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11. 发明授权

US09365914B2 Duplex stainless steel superior in corrosion resistance of weld 有权
标题翻译：双相不锈钢焊接耐腐蚀性优异
公开(公告)号：US09365914B2
公开(公告)日：2016-06-14
申请号：US14004039
申请日：2012-03-09
申请人： Yusuke Oikawa , Shinji Tsuge , Hiroshige Inoue , Ryo Matsuhashi
发明人： Yusuke Oikawa , Shinji Tsuge , Hiroshige Inoue , Ryo Matsuhashi
IPC分类号： C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/58 , C22C38/00 , C21D6/00 , C22C38/02 , C22C38/06 , C22C38/50 , C22C38/52 , C22C38/54 , C21D8/02 , B23K35/30 , B23K35/02
CPC分类号： C22C38/005 , B23K35/0261 , B23K35/3053 , B23K35/308 , C21D6/004 , C21D8/0226 , C21D8/0263 , C21D2211/001 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/008 , C22C38/02 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/58
摘要： A nitrogen-rich two-phase stainless steel that has corrosion resistance equal to that of standard type of two-phase stainless steel and is not susceptible to corrosion in a welding heat-affected part, wherein the austenite phase area ratio is 40-70%, the PI value expressed by formula (1) is 30-38, the NI value expressed by formula (2) is 100-140, and the γpre expressed by formula (3) is 1350-1450. (1) PI=Cr+3.3Mo+16N (2) NI=(Cr+Mo)/N.
摘要翻译：具有与标准型两相不锈钢相同的耐腐蚀性并且在焊接热影响部分不易腐蚀的富氮两相不锈钢，其中奥氏体相面积比为40-70％，式（1）表示的PI值为30-38，式（2）表示的NI值为100〜140，式（3）表示的γpre为1350〜1450。（1）PI = Cr + 3.3Mo + 16N（2）NI =（Cr + Mo）/ N。

12. 发明申请

US20160017451A1 FERRITIC STAINLESS STEEL SHEET EXHIBITING SMALL INCREASE IN STRENGTH AFTER AGING HEAT TREATMENT, AND METHOD OF PRODUCING THE SAME 审中-公开
标题翻译：老化热处理后的强度不均匀的钢铁不锈钢板及其生产方法
公开(公告)号：US20160017451A1
公开(公告)日：2016-01-21
申请号：US14773988
申请日：2014-03-14
申请人： NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
发明人： Ken KIMURA , Junichi HAMADA , Eiichiro ISHIMARU , Akihito YAMAGISHI , Naoto HANSAKI
IPC分类号： C21D8/00 , C22C38/58 , C22C38/54 , C22C38/50 , C22C38/48 , C22C38/46 , C22C38/44 , C22C38/42 , C22C38/34 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/24 , C22C38/22 , C22C38/20 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C21D8/02 , C22C38/60
摘要： A ferritic stainless steel sheet exhibiting small increase in strength after aging heat treatment in the present invention contains, by mass %, C: 0.020% or less, Cr: 10.0% to 25.0%, N: 0.020% or less, Sn: 0.010% to 0.50%, and one or more of Ti: 0.60% or less, Nb: 0.60% or less, V: 0.60% or less, and Zr: 0.60% or less so as to satisfy the following Equation (1), in which the difference between stress σ1 (N/mm2) after prestrain imparting tensile deformation with 7.5% of strain, and upper yield stress σ2 (N/mm2) when the steel sheet is subjected to heat treatment at 200° C. for 30 minutes and then to tension again after the tensile deformation is 8 or less. (Ti/48+V/51+Zr/91+Nb/93)/(C/12+N/14)≧1.0 (1)
摘要翻译：本发明的时效热处理后的强度稍小的铁素体系不锈钢板以质量％计含有C：0.020％以下，Cr：10.0〜25.0％，N：0.020％以下，Sn：0.010％至0.50％，Ti：0.60％以下，Nb：0.60％以下，V：0.60％以下，Zr：0.60％以下的一种以上，满足下式（1），其中在钢板在200℃下进行热处理后，预应变赋予拉伸变形与应变的7.5％之间的应力σ1（N / mm2）与上屈服应力σ（2 / N / mm2）之间的差异 30分钟后拉伸变形8次以后再次拉伸。（Ti / 48 + V / 51 + Zr / 91 + Nb / 93）/（C / 12 + N / 14）≥1.0（1）

