铬-镍马氏体不锈钢1Cr17Ni2(AIS1431)的耐蚀性
见表1。
表1 1Cr17Ni2的耐蚀性
介质条件 | 腐蚀速度 /mm/a | 介质条件 | 腐蚀速度 /mm/a | ||||
介质 | 浓度,% | 温度,℃ | 介质 | 浓度,% | 温度,℃ | ||
硝酸 | 10 | 50 | <0.1 | 氢氧 化钠 | 20 | 沸腾 | <0.1 |
10 | 85 | <0.1 | 30 | 20 | <0.1 | ||
30 | 60 | <0.1 | 30 | 100 | <1.0 | ||
30 | 沸腾 | <1.0 | 40 | 90 | <1.0 | ||
50 | 50 | <0.1 | 50 | 100 | <1.0 | ||
50 | 80 | 0.1~1.0 | 60 | 90 | <1.0 | ||
50 | 沸腾 | <3.0 | 磷酸 | 5 | 20 | <0.1 | |
60 | 60 | <0.1 | 5 | 85 | <0.1 | ||
1 | 20 | 3.0~10.0 | 10 | 20 | <0.30 | ||
5 | 20 | >10.0 | 25 | 20 | 3.0~10.0 | ||
10 | 20 | >10.0 | 盐酸 | 1 | 20 | <3.0 | |
醋酸 | 10 | 75 | <3.0 | 2 | 20 | 3.0~10.0 | |
10 | 90 | 3.0~10.0 | 5 | 20 | >10.0 | ||
15 | 20 | <1.0 | 氢氧化钾 | 25 | 沸腾 | <0.1 | |
15 | 40 | <3.0 | 50 | 20 | <0.1 | ||
25 | 50 | <1.0 | 50 | 沸腾 | <1.0 | ||
25 | 90 | <3.0 | 68 | 120 | <1.0 | ||
25 | 沸腾 | 3.0~10.0 | 溶体 | 300 | >10.0 | ||
氢氧 | 10 | 90 | <0.1 | 硫酸铝 | 10 | 50 | <0.1 |
化钠 | 20 | 50 | <0.1 | 10 | 沸腾 | 1.0~3.0 |
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