JP2012193392A - 耐銹性と防眩性に優れた高純度フェライト系ステンレス鋼板 - Google Patents
耐銹性と防眩性に優れた高純度フェライト系ステンレス鋼板 Download PDFInfo
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Abstract
【解決手段】C:0.001〜0.03%、Si:0.01〜1%、Mn:0.01〜1.5%、P:0.005〜0.05%、S:0.0001〜0.01%、Cr:13〜30%、N:0.001〜0.03%、Al:0.005〜1%及びSn:0.01〜1%
を含有し、残部Fe及び不可避的不純物からなる鋼板に、表面皮膜を設け、前記表面皮膜に、Al及びSiの1種又は2種を合計で5〜50原子%、及びSnを含有させ、かつ、前記表面皮膜内の平均Cr濃度を、前記鋼板内部のCr濃度の1.1〜3倍とし、前記表面皮膜の表面粗さを、算術平均粗さRaで、0.1〜1.5μmとする。
【選択図】なし
Description
C:0.001〜0.03%、
Si:0.01〜1%、
Mn:0.01〜1.5%、
P:0.005〜0.05%、
S:0.0001〜0.01%、
Cr:13〜30%、
N:0.001〜0.03%、
Al:0.005〜1%及び
Sn:0.01〜1%
を含有し、残部Fe及び不可避的不純物からなる鋼板が、表面皮膜を有し、
前記表面皮膜が、C、O及びNを除いた前記表面被膜を構成するカチオンのみの割合で、Al及びSiの1種又は2種を合計で5〜50原子%、及びSnを含有し、かつ、前記表面皮膜内の平均Cr濃度が、C、O及びNを除いた前記表面皮膜を構成するカチオンのみの割合で、前記鋼板内部のCr濃度の1.1〜3倍であり、
前記表面皮膜が、算術平均粗さRaで、0.1〜1.5μmの表面粗さを有することを特徴とする耐銹性と防眩性に優れた高純度フェライト系ステンレス鋼板。
Nb:0.03〜0.5%、
Ti:0.03〜0.5%、
Ni:0.1〜0.5%、
Cu:0.1〜0.5%、
Mo:0.1〜0.5%、
V:0.01〜0.5%、
Zr:0.01〜0.5%、
Co:0.01〜0.5%、
Mg:0.0001〜0.005%、
B:0.0003〜0.005%以下及び
Ca:0.005%以下
のうちから選ばれる1種又は2種以上を含有し、
前記表面皮膜が、さらに、C、O及びNを除いた前記表面皮膜を構成するカチオンのみの割合で、Al、Si、Nb及びTiの1種又は2種以上を合計で5〜50原子%以上を含有することを特徴とする上記(1)に記載の耐銹性と防眩性に優れた高純度フェライト系ステンレス鋼板。
La:0.001〜0.1%、
Y:0.001〜0.1%、
Hf:0.001〜0.1%及び
REM:0.001〜0.1%
のうちから選ばれる1種又は2種以上を含有することを特徴とする上記(1)又は(2)に記載の耐銹性と防眩性に優れた高純度フェライト系ステンレス鋼板。
Cは、耐銹性を劣化させるため、その含有量は少ないほど良いため、上限を0.03%とする。但し、過度の低減は精錬コストの増加に繋がるため、下限を0.001%とする。好ましくは、耐銹性や製造コストを考慮して0.002〜0.01%とする。
上記(A)の成分組成で、SUS304や22%Cr−1%Mo鋼と同等以上の耐銹性を満足しつつ、防眩性も得るために、鋼板の表面粗さを算術平均粗さRaで0.1μm以上とする。
これまで説明してきたように、本発明の高純度フェライト系ステンレス鋼板は、表面皮膜を有する。この表面皮膜内の平均Cr濃度は、鋼板内部のCr濃度の1.1倍以上であることが必要である。表面皮膜内の平均Cr濃度が、鋼板内部のCr濃度の1.1倍未満であると、防眩性を確保しつつ、所望の耐銹性を得ることができないからである。一方、表面皮膜内の平均Cr濃度の上限は高いほど良いが、後述するように、表面被膜中にAl、Si、Nb及びTiの1種又は2種以上を合計で5〜50原子%、Snを1〜10原子%含有するため、平均Cr濃度の上限は3倍となる。ここで、鋼板内部のCr濃度とは、鋼板に含有するCr量のことである。
Claims (3)
- 質量%で、
C:0.001〜0.03%、
Si:0.01〜1%、
Mn:0.01〜1.5%、
P:0.005〜0.05%、
S:0.0001〜0.01%、
Cr:13〜30%、
N:0.001〜0.03%、
Al:0.005〜1%及び
Sn:0.01〜1%
を含有し、残部Fe及び不可避的不純物からなる鋼板が、表面皮膜を有し、
前記表面皮膜が、C、O及びNを除いた前記表面皮膜を構成するカチオンのみの割合で、Al及びSiの1種又は2種を合計で5〜50原子%、及びSnを含有し、かつ、前記表面皮膜内の平均Cr濃度が、C、O及びNを除いた前記表面皮膜を構成するカチオンのみの割合で、前記鋼板内部のCr濃度の1.1〜3倍であり、
前記表面皮膜が、算術平均粗さRaで、0.1〜1.5μmの表面粗さを有することを特徴とする耐銹性と防眩性に優れた高純度フェライト系ステンレス鋼板。 - 前記鋼板が、さらに、質量%で、
Nb:0.03〜0.5%、
Ti:0.03〜0.5%、
Ni:0.1〜0.5%、
Cu:0.1〜0.5%、
Mo:0.1〜0.5%、
V:0.01〜0.5%、
Zr:0.01〜0.5%、
Co:0.01〜0.5%、
Mg:0.0001〜0.005%、
B:0.0003〜0.005%以下及び
Ca:0.005%以下
のうちから選ばれる1種又は2種以上を含有し、
前記表面皮膜が、さらに、C、O及びNを除いた前記表面皮膜を構成するカチオンのみの割合で、Al、Si、Nb及びTiの1種又は2種以上を合計で5〜50原子%以上含有することを特徴とする請求項1に記載の耐銹性と防眩性に優れた高純度フェライト系ステンレス鋼板。 - 前記鋼板が、さらに、質量%で、
La:0.001〜0.1%、
Y:0.001〜0.1%、
Hf:0.001〜0.1%及び
REM:0.001〜0.1%
のうちから選ばれる1種又は2種以上を含有することを特徴とする請求項1又は2に記載の耐銹性と防眩性に優れた高純度フェライト系ステンレス鋼板。
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| JP2011055947A JP5709594B2 (ja) | 2011-03-14 | 2011-03-14 | 耐銹性と防眩性に優れた高純度フェライト系ステンレス鋼板 |