13. 发明授权

US09175361B2 Austenitic high Mn stainless steel and method production of same and member using that steel 有权
标题翻译：奥氏体高锰不锈钢和方法生产相同，成员使用该钢
公开(公告)号：US09175361B2
公开(公告)日：2015-11-03
申请号：US13824290
申请日：2011-09-29
申请人： Masaharu Hatano , Shigeo Fukumoto , Hideki Fujii , Shinichi Ohmiya
发明人： Masaharu Hatano , Shigeo Fukumoto , Hideki Fujii , Shinichi Ohmiya
IPC分类号： C21D8/10 , C22C38/42 , C22C38/44 , C22C38/58 , C21D8/02 , C21D6/00 , F16J12/00 , C22C38/00 , C22C38/02 , F16K51/00 , F16L9/02 , F17C1/00
CPC分类号： C21D8/105 , C21D6/004 , C21D6/005 , C21D2211/001 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/42 , C22C38/44 , C22C38/58 , F16J12/00 , F16K51/00 , F16L9/02 , F17C1/00
摘要： Inexpensive stainless steel and inexpensive and high strength stainless steel which has excellent hydrogen environment embrittlement resistance even if used in a hydrogen resistant environment in over 40 MPa high pressure hydrogen gas or a hydrogen resistant environment in liquid hydrogen, characterized by containing, by mass %, C: 0.1% or less, Si: 0.4 to 1.5%, Mn: 8 to 11%, Cr: 15 to 17%, Ni: 5 to 8%, Cu: 1 to 4%, and N: 0.01 to less than 0.15% and having a balance of Fe and unavoidable impurities, having a volume rate of δ-ferrite of 10% or less, and having a long axis of δ-ferrite before annealing of 0.04 to 0.1 mm.
摘要翻译：即使在超过40MPa的高压氢气或液氢中的耐氢环境的耐氢环境中使用时，也具有优异的氢环境脆性优异的廉价且高强度不锈钢，其特征在于，以质量％计， C：0.1％以下，Si：0.4〜1.5％，Mn：8〜11％，Cr：15〜17％，Ni：5〜8％，Cu：1〜4％，N：0.01〜％，并且具有δ-铁素体的体积率为10％以下的Fe和不可避免的杂质的平衡，退火前的δ-铁素体的长轴为0.04〜0.1mm。

14. 发明申请

US20150083283A1 HEAT-RESISTANT AUSTENITIC STAINLESS STEEL SHEET 有权
标题翻译：耐高温奥氏体不锈钢板
公开(公告)号：US20150083283A1
公开(公告)日：2015-03-26
申请号：US14387114
申请日：2013-03-28
申请人： NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
发明人： Yoshiharu Inoue , Fumio Fudanoki , Junichi Hamada
IPC分类号： C22C38/58 , C21D1/26 , C22C38/50 , C22C38/00 , C22C38/46 , C22C38/06 , C22C38/04 , C22C38/02 , C21D8/02 , C22C38/48
CPC分类号： C22C38/58 , C21D1/26 , C21D6/004 , C21D8/0236 , C21D8/0263 , C21D9/46 , C21D2211/001 , C21D2211/004 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54
摘要： The present invention is directed to a heat-resistant austenitic stainless steel sheet comprising, by mass %, C: 0.03% to 0.06%, N: 0.1% to 0.3%, Si: 1% or less Mn: 3% or less, P: 0.04% or less, S: 0.03% or less, Ni: 5 to 12%, Cr: 15 to 20%, Al: 0.01% to 0.1%, Nb: 0.05% to 0.3%, V: 0.05% to 0.30%, Ti: 0.03% or less, (Nb+V)/(C+N):2 or less and further a balance of Fe and unavoidable impurities, and wherein an amount of precipitates mainly comprised of carbonitrides is 1% or less.
摘要翻译：本发明涉及耐热奥氏体不锈钢板，以质量％计含有C：0.03％〜0.06％，N：0.1％〜0.3％，Si：1％以下Mn：3％以下，P ：0.04％以下，S：0.03％以下，Ni：5〜12％，Cr：15〜20％，Al：0.01〜0.1％，Nb：0.05〜0.3％，V：0.05〜0.30％，Ti：0.03％以下，（Nb + V）/（C + N）：2以下，余量由Fe和不可避免的杂质构成，其中主要由碳氮化物构成的析出物的量为1％以下。

