-
公开(公告)号：US11142814B2
公开(公告)日：2021-10-12
申请号：US16479120
申请日：2018-01-18
发明人： Akito Mizutani , Mitsuyuki Fujisawa
IPC分类号： C22C38/42 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/44 , C22C38/50 , C22C38/54 , C22C38/58 , C21C5/00 , C21D9/46
摘要： Provided is a ferritic-austenitic duplex stainless steel sheet in which no blowholes are formed during welding and which has excellent strength.
A chemical composition includes, in mass %, C: 0.10% or less, Si: 1.0% or less, Mn: 2.0 to 7.0%, P: 0.07% or less, S: 0.030% or less, Cr: 18.0 to 24.0%, Ni: 0.1 to 3.0%, Mo: 0.01 to 1.0%, Cu: 0.1 to 3.0%, Al: 0.003 to 0.10%, Zr: 0.01 to 0.50%, and N: 0.15 to 0.30%, with the balance being Fe and incidental impurities, the chemical composition satisfying formula (1) below and formula (2) below. N—Zr/6.5≥0.15% (1) N—Zr/6.5≤0.23% (2) Here, in formula (1) and formula (2), N represents a content (mass %) of the corresponding chemical element N and Zr represents a content (mass %) of the corresponding chemical element Zr.-
公开(公告)号：US11008636B2
公开(公告)日：2021-05-18
申请号：US16342313
申请日：2017-10-16
发明人： Akito Mizutani , Mitsuyuki Fujisawa
IPC分类号： B21C37/00 , C21D9/46 , C22C38/50 , C22C38/48 , C22C38/46 , C22C38/44 , C22C38/42 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C21D8/02 , C21D6/00 , F01N3/28 , C22C38/54 , F01N13/00
摘要： A stainless steel foil having a chemical composition comprising, by mass %, C: 0.015% or less, Si: 0.50% or less, Mn: 0.50% or less, P: 0.040% or less, S: 0.010% or less, Cr: 10.0% or more and less than 16.0%, Al: 2.5 to 4.5%, N: 0.015% or less, Ni: 0.05 to 0.50%, Cu: 0.01 to 0.10%, Mo: 0.01 to 0.15%, at least one selected from the group consisting of Ti: 0.01 to 0.30%, Zr: 0.01 to 0.20%, Hf: 0.01 to 0.20%, and REM: 0.01 to 0.20%, where Ti+Zr+Hf+2REM≥0.06 and 0.30≥Ti+Zr+Hf are satisfied.
-
公开(公告)号：US20170088912A1
公开(公告)日：2017-03-30
申请号：US15126827
申请日：2015-02-25
IPC分类号： C21D9/46 , C21D6/00 , C21D1/06 , C21D1/74 , C22C38/54 , C22C38/50 , C22C38/48 , C22C38/46 , C22C38/44 , C22C38/42 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C23C8/02 , C23C8/26 , C23C8/80 , C21D8/00
CPC分类号： C21D9/46 , C21D1/06 , C21D1/74 , C21D6/002 , C21D6/004 , C21D8/005 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C23C8/02 , C23C8/26 , C23C8/80 , C23G1/00 , C23G1/081 , C23G1/086
摘要： Provided is a ferritic stainless steel that has excellent corrosion resistance and displays good brazing properties when brazing is carried out at high temperature using a Ni-containing brazing metal. These effects are obtained as a result of the steel having a chemical composition containing, in mass %: 0.003% to 0.020% of C; 0.05% to 1.00% of Si; 0.10% to 0.50% of Mn, 0.05% or less of P; 0.01% or less of S; 16.0% to 25.0% of Cr; 0.05% to 0.35% of Ti; 0.005% to 0.05% of Al; and 0.005% to 0.025% of N, the balance being Fe and incidental impurities, and as a result of a nitrogen-enriched layer being created that has a nitrogen concentration peak value of 0.05 mass % to 0.30 mass % at a depth of within 0.05 μm of a surface of the steel.
