By 803056
Date 11-01-2015 16:15
Edited 11-05-2015 11:52
What is your choice for base metal? You will have corrosion any time there is a chemical mismatch between the base metal and the weld deposit in a wetted environment. In your case, multipass welds in which the interpass temperature is not controlled can provide an environment where the HAZ can become sensitized. That can result in stress corrosion and stress corrosion cracking.
Al