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1. 发明专利

JP2014162948A Ferritic stainless steel less in rust formation 有权
标题翻译：不锈钢不锈钢不锈钢
公开(公告)号：JP2014162948A
公开(公告)日：2014-09-08
申请号：JP2013034547
申请日：2013-02-25
申请人： Nippon Steel & Sumikin Stainless Steel Corp , 新日鐵住金ステンレス株式会社
发明人： FUKUMOTO SHIGEO , ISHIMARU EIICHIRO
IPC分类号： C22C38/00 , C21C7/04 , C21C7/06 , C22C38/40 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a ferritic stainless steel sheet less in rust formation, capable of suppressing generation of a water soluble sulfide based nonmetallic inclusion, such as CaS, forming a starting point of the rust formation.SOLUTION: The ferritic stainless steel has a [S] concentration of 0.0002 to 0.0030%, a [Al] concentration of 0.004-0.020%, a [Ca] concentration of 0.0020% or less and T.[O] concentration of 0.007% or less in the steel and satisfies a formula {[Ca]×[S]×10≤2.68-0.563×[Al]/T.[O]}. The number of inclusions having a grain size of 5 μm or more is one/mmor less.
摘要翻译：要解决的问题：为了提供一种较少生锈的铁素体不锈钢板，能够抑制产生诸如CaS的水溶性硫化物非金属夹杂物的产生，形成锈迹的起点。解决方案：铁素体不锈钢具有 [S]浓度为0.0002〜0.0030％，[Al]浓度为0.004〜0.020％，[Ca]浓度为0.0020％以下，T. [O]浓度为0.007％以下，满足a 公式{[Ca]×[S]×10≤2.68-0.563×[Al] / T。[O]}。粒径为5μm以上的夹杂物的数量为1个/ mm以下。

2. 发明专利

JP2009001844A Nonmagnetic free-cutting stainless steel having high hardness 有权
标题翻译：具有高硬度的非磁性自由切削不锈钢
公开(公告)号：JP2009001844A
公开(公告)日：2009-01-08
申请号：JP2007162647
申请日：2007-06-20
申请人： Nippon Steel & Sumikin Stainless Steel Corp , 新日鐵住金ステンレス株式会社
发明人： HIKASA HIRONARI , TAKANO KOJI , FUKUMOTO SHIGEO , TSUGE SHINJI , TANAKA KISUKE
IPC分类号： C22C38/00 , C21D8/06 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a nonmagnetic free-cutting stainless steel having high hardness, which is nonmagnetic even after cold working and requiring machining.
SOLUTION: The nonmagnetic free-cutting stainless steel having high hardness is composed of a steel comprising, by mass, 0.030 to 0.150% C, ≤1.00% Si, 5.00 to 16.00% Mn, ≤0.050% P, 0.05 to 0.40% S, 1.00 to 8.00% Ni, 16.00 to 22.00% Cr, 0.10 to 0.50% N, 0.005 to 0.015% O, 0.001 to 0.010% Ca, 0.002 to 0.010% Al and 0.001 to 0.010% B, and the balance Fe with inevitable impurities, and has a Vickers hardness (Hv) of ≥400.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有高硬度的非磁性切削不锈钢，即使在冷加工和需要加工之后也是非磁性的。解决方案：具有高硬度的非磁性自由切削不锈钢由含有0.030至0.150％C，≤1.00％Si，5.00至16.00％Mn，≤0.050％P，0.05至0.40质量％的钢组成％S，1.00〜8.00％Ni，16.00〜22.00％Cr，0.10〜0.50％N，0.005〜0.015％O，0.001〜0.010％Ca，0.002〜0.010％Al和0.001〜0.010％B，余量为Fe 不可避免的杂质，维氏硬度（Hv）≥400。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2005133144A Austenitic stainless steel having excellent hot workability and corrosion resistance 审中-公开
标题翻译：具有优异耐热性和耐腐蚀性的奥氏体不锈钢
公开(公告)号：JP2005133144A
公开(公告)日：2005-05-26
申请号：JP2003370148
申请日：2003-10-30
申请人： Nippon Steel & Sumikin Stainless Steel Corp , 新日鐵住金ステンレス株式会社
发明人： FUKUMOTO SHIGEO , FUKUDA YOSHIMORI , MOTOMURA HIROSHI
IPC分类号： C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide an austenitic stainless steel having an excellent corrosion without causing cracks at the time of hot rolling.
