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发明授权
US08383034B2 Ferritic stainless steel sheet for water heater excellent in corrosion resistance at welded part and steel sheet toughness 有权
用于热水器的铁素体不锈钢板焊接部件的耐腐蚀性优异，钢板韧性好

Ferritic stainless steel sheet for water heater excellent in corrosion resistance at welded part and steel sheet toughness
摘要：
A ferritic stainless steel sheet for a water heater with excellent corrosion resistance of welds and toughness includes, in terms of mass %, 0.020% or less of C, 0.30 to 1.00% of Si, 1.00% or less of Mn, 0.040% or less of P, 0.010% or less of S, 20.0 to 28.0% of Cr, 0.6% or less of Ni, 0.03 to 0.15% of Al, 0.020% or less of N, 0.0020 to 0.0150% of O, 0.3 to 1.5% of Mo, 0.25 to 0.60% of Nb, and 0.05% or less of Ti, the remainder being composed of Fe and unavoidable impurities, and the ferritic stainless steel sheet satisfying the following formulae (1) and (2): 25≦Cr+3.3Mo≦30  (1) 0.35≦Si+Al≦0.85  (2) wherein Cr, Mo, Si, and Al represent the content (mass %) of Cr, Mo, Si, and Al, respectively.
摘要（中）：

用于热焊接的耐热性优异的铁素体不锈钢板，其质量％为C：0.020％以下，Si：0.30〜1.00％，Mn：1.00％以下，0.040％以下 的P，0.010％以下的S，20.0〜28.0％的Cr，0.6％以下的Ni，0.03〜0.15％的Al，0.020％以下的N，0.0020〜0.0150％的O，0.3〜1.5％ Mo，0.25〜0.60％的Nb和0.05％以下的Ti，余量由Fe和不可避免的杂质构成，并且满足下式（1）和（2）的铁素体不锈钢片：25＆nlE; Cr + 3.3 其中Cr，Mo，Si和Al分别表示Cr，Mo，Si和Al的含量（质量％），Mo（n）

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