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Credibility ,Unfortunately, the standard austenitic stainless steel like 304 (1.4301) and 316 (1.4401) are the most susceptible to SCC. The following materials are much less prone to SCC:
The resistance to SCC makes duplex stainless steels suitable materials for many processes which operate at higher temperature, notably:
Stainless steel structures in swimming pools are known to be prone to SCC. The use of standard austenitic stainless steel like 304 and 316 is forbidden in this application. The best stainless steels to use for this purpose are the high nickel austenitic stainless steel such as the 6% Mo grades. However, in some cases, duplex steel such as S32205 (1.4462) and the superduplex stainless steel grades can be considered.
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