15. 发明申请

US20150020933A1 HEAT-RESISTANT COLD ROLLED FERRITIC STAINLESS STEEL SHEET, HOT ROLLED FERRITIC STAINLESS STEEL SHEET FOR COLD ROLLING RAW MATERIAL, AND METHODS FOR PRODUCING SAME 审中-公开
标题翻译：耐热冷轧不锈钢不锈钢板，用于冷轧原材料的热轧不锈钢不锈钢板及其生产方法
公开(公告)号：US20150020933A1
公开(公告)日：2015-01-22
申请号：US14383434
申请日：2013-03-26
申请人： Nippon Steel & Sumikin Stainless Steel Corporation
发明人： Junichi Hamada , Yuji Koyama , Yoshiharu Inoue , Tadashi Komori , Fumio Fudanoki , Toshio Tanoue , Naoto Ono
IPC分类号： C21D8/02 , C22C38/54 , C22C38/52 , C22C38/50 , C22C38/48 , C22C38/44 , C22C38/42 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/22 , C22C38/20 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C21D9/46
CPC分类号： C22C38/54 , C21D6/002 , C21D7/02 , C21D7/13 , C21D8/0236 , C21D8/0263 , C21D9/46 , C21D2201/05 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/52
摘要： Provided is a heat-resistant cold rolled ferritic stainless steel sheet containing, in terms of mass %, 0.02% or less of C, 0.1% to 1.0% of Si, greater than 0.6% to 1.5% of Mn, 0.01% to 0.05% of P, 0.0001% to 0.0100% of S, 13.0% to 20.0% of Cr, 0.1% to 3.0% of Mo, 0.005% to 0.20% of Ti, 0.3% to 1.0% of Nb, 0.0002% to 0.0050% of B, 0.005% to 0.50% of Al, and 0.02% or less of N, with the balance being Fe and inevitable impurities, in which {111}-oriented grains are present at an area ratio of 20% or greater in a region from a surface layer to t/4 (t is a sheet thickness), {111}-oriented grains are present at an area ratio of 40% or greater in a region from t/4 to t/2, and {011}-oriented grains are present at an area ratio of 15% or less in the entire region in a thickness direction.
摘要翻译：本发明提供一种耐热冷轧铁素体系不锈钢板，其以质量％计含有0.02％以下的C，0.1〜1.0％的Si，大于0.6％〜1.5％的Mn，0.01〜0.05％的P，0.0001〜0.0100％的S，13.0〜20.0％的Cr，0.1〜3.0％的Mo，0.005〜0.20％的Ti，0.3〜1.0％的Nb，0.0002〜0.0050％的B ，Al：0.005〜0.50％，N：0.02％以下，余量为Fe和不可避免的杂质，{111}取向晶粒的面积比为20％以上，表面层至t / 4（t为片材厚度），{111}取向晶粒以t / 4至t / 2的区域以40％以上的面积比存在，{011}取向晶粒以厚度方向的整个区域的面积率为15％以下。

