount of fume generated during gas metal arc welding, and can easily manufacture a weld joint having high strength and excellent impact toughness at cryogenic tem peratures.

2. 发明专利

PH12021550373A1 SOLID WIRE FOR GAS METAL ARC WELDING 未知
公开(公告)号：PH12021550373A1
公开(公告)日：2021-11-08
申请号：PH12021550373
申请日：2021-02-22
申请人： JFE STEEL CORP , KOBE STEEL LTD
发明人： TAKADA ATSUSHI , IZUMI DAICHI , ARAO RYO , KOZUKI SHOHEI , UEDA KEIJI , HAYAKAWA NAOYA , YAMASHITA KEN , HAN PENG
IPC分类号： B23K35/30
摘要： The present invention provides a solid wire that is for gas metal arc welding, that generates less fumes during welding, and that is suitable as a welding material for a high-Mn steel material. The solid wire for gas metal arc welding according to the present invention has a composition containing, in mass pcnt , 0.2-0.8 pcnt of C, 0.15-0.90 pcnt of Si, 17.0-28.0 pcnt of Mn, 0.03 pcnt or less of P, 0.03 pcnt or less of S, 0.01-10.00 pcnt of Ni, 0.4-4.0 pcnt of Cr, 0.01-3.50 pcnt of Mo, 0.0010 pcnt or less of B, and 0.12 pcnt or less of N, by mass, the remaining portion being Fe and unavoidable impurities. The solid wire optionally contains, as necessary, one or more selected from V, Ti, and Nb, and one or more selected from Cu, Al, Ca, and REM.

3. 发明专利

PH12020550830A1 HIGH-MN STEEL AND METHOD FOR MANUFACTURING SAME 未知
公开(公告)号：PH12020550830A1
公开(公告)日：2021-05-10
申请号：PH12020550830
申请日：2020-06-05
申请人： JFE STEEL CORP
发明人： NAKASHIMA KOICHI , UEDA KEIJI , KITSUYA SHIGEKI , ARAO RYO , IZUMI DAICHI , IGI SATOSHI , ONO TOMOHIRO
IPC分类号： C22C38/00 , C21D8/02 , C22C38/58
摘要： Provided is a high-Mn steel having exceptional high strength and low-temperature toughness, and furthermore having exceptional low-temperature CTOD characteristics. The high-Mn steel has: a component composition comprising, in percent by mass, 0.10-0.70 pcnt of C, 0.05-0.50 pcnt of Si, 20-30 pcnt of Mn, 0.030 pcnt or less of P, 0.0070 pcnt or less of S, 0.01-0.07 pcnt of Al, 0.5-7.0 pcnt of Cr, at least 0.01 pcnt and less than 0.1 pcnt of Ni, 0.0005-0.0050 pcnt of Ca, 0.0050-0.0500 pcnt of N, 0.0050 pcnt or less of O, less than 0.0050 pcnt of Ti, and less than 0.0050 pcnt of Nb, the balance being Fe and unavoidable impurities; and a structure having austenite as a matrix phase; the austenite having a grain size of 1 æm or greater and a standard deviation of 9 æm or less.

4. 发明专利

PH12019501995B1 HIGH-Mn STEEL AND PRODUCTION METHOD THEREFOR 未知
公开(公告)号：PH12019501995B1
公开(公告)日：2020-06-01
申请号：PH12019501995
申请日：2019-08-30
申请人： JFE STEEL CORP
发明人： ARAO RYO , IZUMI DAICHI , UEDA KEIJI , HASE KAZUKUNI
IPC分类号： C21D8/02 , C22C38/00 , C22C38/38 , C22C38/58
摘要： Provided is a method of further imparting excellent ductility to high-Mn steel exhibiting excellent low-temperature toughness in a base metal and a heat-affected zone after welding. The high-Mn steel has a chemical composition containing, in mass pcnt , C: 0.10 pcnt to 0.70 pcnt , Si: 0.05 pcnt to 1.0 pcnt , Mn: 15 pcnt to 30 pcnt , P: 0.030 pcnt or less, S: 0.0070 pcnt or less, Al: 0.01 pcnt to 0.07 pcnt , Cr: 0.5 pcnt to 7.0 pcnt , N: 0.0050 pcnt to 0.0500 pcnt , O: 0.0050 pcnt or less, Ti: less than 0.005 pcnt , and Nb: less than 0.005 pcnt , with the balance being Fe and inevitable impurities, has a microstructure containing austenite as a matrix phase, and, in the microstructure, nonmetallic inclusions with an area fraction of less than 5.0 pcnt , and exhibits a yield stress of 400 MPa or more and an absorbed energy (vE-196) of 100 J or more.

