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18-10奥氏体不锈铜采用阴极保护后,使用条件不受限制;18-12含钼奥氏体不锈钢不需任何保护就能使用,但使用寿命有限(最多几个月);Z2CNDU17-16高钼不锈钢不用保护就能使用,并具有良好的抗缝隙腐蚀能力,如对金属-塑料或金属-橡胶的接触面等。对于由海水水污形成的“天然”缝隙具有良好的抗蚀能力;低碳钢的焊缝对海水腐蚀不敏感。因而毋需对此类钢进行酸洗;不锈铜采用镀铜保护后能抗海水腐蚀。
18-10 austenitic stainless steel with cathodic protection, the use of conditions is not limited; 18-12 austenitic stainless steel containing molybdenum can be used without any protection, but the service life is limited (up to a few months); Z2CNDU17- 16 High molybdenum stainless steel can be used without protection and has good resistance to crevice corrosion such as metal-plastic or metal-rubber contact surfaces. For the “natural” gap formed by water pollution of seawater has good corrosion resistance; low-carbon steel weld is not sensitive to seawater corrosion. Thus eliminating the need for pickling of such steel; stainless steel copper plating can be protected against seawater corrosion.