Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
-----
Welding between dissimilar metals
It is correct to make a continuous welding between a stainless steel and galvanized steel sheets?
Luis A Alvarez- Daytona Beach, Florida
2007
This sounds like a VERY bad idea for a great many reasons.
Not least, galvanised sheet is never welded because of the zinc fumes which are given off, it also destroys the galvanising in the joint area. The mix of metals resulting from the proposed joint sounds like a corrosion nightmare.
Geoff Smith
Hampshire, England
2007
Another reason why it is a VERY bad idea is that zinc rapidly embrittles austenitic stainless at high temperatures (as in welding & fires). The zinc penetrates grain boundaries and forms NiZn, sometimes causing catastrophic failures.
Ken Vlach [deceased]- Goleta, California
Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.
2007
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
Q, A, or Comment on THIS thread -or- Start a NEW Thread
Q, A, or Comment on THIS thread -or- Start a NEW Thread