Dear All, I am working as a static equipment engineer for refinery&petrochemical projects. As per Owner requirements All SS tray assemblies to be pickled & passivated. Howeever the tray vendor claims it is not applicable for SS410S as pickling & passivation may lead to white & brown pathches on trays. Please clarify if pickling & passivation for SS410S (martensitic grade) materials is applicable or not? Awaiting your prompt response. Yours Salman Hussain,Baroda,India. |
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