-
公开(公告)号：US11497085B2
公开(公告)日：2022-11-08
申请号：US16965013
申请日：2018-12-05
IPC分类号： H05B3/12 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C21D8/02 , C23C10/46
摘要： A Fe—Cr alloy having a chemical composition with increased Si and Al contents, in which the chemical composition satisfies the following formula (1) in terms of the Si content, Al content, and Cr content: 14.0≤% Si+1.15×% Al+0.35×% Cr (1).
-
公开(公告)号：US10821706B2
公开(公告)日：2020-11-03
申请号：US16302219
申请日：2017-04-21
发明人： Akito Mizutani , Mitsuyuki Fujisawa
IPC分类号： B32B15/01 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C21D6/00 , C21D8/02 , C21D9/46 , C22C38/50 , C23C14/16 , C22C38/34
摘要： Disclosed is a ferritic stainless steel sheet including: a chemical composition containing, by mass %, C: 0.025% or less, Si: 0.01% to 2.0%, Mn: 0.01% to 1.0%, P: 0.050% or less, S: 0.010% or less, Cr: 10.5% to 20.0%, Al: 0.01% to 0.50%, Ni: 0.01% to 0.60%, Ti: 0.10% to 0.50%, and N: 0.025% or less, with the balance being Fe and inevitable impurities; and a coating layer including at least one coating layer selected from the group consisting of an Al coating layer, an Fe coating layer, and a Si coating layer on one or both sides thereof, in which the coating layer has a total thickness of 30 nm to 150 nm per side.
-
公开(公告)号：US10151020B2
公开(公告)日：2018-12-11
申请号：US14907690
申请日：2014-07-16
IPC分类号： C22C38/52 , C22C38/48 , C22C38/00 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/50 , C22C38/44 , B32B15/00 , C23C26/00 , C23C30/00 , C23C8/14 , C23C8/18 , C21D1/74 , C21D6/00 , C21D8/02 , C21D1/76 , C21D9/46
摘要： The ferritic stainless steel foil has a composition containing, by mass %, C: 0.050% or less, Si: 0.20% or less, Mn: 0.20% or less, P: 0.050% or less, S: 0.0050% or less, Cr: 10.5% or more and 20.0% or less, Ni: 0.01% or more and 1.00% or less, Al: more than 1.5% and less than 3.0%, Cu: 0.01% or more and 1.00% or less, N: 0.10% or less, and further contains one or more elements selected from Ti: 0.01% or more and 1.00% or less, Zr: 0.01% or more and 0.20% or less, and Hf: 0.01% or more and 0.20% or less, and the balance being Fe and inevitable impurities. This enables a composite layer of an Al oxide layer and a Cr oxide layer to be formed on the surface of the ferritic stainless steel foil in a high-temperature oxidizing atmosphere at 800° C. or more.
-
公开(公告)号：US20160160328A1
公开(公告)日：2016-06-09
申请号：US14907690
申请日：2014-07-16
IPC分类号： C22C38/52 , C22C38/48 , C22C38/00 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/50 , C22C38/44
CPC分类号： C22C38/52 , C21D1/74 , C21D1/76 , C21D6/002 , C21D8/0236 , C21D9/46 , C21D2211/005 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/48 , C22C38/50 , C23C8/14 , C23C8/18 , Y10T428/12611 , Y10T428/12618 , Y10T428/12667 , Y10T428/12972 , Y10T428/12979 , Y10T428/24967 , Y10T428/24975 , Y10T428/263 , Y10T428/264 , Y10T428/265
摘要： The ferritic stainless steel foil has a composition containing, by mass %, C: 0.050% or less, Si: 0.20% or less, Mn: 0.20% or less, P: 0.050% or less, S: 0.0050% or less, Cr: 10.5% or more and 20.0% or less, Ni: 0.01% or more and 1.00% or less, Al: more than 1.5% and less than 3.0%, Cu: 0.01% or more and 1.00% or less, N: 0.10% or less, and further contains one or more elements selected from Ti: 0.01% or more and 1.00% or less, Zr: 0.01% or more and 0.20% or less, and Hf: 0.01% or more and 0.20% or less, and the balance being Fe and inevitable impurities. This enables a composite layer of an Al oxide layer and a Cr oxide layer to be formed on the surface of the ferritic stainless steel foil in a high-temperature oxidizing atmosphere at 800° C. or more.