5. 发明专利

MY192536A HIGH-MN STEEL AND METHOD FOR MANUFACTURING SAME 未知
公开(公告)号：MY192536A
公开(公告)日：2022-08-26
申请号：MYPI2020002748
申请日：2018-12-06
申请人： JFE STEEL CORP
发明人： NAKASHIMA KOICHI , UEDA KEIJI , KITSUYA SHIGEKI , ARAO RYO , IZUMI DAICHI , IGI SATOSHI , ONO TOMOHIRO
IPC分类号： C22C38/00 , C21D8/02 , C22C38/58
摘要： Provided is a high-Mn steel which not only has high strength and excellent low-temperature toughness but also has excellent CTOD property at low temperatures. The high-Mn steel has a chemical composition containing, in mass %, C: 0.10 % or more and 0.70 % or less, Si: 0.05 % or more and 0.50 % or less, Mn: 20 % or more and 30 % or less, P: 0.030 % or less, S: 0.0070 % or less, Al: 0.01 % or more and 0.07 % or less, Cr: 0.5 % or more and 7.0 % or less, Ni: 0.01 % or more and less than 0.1 % , Ca: 0.0005 % or more and 0.0050 % or less, N: 0.0050 % or more and 0.0500 % or less, O: 0.0050 % or less, Ti: less than 0.0050 % , and Nb: less than 0.0050 %, the balance consisting of Fe and inevitable impurities, and a microstructure having austenite as a base phase, where the austenite has a grain size of 1 ?m or more and a standard deviation of 9 ?m or less.

6. 发明专利

SG11202005101PA HIGH-MN STEEL AND METHOD FOR MANUFACTURING SAME 未知
公开(公告)号：SG11202005101PA
公开(公告)日：2020-06-29
申请号：SG11202005101P
申请日：2018-12-06
申请人： JFE STEEL CORP
发明人： NAKASHIMA KOICHI , UEDA KEIJI , KITSUYA SHIGEKI , ARAO RYO , IZUMI DAICHI , IGI SATOSHI , ONO TOMOHIRO
IPC分类号： C22C38/00 , C21D8/02 , C22C38/58
摘要： Provided is a high-Mn steel which not only has high strength and excellent low-temperature toughness but also has excellent CTOD property at low temperatures. The high-Mn steel has a chemical composition containing, in mass%, C: 0.10 % or more and 0.70 % or less, Si: 0.05 % or more and 0.50 % or less, Mn: 20 % or more and 30 % or less, P: 0.030 % or less, S: 0.0070 % or less, Al: 0.01 % or more and 0.07 % or less, Cr: 0.5 % or more and 7.0 % or less, Ni: 0.01 % or more and less than 0.1 %, Ca: 0.0005 % or more and 0.0050 % or less, N: 0.0050 % or more and 0.0500 % or less, O: 0.0050 % or less, Ti: less than 0.0050 %, and Nb: less than 0.0050 %, the balance consisting of Fe and inevitable impurities, and a microstructure having austenite as a base phase, where the austenite has a grain size of 1 µm or more and a standard deviation of 9 µm or less.

