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1. 发明公开

EP3045338A1 INEXPENSIVE AUTOMOTIVE MEMBER AND FEED OIL PIPE, EXHIBITING EXCELLENT SALT CORROSION RESISTANCE 有权转让
标题翻译：低成本CAR元与油输送管性优异耐盐腐蚀性能
公开(公告)号：EP3045338A1
公开(公告)日：2016-07-20
申请号：EP14844177.7
申请日：2014-09-12
申请人： Nippon Steel & Sumikin Stainless Steel Corporation
发明人： URASHIMA Hiroshi , SAKAMOTO Shunji , TERAOKA Shinichi , TANOUE Toshio
IPC分类号： B60K15/04 , C22C38/00 , C22C38/28 , C22C38/54 , C23C2/12 , C23C28/00 , C23F13/00 , C25D13/12 , F02M37/00 , F16L3/02 , F16L3/22 , F16L3/223
CPC分类号： C22C38/60 , B60K15/04 , B60K2015/0346 , B60K2015/03538 , B60K2015/0458 , B60K2015/047 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/30 , C22C38/32 , C22C38/48 , C22C38/50 , C22C38/54 , C23C2/12 , C23C2/26 , C23F13/16 , C23F2213/32 , C25D7/04 , C25D9/00 , C25D13/12 , C25D13/14 , F02M37/0017 , F16L3/237 , F16L58/00 , F16L58/08
摘要： An object of the invention is to provide an inexpensive automotive member and feed oil pipe, exhibiting excellent salt corrosion resistance.
An automotive member or a feed oil pipe includes: a member made of a ferritic stainless steel containing, in mass%, at most 0.015% of C, at most 0.015% of N, 10.5% to 18.0% of Cr, 0.01% to 0.80% of Si, 0.01% to 0.80% of Mn, at most 0.050% of P, at most 0.010% of S, 0.010% to 0.100% of Al, and one or both of 0.03% to 0.30% of Ti and Nb; a metal fitting made of an aluminized stainless steel sheet, the metal fitting being attached to the member; and a gap structure defined between the member and the metal fitting, the gap structure being exposed to a chloride environment, where the metal fitting has an Al-plating weight per unit area of 20 g/m 2 or more and 150 g/m 2 or less on a surface corresponding to a gap of the gap structure, and surfaces of the metal fitting and the non-aluminized member other than the gap are coated with a cation electrodeposition coating film having a thickness of 5 µm to 35 µm.

4. 发明公开

EP3249067A1 FERRITIC STAINLESS STEEL FOR EXHAUST SYSTEM MEMBER HAVING EXCELLENT CORROSION RESISTANCE AFTER HEATING 有权转让
标题翻译：用于加热后具有优良耐腐蚀性的排气系统部件的铁素体不锈钢
公开(公告)号：EP3249067A1
公开(公告)日：2017-11-29
申请号：EP16740065.4
申请日：2016-01-15
申请人： Nippon Steel & Sumikin Stainless Steel Corporation
发明人： HIRAIDE Nobuhiko , URASHIMA Hiroshi
IPC分类号： C22C38/00 , C21D9/46 , C22C38/28 , C22C38/60
摘要： A ferritic stainless steel for exhaust system components excellent in corrosion resistance after heating is provided. A ferritic stainless steel for exhaust system components excellent in corrosion resistance after heating includes: 0.015 mass% or less of C; 0.02 mass% or less of N; 0.03 mass% to 1.0 mass of Si; 1.0 mass of Mn; 0.04 mass of P; 0.01 mass of S; 10.5 mass% to 22.5 mass of Cr; 0.02 mass% to 0.5 mass of Sn; 0.003 mass% to 0.2 mass of Al; one or both of 0.03 mass% to 0.35 mass of Ti and 0.03 mass% to 0.6 mass of Nb; and a remnant comprising Fe and inevitable impurities, wherein a grain size number on a surface of the ferritic stainless steel is 6 to 2 to 15 nm of a layer containing Sn at a concentration twice or more of Sn content in the base material is formed on the ferritic stainless steel.
摘要翻译：提供加热后的耐腐蚀性优异的排气系统部件用铁素体系不锈钢。用于加热后的耐腐蚀性优异的排气系统部件用铁素体系不锈钢包含：C：0.015质量％以下; N：0.02质量％以下， 0.03质量％至1.0质量％的Si; 1.0质量的Mn; 0.04质量的P; 0.01质量的S; 10.5质量％至22.5质量％的Cr; 0.02质量％至0.5质量％的Sn; 0.003质量％至0.2质量的Al; 0.03质量％至0.35质量％的Ti和0.03质量％至0.6质量％的Nb中的一种或两种; 以及含有Fe和不可避免的杂质的残渣，其特征在于，所述铁素体系不锈钢的表面的晶粒尺寸数为6〜2〜15nm，所述Sn以2质量％以上的比例含有Sn 铁素体不锈钢。

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