不锈钢304含铬量应是多少才达标,谢谢! 不锈钢管含铬量一般不能低于多少

304\u4e0d\u9508\u94a2\u7684\u542b\u94ec\u91cf\u662f\u591a\u5c11

304\uff0c\u56fd\u6807\u65b0\u724c\u53f706Cr19Ni10\uff0c\u94ec\u542b\u91cf\u4e3a18.00%-20.00%\uff1b\u56fd\u6807\u8001\u724c\u53f70Cr18Ni9\uff0c\u94ec\u542b\u91cf\u4e3a17.00%-19.00%\u3002
\u5e0c\u671b\u5bf9\u4f60\u6709\u7528\u3002

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304,国标新牌号06Cr19Ni10,铬含量为18.00%-20.00%;国标老牌号0Cr18Ni9,铬含量为17.00%-19.00%。

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