7. 发明专利

PH12019501995A1 HIGH-MN STEEL AND PRODUCTION METHOD THEREFOR 未知
公开(公告)号：PH12019501995A1
公开(公告)日：2020-06-01
申请号：PH12019501995
申请日：2019-08-30
申请人： JFE STEEL CORP
发明人： ARAO RYO , IZUMI DAICHI , UEDA KEIJI , HASE KAZUKUNI
IPC分类号： C21D8/02 , C22C38/00 , C22C38/38 , C22C38/58
摘要： The present invention proposes a method for imparting better ductility to high-Mn steel that has superior cryogenic toughness in both a welding heat-affected part and a matrix after being welded. This high-Mn steel has a component composition comprising, in mass pcnt , 0.30-0.90 pcnt of C, 0.05-1.0 pcnt of Si, 15-30 pcnt of Mn, not more than 0.030 pcnt of P, not more than 0.0070 pcnt of S, 0.01-0.07 pcnt of Al, 0.5-7.0 pcnt of Cr, 0.0050-0.0500 pcnt of N, not more than 0.0050 pcnt of O, the respective contained amounts of Ti and Nb being at suppressed levels of less than 0.005 pcnt , with the remaining portion being Fe and unavoidable impurities, wherein the high-Mn steel has a microstructure including austenite as a matrix phase, the area fraction of non-metal inclusion in the microstructure is less than 5.0 pcnt , and the high-Mn steel has a yield strength of at least 400 MPa and an absorption energy (vE-196) of at least 100 J.

8. 发明专利

SG11201907930QA HIGH-Mn STEEL AND PRODUCTION METHOD THEREFOR 未知
公开(公告)号：SG11201907930QA
公开(公告)日：2019-09-27
申请号：SG11201907930Q
申请日：2018-04-25
申请人： JFE STEEL CORP
发明人： ARAO RYO , IZUMI DAICHI , UEDA KEIJI , HASE KAZUKUNI
IPC分类号： C22C38/00 , C21D8/02 , C22C38/38 , C22C38/58
摘要： HIGH-Mn STEEL AND PRODUCTION METHOD THEREFOR Provided is a method of further imparting excellent ductility to 5 high-Mn steel exhibiting excellent low-temperature toughness in a base metal and a heat-affected zone after welding. The high-Mn steel has a chemical composition containing, in mass%, C: 0.10 % to 0.70 %, Si: 0.05 % to 1.0 %, Mn: 15 % to 30 %, P: 0.030 % or less, S: 0.0070 % or less, Al: 0.01 % to 0.07 %, Cr: 0.5 % to 7.0 %, N: 0.0050 % to 0.0500 %, O: 0.0050 % or less, Ti: less 10 than 0.005 %, and Nb: less than 0.005 %, with the balance being Fe and inevitable impurities, has a microstructure containing austenite as a matrix phase, and, in the microstructure, nonmetallic inclusions with an area fraction of less than 5.0 %, and exhibits a yield stress of 400 MPa or more and an absorbed energy (vE -196 ) of 100 J or more. 15