摘要翻译： 铁素体系不锈钢箔的质量％为C：0.050％以下，Si：0.20％以下，Mn：0.20％以下，P：0.050％以下，S：0.0050％以下，Cr： ：10.5％以上且20.0％以下，Ni：0.01％以上且1.00％以下，Al：大于1.5％且小于3.0％，Cu：0.01％以上且1.00％以下，N：0.10 ％以下，还含有选自Ti：0.01％以上且1.00％以下，Zr：0.01％以上且0.20％以下，Hf：0.01％以上且0.20％以下的一种以上的元素， 余量为Fe和不可避免的杂质。 由此，能够在800℃以上的高温氧化气氛下，在铁素体系不锈钢箔的表面上形成Al氧化物层和Cr氧化物层的复合层。
-
公开(公告)号：US11767573B2
公开(公告)日：2023-09-26
申请号：US17275051
申请日：2019-08-26
发明人： Akito Mizutani , Rinta Sato , Mitsuyuki Fujisawa
CPC分类号： C21D9/46 , C21D1/02 , C21D6/004 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/12 , C21D2211/005
摘要： A ferritic stainless steel sheet comprises a chemical composition containing, in mass %, C: 0.030% or less, Si: 3.0% or less, Mn: 1.0% or less, P: 0.040% or less, S: 0.010% or less, Cr: 11.0% to 30.0%, Al: 8.0% to 20.0%, Ni: 0.05% to 0.50%, N: 0.020% or less, and at least one selected from the group consisting of Zr: 0.01% to 0.20% and Hf: 0.01% to 0.20%, with a balance consisting of Fe and inevitable impurities.
-
公开(公告)号：US10968499B2
公开(公告)日：2021-04-06
申请号：US15531562
申请日：2015-07-02
发明人： Akito Mizutani , Masataka Yoshino , Mitsuyuki Fujisawa , Ayako Ta
IPC分类号： C21D9/46 , C22C38/54 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/40 , C21D6/00
摘要： Ferritic stainless steel that has excellent formability and ridging resistance and can be produced with high productivity is provided. The ferritic stainless steel has: a predetermined chemical composition; a microstructure containing ferrite crystal grains which satisfy at least one of a C concentration of 2CC or more and an N concentration of 2CN or more, the ferrite crystal grains having a volume fraction with respect to a whole volume of the microstructure of 5% or more and 50% or less, where CC and CN are respectively C content and N content in the steel in mass %; and a Vickers hardness of 180 or less.
-
公开(公告)号：US10801084B2
公开(公告)日：2020-10-13
申请号：US15737045
申请日：2015-07-02
IPC分类号： C21D8/02 , C21D9/46 , C22C38/54 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C21D6/00 , C22C38/40
摘要： Provided are a material for cold rolled stainless steel sheets having sufficient corrosion resistance, excellent surface quality, excellent formability, and excellent ridging resistance; a method for manufacturing the same; and a cold rolled steel sheet. A material for cold rolled stainless steel sheets according to the present invention contains C: 0.005% to 0.025%, Si: 0.02% to 0.50%, Mn: 0.55% to 1.0%, P: 0.040% or less, S: 0.01% or less, Cr: 15.5% to 18.0%, Ni: 0.01% to 1.0%, Al: 0.001% to 0.10%, and N: 0.005% to 0.025% on a mass basis, the remainder being Fe and inevitable impurities, and has a metallographic structure containing 5% to 20% of a martensite phase in terms of volume fraction, the remainder being a ferrite phase.
-
-
-
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.032 秒)
