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铁素体不锈钢
[作者:aowl] [日期:19-01-31] [浏览次数:] [来源:]

铁素体不锈钢
Ferritic stainless steel
含铬15%~30%。其耐蚀性•●、韧性和可焊性随含铬量的增加而提高,耐氯化物应力腐蚀性能优于其他种类不锈钢,属于这一类的有Crl7•●、Cr17Mo2Ti•●、Cr25,Cr25Mo3Ti•●、Cr28等。铁素体不锈钢因为含铬量高,耐腐蚀性能与抗氧化性能均比较好,但机械性能与工艺性能较差,多用于受力不大的耐酸结构及作抗氧化钢使用。这类钢能抵抗大气•●、硝酸及盐水溶液的腐蚀,并具有高温抗氧化性能好•●、热膨胀系数小等特点,用于硝酸及食品工厂设备,也可制作在高温下工作的零件,如燃气轮机零件等。
It contains 15%-30% chromium. Its corrosion resistance, toughness and weldability increase with the increase of chromium content. The resistance to chloride stress corrosion is better than other kinds of stainless steel. Crl7, Cr17Mo2Ti, Cr25, Cr25Mo3Ti and Cr28 belong to this category. Ferritic stainless steel has good corrosion resistance and oxidation resistance because of its high chromium content, but its mechanical and technological properties are poor. It is mostly used in acid-resistant structure with little stress and as anti-oxidation steel. This kind of steel can resist the corrosion of atmospheric, nitric acid and brine solution, and has the characteristics of www.penjiaoji.com.cn www.rerongjiaoji.net.cn www.gangjiegou.net.cn www.zhugangjian.net.cn www.gangzhujian.cn www.zhuzaochang.net.cngood oxidation resistance at high temperature and low thermal expansion coefficient. It can be used in nitric acid and food factory equipment, and can also be used to make parts working at high temperature, such as gas turbine parts.

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