SOLUTION: The austenitic stainless steel in which the formation of bubbles is prevented, and having excellent hot workability and corrosion resistance is obtained by using stainless steel comprising, by mass, 0.01 to 0.04% C, 0.2 to 1.0% Si, 0.5 to 4.0% Mn, ≤0.04% P, ≤0.002% S, 10.0 to 20.0% Ni, 17.0 to 25.0% Cr, 3.0 to 7.0% Mo, 0.2 to 3.0% Cu, 0.1 to 0.4% N, ≤0.05% Al, ≤0.006% O, 0.0005 to 0.005% Ca, and the balance Fe with inevitable impurities as a fundamental composition, and finely controlling the components.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异腐蚀性的奥氏体不锈钢，而不会在热轧时产生裂纹。解决方案：通过使用不锈钢，通过使用不锈钢，其中，其中防止形成气泡并且具有优异的热加工性和耐腐蚀性的奥氏体不锈钢通过使用不锈钢，其包含质量为0.01至0.04％的C，0.2至1.0％的Si，0.5 至4.0％Mn，≤0.04％P，≤0.002％S，10.0〜20.0％Ni，17.0〜25.0％Cr，3.0〜7.0％Mo，0.2〜3.0％Cu，0.1〜0.4％N，≤0.05％Al， ≤0.006％O，0.0005〜0.005％Ca，余量为Fe与不可避免的杂质为基本组成，并精细地控制组分。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2010270356A Stainless steel thick plate having excellent surface property 有权
标题翻译：不锈钢厚板，具有卓越的表面性能
公开(公告)号：JP2010270356A
公开(公告)日：2010-12-02
申请号：JP2009121222
申请日：2009-05-19
申请人： Nippon Steel & Sumikin Stainless Steel Corp , 新日鐵住金ステンレス株式会社
发明人： FUKUMOTO SHIGEO , FUKUDA YOSHIMORI , MOTOMURA HIROSHI , YAMAMOTO YOICHI
IPC分类号： C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide an austenitic stainless steel which has excellent surface properties without generating surface flaws upon hot rolling. SOLUTION: The austenitic stainless steel thick plate having excellent surface properties has a composition comprising, by mass, 0.005 to 0.07% C, ≤0.8% Si, 0.5 to 4.0% Mn, ≤0.04% P, ≤0.008% S, 16 to 19% Cr, ≤13% Ni, ≤0.05% Al, ≤0.08% N and the balance Fe with inevitable impurities, wherein δ-Fe calculated value prescribed by expression (1) satisfies 0.5 to 7.0, and δ-Fe measured value in the plate surface after thick plate rolling is 0.1 to 0.7: δ-Fe calculated value=2.9×([Cr]+0.3[Si]+[Mo]+0.7[Nb])-2.6×([Ni]+0.3[Mn]+0.25[Cu]+35[C]+20[N])-18 (1). COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种奥氏体不锈钢，其具有优异的表面性能，而不会在热轧时产生表面缺陷。解决方案：具有优异表面性质的奥氏体不锈钢厚板具有质量0.005〜0.07％C，≤0.8％Si，0.5〜4.0％Mn，≤0.04％P，≤0.008％S， 16〜19％的Cr，≤13％的Ni，≤0.05％的Al，≤0.08％的N，余量为不可避免的杂质，其中由式（1）规定的δ-Fe计算值为0.5〜7.0，δ-Fe为厚板轧制后的板面的值为0.1〜0.7：δ-Fe计算值= 2.9×（[Cr] +0.3 [Si] + [Mo] +0.7 [Nb]）-2.6×（[Ni] +0.3 [Mn] +0.25 [Cu] +35 [C] +20 [N]）-18（1）。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2010059541A Ferritic-austenitic stainless steel having excellent ingot crack resistance and workability, and method for producing the same 有权
标题翻译：具有优异的耐起裂性和耐磨性的铁素体不锈钢及其制造方法
公开(公告)号：JP2010059541A
公开(公告)日：2010-03-18
申请号：JP2009179055
申请日：2009-07-31
申请人： Nippon Steel & Sumikin Stainless Steel Corp , 新日鐵住金ステンレス株式会社
发明人： ISHIMARU EIICHIRO , TAKAHASHI AKIHIKO , FUKUMOTO SHIGEO , HATANO MASAHARU , KIMURA KEN
IPC分类号： C22C38/00 , B21B3/02 , C21D6/00 , C21D9/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a ferritic-austenitic stainless steel having excellent ingot crack resistance and workability with which cracks in the surface of an ingot is solved by regulating the composition of the steel and performing controlled cooling in a solidification-cooling process, and further, the cold rolled steel sheet to be obtained has workability, and to provide a method for producing the same.
