cladding C276 to HY 80 steel - iron dilution issue
cladding C276 to HY 80 steel - iron dilution issue
(OP)
Hello -
We are cladding C276 to HY 80 and it seems that a common practice is to ensure that that the iron levels, in the welds, are below 10%. Does anyone have a reference for this rule? Any texts that mention this threshold?
Any help would be appreciated.
thanks,
Erik
We are cladding C276 to HY 80 and it seems that a common practice is to ensure that that the iron levels, in the welds, are below 10%. Does anyone have a reference for this rule? Any texts that mention this threshold?
Any help would be appreciated.
thanks,
Erik





RE: cladding C276 to HY 80 steel - iron dilution issue
Specialty Metals/Inco & the NDIC provide literature on dissimilar metals and overlay welding.
RE: cladding C276 to HY 80 steel - iron dilution issue
What is the NDIC? Also, our concern is corrosion, not necessarily cracking (though that is obviously important).
Erik
RE: cladding C276 to HY 80 steel - iron dilution issue
RE: cladding C276 to HY 80 steel - iron dilution issue
If I wanted to avoid corrosion testing, I would be looking for a maximum Fe of 7 mass% and to hit the rest of the ERNiCrMo-4 filler composition at a minimum 1 mm below the final surface of the overlay.
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: cladding C276 to HY 80 steel - iron dilution issue
"The results support a general recommendation that iron content should be below 5% for optimum performance, although corrosion behaviour was determined not by the iron level per se but by the bulk composition and the minimum alloy content developed in the solidification structure.
Iron Dilution of Weld Metals"
http:/
this is another article on this issue:
"During overlay welding on steel and welding of alloy clad steel plate iron dilution of the alloy weld metal is of
concern. Iron dilution can significantly reduce the corrosion resistance of welds made with low iron alloys like
alloy C-276."
http://
hope this help
S
Corrosion Prevention & Corrosion Control