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发明公开
CN104245991A 不锈钢复合钢板的复合材料和使用该复合材料的不锈钢复合钢板及其制造方法 有权

不锈钢复合钢板的复合材料和使用该复合材料的不锈钢复合钢板及其制造方法
摘要：
本发明的目的在于提供在提高对接合界面的完好性的可靠性的同时维持母材和复合材料的性能(耐腐蚀性和机械特性)的耐海水腐蚀性优良的不锈钢复合钢的复合材料和使用该复合材料的不锈钢复合钢及其制造方法。一种不锈钢复合钢板的复合材料和使用该复合材料的不锈钢复合钢板，所述不锈钢复合钢板的复合材料的特征在于，正火处理后的不锈钢复合钢板的复合材料以质量％计含有C：0.03％以下、Si：1.5％以下、Mn：2.0％以下、P：0.04％以下、S：0.03％以下、Ni：22.0～25.0％、Cr：21.0～25.0％、Mo：2.0～5.0％、N：0.15～0.25％且余量由Fe和不可避免的杂质构成，ASTM中规定的临界点蚀温度(CPT)为45℃以上，且NORSOK STANDARD中规定的腐蚀试验所引起的所述复合材料的焊接部的腐蚀量为1.0g/m2以下。
摘要（英）：

The purpose of the present invention is to provide: a cladding material for stainless-steel-clad steels which retain both improved reliability of the health of the bonded interfaces and the performances of the base and the cladding material (corrosion resistance and mechanical properties) and which have excellent resistance to corrosion by seawater; a stainless-steel-clad steel obtained using the cladding material; and a process for producing the stainless-steel-clad steel. The cladding material for stainless-steel-clad steel plates is characterized in that the cladding material, after normalizing, contains, in terms of mass%, up to 0.03% of C, up to 1.5% of Si, up to 2.0% of Mn, up to 0.04% of P, up to 0.03% of S, 22.0-25.0% of Ni, 21.0-25.0% of Cr, 2.0-5.0% of Mo, and 0.15-0.25% of N, with the remainder comprising Fe and unavoidable impurities, has a critical pitting temperature (CPT), as provided for in ASTM, of 45 C or higher, and has a corrosion amount in the weld of the cladding material, as determined through a corrosion test provided for in the NORSOK standard, of 1.0 g/m2 or less. This cladding material is used to produce a stainless-steel-clad steel plate.

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