SOLUTION: The ferritic-austenitic stainless steel having excellent ingot crack resistance and workability has a composition comprising, by mass, ≤0.10% C, ≤2.0% Si, ≤4.0% Mn,
摘要翻译：要解决的问题：提供一种具有优异的耐锭裂纹性和可加工性的铁素体 - 奥氏体不锈钢，通过调节钢的组成并在固化冷却中进行控制冷却来解决铸块表面的裂纹而且，所得到的冷轧钢板具有可加工性，并提供其制造方法。解决方案：具有优异的耐晶锭裂纹性和可加工性的铁素体 - 奥氏体不锈钢具有质量≤0.10％，Si≤2.0％，Mn≤4.0％，P <0.010％S ，17〜25％的Cr，0.6〜5.0％的Ni和0.01〜<0.15％的N，余量为铁与不可避免的杂质，其中DF值控制在≤70。钢的制造方法的特征在于，通过连续铸造将铸锭冷却时在1100〜900℃范围内的总时间控制为≥40分钟，以控制常温下的铁素体相的比例 35至70％。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2006241590A Austenitic stainless steel hot rolled steel having satisfactory corrosion resistance, proof stress and low temperature toughness and its production method 有权
标题翻译：具有耐腐蚀性，耐腐蚀性和低温韧性的奥氏体不锈钢热轧钢及其生产方法
公开(公告)号：JP2006241590A
公开(公告)日：2006-09-14
申请号：JP2006012569
申请日：2006-01-20
申请人： Nippon Steel & Sumikin Stainless Steel Corp , 新日鐵住金ステンレス株式会社
发明人： OIKAWA YUSUKE , TSUGE SHINJI , FUKUMOTO SHIGEO , SUETSUGU KAZUHIRO , MATSUHASHI AKIRA , INOUE HIROSHIGE
IPC分类号： C22C38/00 , B21B1/38 , B21B3/02 , C21D8/02 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide an austenitic stainless steel hot rolled steel having more satisfactory seawater resistance and higher strength than those of the conventional steel while securing low temperature toughness required for a structural member, i.e., whose three characteristics of corrosion resistance, proof stress and low temperature toughness are all satisfactory.
SOLUTION: The austenitic stainless steel hot rolled steel satisfies the relations of PI=Cr+3.3(Mo+0.5W)+16N is 35 to 40, and δcal=2.9(Cr+0.3Si+Mo+0.5W)-2.6(Ni+0.3Mn+0.25Cu+32C+20N)-18 is -6 to +2, and has the characteristics that 0.2% proof stress at room temperature is ≥550MPa, Charpy impact value by a V notch test piece at -40°C is ≥100 J/cm
2 , and a pitting potential (Vc'100) measured in a deaerated 10% NaCl aqueous solution heated at 50°C is ≥500 mV (Vs saturated Ag/AgCl).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有比常规钢具有更好的耐海水性和更高强度的奥氏体不锈钢热轧钢，同时确保结构构件所要求的低温韧性，即其耐腐蚀性的三个特性，耐应力和低温韧性都令人满意。＆lt; P＆gt;解决方案：奥氏体不锈钢热轧钢满足PI = Cr + 3.3（Mo + 0.5W）+ 16N为35〜40，δcal= 2.9（Cr + 0.3Si + Mo + 0.5W）〜 2.6（Ni + 0.3Mn + 0.25Cu + 32C + 20N）-18为-6〜+2，具有室温下0.2％屈服应力≥550MPa的特征， 40℃为≥100J/ cm 2，在50℃加热脱气的10％NaCl水溶液中测定的点蚀电位（Vc'100）为≥500mV（Vs饱和Ag / AgCl电极）。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2014028997A Austenitic s-containing free-cutting stainless steel 有权
标题翻译：含奥氏体含S的自由切削不锈钢
公开(公告)号：JP2014028997A
公开(公告)日：2014-02-13
申请号：JP2012170163
申请日：2012-07-31
申请人： Nippon Steel & Sumikin Stainless Steel Corp , 新日鐵住金ステンレス株式会社
发明人： FUKUMOTO SHIGEO , HIKASA HIRONARI
IPC分类号： C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide an austenitic S-containing free-cutting stainless steel having no crack at hot-rolling and excellent in corrosion resistance and machinability.SOLUTION: An austenitic S-containing free-cutting stainless steel contains, by mass%, C:0.01 to 0.10%, Si:0.2 to 1.0%, Mn:0.5 to 4.0%, S:0.25 to 0.40%, P:0.02 to 0.05%, Cr:17.0 to 20.0%, Ni:7.0 to 10.0%, Mo:0.05 to 3.0%, N:0.01 to 0.08%, REM:0.0010 to 0.010%, Al:0.005% or less, O:0.007 to 0.020%, if required one or two of Cu:0.2 to 3.5% and B:0.001 to 0.01%, and the balance of Fe with inevitable impurities and has δFe defined by expression of 0.5 to 3.5. δFe=2.9(Cr+Mo+0.3Si)-2.6(Ni+0.3Mn+0.25Cu+35C+20 N)-18, where chemical elements are contents of the chemical elements in the steel (mass%).
