Represented by the 410 - martensite steel and ferritic steel represented type 430, ocean conditions, within a few months it will rust. This uniform corrosion can be removed by mechanical grinding. Compare popular stainless steel austenitic stainless steel is, because of its good corrosion resistance ability ( except due to stress corrosion cracking ). With the migration time, austenitic stainless steel is also dark. If for aesthetic or other reasons, this blackening or by grinding away. Rarely has uniform rust candle stainless steels in seawater, so in actual use may have to worry about.
316 2B stainless steel seamless tube
