CS & SS WELD

By ARMOFI Date 02-06-2007 17:36

For burn out pit flare line, an SS is to be welded with CS .Can anyone suggest which is the right electrode? Will E308/309 suffice or need to have E316 -(15/16)? Its an arc weld in open.

By MDG Custom Weld (***)

Date 02-06-2007 17:46

What grade is the stainless being welded?? If it's 308, weld it with that. Same goes for 309, or 316. As long as the cs is not some exotic alloy, match the filler with the stainless base.

By js55

Date 02-06-2007 17:50

309 is the kneejerk choice given that the higher alloy content assists in preventing the formation of embrittling martensite with minimal dilution. However, it is possible that more specifics of application, service, type of stainless steel, may suggest a more thorough consideration. Although 308 and 316 would not generally be a consideration for dissimilars with CS.