摘要翻译：要解决的问题：提供一种在热轧时没有裂纹的奥氏体含S的自由切削不锈钢，并且具有优异的耐腐蚀性和可加工性。解决方案：奥氏体含S的自由切削不锈钢以质量％计含有 C：0.01〜0.10％，Si：0.2〜1.0％，Mn：0.5〜4.0％，S：0.25〜0.40％，P：0.02〜0.05％，Cr：17.0〜20.0％，Ni：7.0〜：0.05〜3.0％，N：0.01〜0.08％，REM：0.0010〜0.010％，Al：0.005％以下，O：0.007〜0.020％，如果需要，一个或两个Cu：0.2〜3.5％，B：0.001 至0.01％，余量为不可避免的杂质，并具有通过0.5〜3.5表示的δFe。 δFe= 2.9（Cr + Mo + 0.3Si）-2.6（Ni + 0.3Mn + 0.25Cu + 35C + 20N）-18，其中化学元素是钢中化学元素的含量（质量％）。

8. 发明专利

JP2013204044A Duplex stainless steel with high weldability 有权
标题翻译：具有高焊接性能的双相不锈钢
公开(公告)号：JP2013204044A
公开(公告)日：2013-10-07
申请号：JP2012070876
申请日：2012-03-27
申请人： Nippon Steel & Sumikin Stainless Steel Corp , 新日鐵住金ステンレス株式会社
发明人： IWASAKI YUJI , FUKUMOTO SHIGEO
IPC分类号： C22C38/00 , C21D8/02 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a duplex stainless steel which does not delay precipitation of a γ phase under a wide welding condition and which has high corrosion resistance and high toughness in its welding portion.SOLUTION: A duplex stainless steel with high weldability includes major components of, by mass percentage, C: ≤0.10%, Si: ≤2.0%, Mn: 0.1-7.0%, P: ≤0.04%, S: ≤0.002%, Cr: 20-30%, Ni: ≤7.5%, Mo: ≤4%, Al: 0.005-0.05%, N: 0.1-0.35%, Ti: 0.003-0.020%, Ce: 0.001-0.010%, wherein a DF value represented by the following formula is 30-70. DF value=7.2×([Cr]+0.88[Mo]+0.78[Si]+2.2[Ti]+2.3[V])-8.9×([Ni]+0.03[Mn]+0.72[Cu]+22[C]+21[N]).
摘要翻译：要解决的问题：提供一种双相不锈钢，其不会在宽焊接条件下延迟γ相沉淀，并且在其焊接部分具有高耐腐蚀性和高韧性。解决方案：具有高可焊性的双相不锈钢包括主要以质量％计，C：≤0.10％，Si：≤2.0％，Mn：0.1-7.0％，P：≤0.04％，S：≤0.002％，Cr：20-30％，Ni：≤7.5％，Mo：≤4％，Al：0.005-0.05％，N：0.1-0.35％，Ti：0.003-0.020％，Ce：0.001-0.010％，其中由下式表示的DF值为30-70。 DF值= 7.2×（[Cr] +0.88 [Mo] +0.78 [Si] +2.2 [Ti] +2.3 [V]） - 8.9×（[Ni] +0.03 [Mn] +0.72 [Cu] C] +21 [N]）。

9. 发明专利

JP2013014799A Austenitic s containing free-cutting stainless steel 有权
标题翻译：含奥氏体不锈钢自由切削不锈钢
公开(公告)号：JP2013014799A
公开(公告)日：2013-01-24
申请号：JP2011147526
申请日：2011-07-01
申请人： Nippon Steel & Sumikin Stainless Steel Corp , 新日鐵住金ステンレス株式会社
发明人： FUKUMOTO SHIGEO , HIKASA HIRONARI
IPC分类号： C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide austenitic S containing free-cutting stainless steel which does not cause a crack during hot rolling and which is excellent in corrosion resistance and machinability.SOLUTION: The austenitic S containing free-cutting stainless steel includes, by the mass percentage, C: 0.01-0.10%, Si: 0.2-1.0%, Mn: 0.5-4.0%, S: 0.25-0.40%, P: 0.02-0.05%, Cr: 17.0-20.0%, Ni: 7.0-10.0%, Mo: 0.05-3.0%, N: 0.01-0.08%, Ca: 0.0010-0.0080%, Al: 0.005% or less, O: 0.007-0.020%, and, as needed, one or both of Cu: 0.2-3.5% and B: 0.001-0.01%, with the balance being Fe and inevitable impurities, wherein δFe defined by the following formula is 0.5-3.5. δFe=2.9(Cr+Mo+0.3Si)-2.6(Ni+0.3Mn+0.25Cu+35C+20N)-18, where each chemical symbol represents its content in the steel (mass percentage).