16. 发明申请

US20130306204A1 HOT ROLLED FERRITIC STAINLESS STEEL SHEET, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING FERRITIC STAINLESS STEEL SHEET 有权
标题翻译：热轧不锈钢不锈钢板及其制造方法以及生产不锈钢不锈钢板的方法
公开(公告)号：US20130306204A1
公开(公告)日：2013-11-21
申请号：US13981395
申请日：2012-02-08
申请人： Shinichi Teraoka , Masaaki Kobayashi , Yuuji Koyama , Junichi Hamada , Norihiro Kanno , Yoshiharu Inoue , Ken Kimura , Jun Takahashi , Shigeyuki Gotoh
发明人： Shinichi Teraoka , Masaaki Kobayashi , Yuuji Koyama , Junichi Hamada , Norihiro Kanno , Yoshiharu Inoue , Ken Kimura , Jun Takahashi , Shigeyuki Gotoh
IPC分类号： C22C38/54 , C22C38/50 , C22C38/42 , C22C38/48 , B21B1/26 , C22C38/46 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C21D8/02 , C22C38/44
CPC分类号： C22C38/54 , B21B1/26 , C21D6/002 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D9/46 , C22C38/001 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50
摘要： This hot-rolled ferritic stainless steel sheet has a steel composition containing, in terms of % by mass: 0.02% or less of C; 0.02% or less of N; 0.1% to 1.5% of Si; 1.5% or less of Mn; 0.035% or less of P; 0.010% or less of S; 1.5% or less of Ni; 10% to 20% of Cr; 1.0% to 3.0% of Cu; 0.08% to 0.30% of Ti; and 0.3% or less of Al, with the balance being Fe and unavoidable impurities, and the hot-rolled ferritic stainless steel sheet has a Vickers hardness of less than 235 Hv.
摘要翻译：这种热轧的铁素体系不锈钢板具有以质量％计含有C：0.02％以下的钢组合物。 0.02％以下的N; 0.1％〜1.5％的Si; 1.5％以下的Mn; 0.035％以下的P; 0.010％以下的S; 1.5％以下的Ni; 10％〜20％的Cr; 1.0％〜3.0％的Cu; 0.08％〜0.30％的Ti; 和0.3％以下的Al，余量为Fe和不可避免的杂质，热轧的铁素体不锈钢板的维氏硬度小于235Hv。

17. 发明授权

US08500923B2 High aluminum ferritic stainless steel sheet for weight sensor substrate, method for producing the same and weight sensor 有权
标题翻译：用于重量传感器基板的高铝铁素体不锈钢板，其制造方法和重量传感器
公开(公告)号：US08500923B2
公开(公告)日：2013-08-06
申请号：US12152505
申请日：2008-05-14
申请人： Masuhiro Fukaya , Tadashi Komori
发明人： Masuhiro Fukaya , Tadashi Komori
IPC分类号： C22C38/18
CPC分类号： C22C38/26 , C22C38/02 , C22C38/04 , C22C38/06
摘要： The present invention provides a stainless steel as a metal base material for a weight sensor substrate of an automobile airbag. The stainless steel sheet contains a high aluminiferous ferritic stainless steel containing, in mass, Al of 2.5 to 8%, C: 0.025% or less, N: 0.025% or less, the sum of C and N being 0.030% or less, and Nb: 0.05 to 0.5%, with the balance Fe and unavoidable impurities. Said stainless steel sheet may further contain, in mass, one or more of V: 0.05 to 0.4%, Ti: 0.02 to 0.2%, and Zr: 0.02 to 0.2%. The present invention controls the difference in the average linear expansion coefficient between said stainless steel sheet and crystallized glass for said weight sensor to less than 10% in the temperature range from 20° C. to 900° C. and thus to improve the adhesiveness of said stainless steel sheet with said crystallized glass.
摘要翻译：本发明提供一种作为汽车安全气囊的重量传感器基板的金属基材的不锈钢。该不锈钢板含有高质量的铁素体不锈钢，其质量为Al为2.5〜8％，C：0.025％以下，N：0.025％以下，C和N的总和为0.030％以下，以及 Nb：0.05〜0.5％，余量为Fe和不可避免的杂质。所述不锈钢板还可以进一步含有V：0.05〜0.4％，Ti：0.02〜0.2％，Zr：0.02〜0.2％中的一种或多种。本发明将所述重量传感器的所述不锈钢板和结晶玻璃之间的平均线膨胀系数的差异在20℃至900℃的温度范围内控制在小于10％，从而提高粘合性所述不锈钢板与所述结晶玻璃。