9. 发明专利

JP2015040328A 大入熱溶接特性と材質均質性に優れた厚鋼板およびその製造方法有权
标题翻译：高输入焊接特性和材料均匀性优良的钢板及其制造方法
公开(公告)号：JP2015040328A
公开(公告)日：2015-03-02
申请号：JP2013171932
申请日：2013-08-22
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： MURAKAMI YOSHIAKI , HASE KAZUKUNI , ARAO RYO , ENDO SHIGERU
IPC分类号： C22C38/00 , C21D8/02 , C22C38/14 , C22C38/58
CPC分类号： C22C38/58 , C21D8/0226 , C21D8/0263 , C21D2211/002 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/42 , C22C38/48 , C22C38/50 , C22C38/54
摘要：【課題】大入熱溶接特性と鋼板内の材質均質性に優れた厚鋼板およびその製造方法を提供する。【解決手段】質量%で、C:0.030〜0.080%、Si:0.01〜0.10%、Mn:1.20〜2.40%、P:0.008%以下、S:0.0005〜0.0040%、Al:0.005〜0.080%、Nb:0.003〜0.040%、Ti:0.003〜0.040%、N:0.0030〜0.0100%、B:0.0003〜0.0030%、更に、必要に応じて、Cu、Ni、Cr、Mo、V、Ca、Zr、REMの1種または2種以上、残部がFeおよび不可避的不純物からなる成分組成を有し、かつ、板厚方向と板幅方向のそれぞれでのビッカース硬さ(HV)の変動幅:&Dgr;HVが30以下である厚鋼板。上記成分組成の鋼素材を1000〜1300℃の温度に加熱した後、熱間圧延し、引き続く加速冷却の直前に鋼板表面での噴射流の衝突圧が1MPa以上の条件でデスケーリングを行い、その後、加速冷却を行う製造方法。【選択図】なし
摘要翻译：要解决的问题：提供一种钢板的高热输入焊接特性和材料均匀性优异的钢板及其制造方法。解决方案：钢板具有以质量％计含有C： 0.030-0.080％，Si：0.01-0.10％，Mn：1.20-2.40％，P：0.008％以下，S：0.0005〜0.0040％，Al：0.005-0.080％，Nb：0.003-0.040％，Ti：0.003 -0.040％，N：0.0030-0.0100％，B：0.0003-0.0030％，如果需要，可以使用Cu，Ni，Cr，Mo，V，Ca，Zr和REM中的一种或两种以上，其余为Fe和不可避免的杂质。在钢板中，板厚方向和板宽方向上的维氏硬度（HV）的变化范围＆Dgr; HV为30以下。制造钢板的方法包括：在1000-1300℃的温度下加热具有上述成分组成的钢材; 然后热轧，然后加速冷却; 在加速冷却之前，钢板表面上的喷流的碰撞压力为1MPa以上的条件下进行除垢，并执行加速冷却。

10. 发明专利

JP2014031544A Steel material for large heat input welding 有权
标题翻译：用于大型热输入焊接的钢材
公开(公告)号：JP2014031544A
公开(公告)日：2014-02-20
申请号：JP2012172494
申请日：2012-08-03
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ARAO RYO , MURAKAMI YOSHIAKI , HASE KAZUKUNI , ENDO SHIGERU
IPC分类号： C22C38/00 , C21D8/02 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel material having excellent weld zone toughness and joint strength at a welding heat input amount of more than 300 kJ/cm, and having a yield strength of 460 MPa or more.SOLUTION: The steel material contains C:0.03 to 0.08%, Si:0.01 to 0.15%, Mn:1.80 to 2.40%, P:0.015% or less, S:0.0005 to 0.0040%, Al:0.005 to 0.100%, Nb:0.003 to 0.030%, Ti:0.005 to 0.050%, N:0.0050 to 0.0160%, B:0.0003 to 0.0025%, and if required at least one kind of V, Cu, Ni, Cr, Mo, Ca, Mg, Zr and REM, having a Ti/N ratio of 2.0 or more and less than 4.0 and an A value of 10 to 25, the balance Fe with inevitable impurities. The steel material also has a yield stress of 460 MPa or more, and the softest portion of a heat- affected zone of the steel material has a hardness of 160 or more in HV10 at a welding heat input amount of more than 300 kJ/cm. A=2256×Ti-7716×N+10000×B, where chemical elements are contents (mass%).
摘要翻译：要解决的问题：提供一种在焊接热输入量大于300kJ / cm，具有460MPa以上的屈服强度的焊接区韧性和接合强度优异的钢材。解决方案：钢材含有C ：0.03〜0.08％，Si：0.01〜0.15％，Mn：1.80〜2.40％，P：0.015％以下，S：0.0005〜0.0040％，Al：0.005〜0.100％，Nb：0.003〜0.030％ 0.005〜0.050％，N：0.0050〜0.0160％，B：0.0003〜0.0025％，如果需要，具有Ti / N的V，Cu，Ni，Cr，Mo，Ca，Mg，Zr和REM中的至少一种 2.0以上且小于4.0，A值为10〜25，余量为Fe与不可避免的杂质。钢材的屈服应力也为460MPa以上，焊接热输入量大于300kJ / cm时，HV10中钢材的热影响区域的最软部分的硬度为160以上。 A = 2256×Ti-7716×N + 10000×B，化学成分为含量（质量％）。

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