摘要翻译：要解决的问题：提供在热轧期间不引起裂纹并且耐腐蚀性和机械加工性优异的奥氏体S含有自由切削不锈钢。解决方案：含奥氏体S的自由切削不锈钢的质量百分比包括C：0.01-0.10％，Si：0.2-1.0％，Mn：0.5-4.0％，S：0.25-0.40％，P ：0.02-0.05％，Cr：17.0-20.0％，Ni：7.0-10.0％，Mo：0.05-3.0％，N：0.01-0.08％，Ca：0.0010-0.0080％，Al：0.005％ 0.007-0.020％，根据需要，Cu：0.2〜3.5％和B：0.001-0.01％中的一种或两种，余量为Fe和不可避免的杂质，其中由下式定义的δFe为0.5-3.5。 δFe= 2.9（Cr + Mo + 0.3Si）-2.6（Ni + 0.3Mn + 0.25Cu + 35C + 20N）-18，其中每个化学符号表示其在钢中的含量（质量百分比）。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2006315080A Austenitic stainless steel welding structure having excellent low temperature toughness and seawater corrosion resistance 有权
标题翻译：具有优异的低温韧性和海水腐蚀电阻的奥氏体不锈钢焊接结构
公开(公告)号：JP2006315080A
公开(公告)日：2006-11-24
申请号：JP2005294585
申请日：2005-10-07
申请人： Nippon Steel & Sumikin Stainless Steel Corp , 新日鐵住金ステンレス株式会社
发明人： INOUE HIROSHIGE , MIZUMOTO MANABU , OIKAWA YUSUKE , TSUGE SHINJI , FUKUMOTO SHIGEO
IPC分类号： B23K35/30 , B23K9/167 , B23K9/173 , B23K9/23 , B23K103/04 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide an austenitic stainless steel welding structure having a weld zone of high quality in which low temperature toughness is improved and pitting corrosion in a seawater corrosion environment is evaded.
SOLUTION: The austenitic stainless steel welding structure having excellent low temperature toughness and seawater corrosion resistance is composed of an austenitic stainless steel base metal having a composition containing prescribed amounts of C, Si, Mn, Ni, Cr, Mo, N and Al, and in which O, P and S are limited, and further containing prescribed amounts of one or more selected from Cu, Ti, Nb, V and W, and having a PIW value as an index of corrosion resistance within a range of from 35 to 40 and a δcal value as an index of a ferrite content within a range between -6 and +4, and a weld metal formed at a weld zone and having a composition containing prescribed amounts of C, Si, Mn, Ni, Cr, Mo, Cu, N and Al, and in which O, P and S are limited, and having a ratio of a Cr equivalent to Ni equivalent (Cr equivalent/Ni equivalent) within a range of from 0.85 to 1.2 and a PI value as an index of pitting corrosion resistance of 35 or more.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种奥氏体不锈钢焊接结构，其具有高质量的焊接区域，其中提高了低温韧性并避免了海水腐蚀环境中的点腐蚀。解决方案：具有优异的低温韧性和耐海水腐蚀性的奥氏体不锈钢焊接结构由具有规定量的C，Si，Mn，Ni，Cr，Mo，N的组成的奥氏体不锈钢母材组成， Al，其中O，P和S被限制，并且还含有规定量的选自Cu，Ti，Nb，V和W中的一种或多种，并且具有PIW值作为耐腐蚀性指数在 35〜40，δcal值作为铁素体含量在-6和+4之间的范围内的指标，以及在焊接区形成的具有规定量的C，Si，Mn，Ni，Cr ，Mo，Cu，N和Al，并且其中O，P和S被限制，并且Cr当量相当于Ni当量（Cr当量/ Ni当量）在0.85至1.2的范围内，并且PI值作为点腐蚀性的指标为35以上。版权所有（C）2007，JPO＆INPIT

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