18. 发明授权

US08470237B2 Stainless steel excellent in corrosion resistance, ferritic stainless steel excellent in resistance to crevice corrosion and formability, and ferritic stainless steel excellent in resistance to crevice corrosion 有权
标题翻译：耐腐蚀性优异的不锈钢，耐缝隙腐蚀和成型性优异的铁素体不锈钢，耐缝隙腐蚀性优异的铁素体不锈钢
公开(公告)号：US08470237B2
公开(公告)日：2013-06-25
申请号：US12226592
申请日：2007-05-08
申请人： Nobuhiko Hiraide , Haruhiko Kajimura , Ken Kimura
发明人： Nobuhiko Hiraide , Haruhiko Kajimura , Ken Kimura
IPC分类号： C22C38/32 , C22C38/60 , C22C38/22 , C22C38/28 , C22C38/18
CPC分类号： C22C38/04 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/008 , C22C38/02 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/60
摘要： The stainless steel of the first embodiment includes C: 0.001 to 0.02%, N: 0.001 to 0.02%, Si: 0.01 to 0.5%, Mn: 0.05 to 0.5%, P: 0.04% or less, S: 0.01% or less, Ni: more than 3% to 5%, Cr: 11 to 26%, and either one or both of Ti: 0.01 to 0.5% and Nb: 0.02 to 0.6%, and contains as the remainder, Fe and unavoidable impurities. The stainless steel of the second embodiment has an alloy composition different from those of the first and third embodiments and satisfies the formula (A): Cr+3Mo+6Ni≧23 and formula (B): Al/Nb≧10 and contains as the remainder, Fe and unavoidable impurities. The stainless steel of the third embodiment has an alloy composition different from those of the first and second embodiments and includes either one or both of Sn: 0.005 to 2% and Sb: 0.005 to 1% and contains as the remainder, Fe and unavoidable impurities.
摘要翻译：第一实施例的不锈钢包括C：0.001〜0.02％，N：0.001〜0.02％，Si：0.01〜0.5％，Mn：0.05〜0.5％，P：0.04％以下，S：0.01％以下， Ni：超过3％〜5％，Cr：11〜26％，Ti：0.01〜0.5％，Nb：0.02〜0.6％中的任一种或两者，其余为Fe和不可避免的杂质。第二实施例的不锈钢具有不同于第一和第三实施例的合金组成，满足式（A）：Cr + 3Mo + 6Ni = 23，式（B）：Al / Nb> = 10，并且包含作为余量，Fe和不可避免的杂质。第三实施方案的不锈钢具有与第一和第二实施方案不同的合金组成，并且包括Sn：0.005〜2％中的一种或两种，Sb：0.005〜1％，作为余量，含有Fe和不可避免的杂质。

