Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Is it Galvanized or Galvannealed?
What is a simple way to tell the difference between metal that is galvanized or galvannealed?
Paul L [last name deleted for privacy by Editor]- Manchester, Iowa
GALVANNEAL Carbon steel sheet with a fully alloyed iron-zinc coating on both sides. I don't know if you would consider it simple, but it may have a different galvanic potential compared to some electrode.
Tom Pullizzi
Falls Township, Pennsylvania
Galvanizing, where 100% Zn on the top surface of the steel,where as in Galvannealed,90-93% Zn with 10-7% Fe on the top surface. The simple way to distinguish is that Galvannealed material will look like matte finish, where as Galvanized material will look like bright finish.
Tapan K Rout- Jamshedpur, India
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