i was trying to find info on a related question in a post a while back:
let me give you a little more background on my question. in the USA, on the west coast we have more stringent seismic provisions. the current code code dealing with this is FEMA 353. the precursor to this code was sac interim guideline 267/267b (
http://www.sacsteel.org/design/interimguidelines.html ). if you look at chapter 8, page 8-14, at the bottom of the page the last paragraph states that:
Except to the extent that one requires Charpy V-Notch toughness and
minimum yield strength, the filler metal classification is typically selected by the
Fabricator. Compatibility between different filler metals must be confirmed by
the Fabricator, particularly when SMAW and FCAW-SS processes are mixed.
Generally speaking, SMAW-type filler metals may not be applied to FCAW-SS
type filler metals (e.g. when a weld has been partially removed) while FCAW-type
filler metals may be applied to SMAW-type filler metals. This recommendation
considers the use of aluminum as a killing agent in FCAW-SS electrodes that can
be incorporated into the SMAW filler metal with a reduction in impact toughness
properties.
i have not seen info on this before or after this publication. I'm just looking to educate myself on this topic a little more. any elaboration on this aspect of reworking fcaw-ss with smaw would be greatly appreciated