Thank you David and Weldstan,
Yes I mean SA-285-C, sorry for the typo. What I understand from your response is that it is ok to weld the SA-516-70 cup to SA-285-C body of the vessel. I know that SA-285-C has a lower yield stress than SA-516-70, so which welding consumable should I consider, E7018?
I have a sulfuric acid pressure vessel that I need to replace its cup due to a blister in it. The original material of the vessel is SA-258-C. The manufacturer has SA-516 grade 70 material available in hand. Would it be ok to use SA-516-70 for the vessel cup and is there any considerations that...