| BR112013023476-8A BR112013023476B1 (pt) | 2011-03-14 | 2012-03-05 | chapa de aço inoxidável ferrítico de pureza alta |
| KR1020137023588A KR20130123433A (ko) | 2011-03-14 | 2012-03-05 | 내녹성과 방현성이 우수한 고순도 페라이트계 스테인리스 강판 |
| CN2012800132207A CN103429777A (zh) | 2011-03-14 | 2012-03-05 | 抗锈蚀性和防眩性优良的高纯度铁素体系不锈钢 |
| KR1020187035628A KR102046742B1 (ko) | 2011-03-14 | 2012-03-05 | 내녹성과 방현성이 우수한 고순도 페라이트계 스테인리스 강판 |
| PCT/JP2012/055583 WO2012124528A1 (ja) | 2011-03-14 | 2012-03-05 | 耐銹性と防眩性に優れた高純度フェライト系ステンレス鋼板 |
| KR1020157028605A KR20150119500A (ko) | 2011-03-14 | 2012-03-05 | 내녹성과 방현성이 우수한 고순도 페라이트계 스테인리스 강판 |
| US14/001,920 US9289964B2 (en) | 2011-03-14 | 2012-03-05 | High purity ferritic stainless steel sheet excellent in corrosion resistance and anti-glare property |
| EP12756952.3A EP2687617B1 (en) | 2011-03-14 | 2012-03-05 | High-purity ferritic stainless steel sheet with excellent corrosion resistance and anti-glare properties |
| CN201710061551.2A CN106978569A (zh) | 2011-03-14 | 2012-03-05 | 抗锈蚀性和防眩性优良的高纯度铁素体系不锈钢及制造方法 |
| ES12756952T ES2802677T3 (es) | 2011-03-14 | 2012-03-05 | Chapa de acero inoxidable ferrítico de alta pureza con excelente resistencia a la corrosión y con propiedad anti-reflectante |
| TW101108472A TWI465585B (zh) | 2011-03-14 | 2012-03-13 | With high resistance to rust and anti-glare of high purity fat iron-based stainless steel plate |
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| EP (1) | EP2687617B1 (ja) |
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| KR (3) | KR20130123433A (ja) |
| CN (2) | CN106978569A (ja) |
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| WO2014157578A1 (ja) * | 2013-03-27 | 2014-10-02 | 新日鐵住金ステンレス株式会社 | 研磨後の表面耐食性に優れるフェライト系ステンレス鋼及びその製造方法 |
| JP2020063472A (ja) * | 2018-10-16 | 2020-04-23 | 日鉄ステンレス株式会社 | 磁気特性に優れたフェライト系ステンレス鋼 |
| JP2020100866A (ja) * | 2018-12-21 | 2020-07-02 | 日鉄ステンレス株式会社 | 耐水素脆性と耐低温脆性に優れたCr系ステンレス鋼 |
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| JP7482666B2 (ja) | 2020-03-30 | 2024-05-14 | 日鉄ステンレス株式会社 | フェライト系ステンレス鋼およびフェライト系ステンレス鋼の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102046742B1 (ko) | 2019-11-19 |
| US9289964B2 (en) | 2016-03-22 |
| BR112013023476A2 (pt) | 2016-12-06 |
| KR20150119500A (ko) | 2015-10-23 |
| WO2012124528A1 (ja) | 2012-09-20 |
| CN103429777A (zh) | 2013-12-04 |
| EP2687617A1 (en) | 2014-01-22 |
| EP2687617A4 (en) | 2014-10-15 |
| US20130337289A1 (en) | 2013-12-19 |
| JP5709594B2 (ja) | 2015-04-30 |
| TWI465585B (zh) | 2014-12-21 |
| TW201245467A (en) | 2012-11-16 |
| BR112013023476B1 (pt) | 2018-11-27 |
| EP2687617B1 (en) | 2020-05-20 |
| CN106978569A (zh) | 2017-07-25 |
| KR20180133567A (ko) | 2018-12-14 |
| KR20130123433A (ko) | 2013-11-12 |
| ES2802677T3 (es) | 2021-01-20 |
| BR112013023476A8 (pt) | 2018-04-17 |
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