19. 发明授权

US08048239B2 Ferritic stainless steel sheet superior in shapeability and method of production of the same 有权
标题翻译：铁素体不锈钢板的成型性优良，生产方法相同
公开(公告)号：US08048239B2
公开(公告)日：2011-11-01
申请号：US12229825
申请日：2008-08-26
申请人： Junichi Hamada , Naoto Ono , Yoshiharu Inoue , Ken Kimura
发明人： Junichi Hamada , Naoto Ono , Yoshiharu Inoue , Ken Kimura
IPC分类号： C21D8/02 , C22C38/22 , C22C38/26
CPC分类号： C21D8/0426 , C21D6/002 , C21D8/0436 , C21D8/0473 , C21D2211/005 , C22C38/02 , C22C38/04 , C22C38/22 , C22C38/26 , C22C38/28
摘要： The present invention provides a ferritic stainless steel sheet superior in shapeability containing, by wt %, C: 0.001 to 0.010%, Si: 0.01 to 1.0%, Mn: 0.01 to 1.0%, P: 0.01 to 0.04%, Cr: 10 to 20%, N: 0.001 to 0.020%, Nb: 0.3 to 1.0%, and Mo: 0.5 to 2.0%, wherein the total precipitates are, by wt %, 0.05 to 0.60%. A method of production of a ferritic stainless steel sheet superior in shapeability comprising producing a cold rolling material in the production process so that the Nb-based precipitates become, by vol %, 0.15% to 0.6% and have a diameter of 0.1 μm to 1 μm and/or so that the recrystallized grain size becomes 1 μm to 40 μm and the recrystallization rate becomes 10 to 90%, then cold rolling and annealing it at 1010 to 1080° C.
摘要翻译：本发明提供一种成形性优异的铁素体系不锈钢板，其含有C：0.001〜0.010％，Si：0.01〜1.0％，Mn：0.01〜1.0％，P：0.01〜0.04％，Cr：10〜 20％，N：0.001〜0.020％，Nb：0.3〜1.0％，Mo：0.5〜2.0％，其中总重量为0.05〜0.60％。一种制造成型性优异的铁素体系不锈钢板的制造方法，其特征在于，包括在制造工序中制造冷轧材料，使得Nb系析出物以体积％计为0.15〜0.6％，直径为0.1μm〜1 和/或使得再结晶晶粒尺寸为1μm〜40μm，再结晶率为10〜90％，然后冷轧并在1010〜1080℃退火。

20. 发明申请

US20110186184A1 Ferritic stainless steel casting and sheet and method for producing the same 有权
标题翻译：铁素体不锈钢铸件及其制造方法
公开(公告)号：US20110186184A1
公开(公告)日：2011-08-04
申请号：US13066020
申请日：2011-04-05
申请人： Akihiko Takahashi , Junichi Hamada , Ken Kimura , Takashi Morchoshi , Yoshihito Yamada , Toyohiko Kakihara , Satoshi Hashimoto
发明人： Akihiko Takahashi , Junichi Hamada , Ken Kimura , Takashi Morchoshi , Yoshihito Yamada , Toyohiko Kakihara , Satoshi Hashimoto
IPC分类号： C21D8/02 , B22D25/02 , C21D11/00
CPC分类号： C22C38/002 , C21C5/005 , C21C7/0006 , C21C7/005 , C21D8/021 , C21D8/0268 , C21D8/0273 , C21D8/041 , C21D8/0468 , C21D8/0473 , C21D2211/005 , C22C38/004 , C22C38/28
摘要： The present invention provides a ferritic stainless steel casting and a sheet thereof excellent in deep drawability, punch stretchability and ridging resistance and a method for producing the casting and the sheet. In the present invention, a chemical composition is controlled so that the amounts of C, N, Si, Mn, P and Ti may be reduced to the utmost for securing high workability and, on the basis of the chemical composition, the roping and ridging of a steel sheet product is reduced by adding Mg, thus dispersing Mg containing oxides that accelerate the formation of nuclei for solidification and, resultantly, suppressing the development of coarse columnar crystals in a casting. The present invention is characterized in that the average composition of the Mg containing oxides dispersing in a casting satisfies the following expressions and , 17.4(Al2O3)+3.9(MgO)+0.3(MgAl2O4)+18.7(CaO)≦500 , (Al2O3)+(MgO)+(MgAl2O4)+(CaO)≧95 .
摘要翻译：本发明提供一种铁素体不锈钢铸件及其深冲性，冲压伸缩性和抗皱性优异的片材以及铸造和片材的制造方法。在本发明中，化学成分被控制为使得可以将C，N，Si，Mn，P和Ti的量最大限度地降低以确保高的可加工性，并且基于化学成分，卷绕和起皱通过添加Mg来还原钢板产品，从而分散加速形成核固化的含Mg氧化物，从而抑制铸造中的粗大柱状晶体的发展。本发明的特征在于，分散在铸件中的含Mg氧化物的平均组成满足以下表达式2和3，17.4（Al 2 O 3）+3.9（MgO）+0.3（MgAl 2 O 4）+18.7（CaO）＆Al; 500 2，（Al 2 O 3）+（MgO）+（MgAl 2 O 4）+（CaO）≥953。

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