How To Tell If Metal Is Galvanized Welding. Hot-dip galvanized steel maintains its natural matte-grey appearance for many years in atmospheric conditions. Hot dip galvanizing gives the large kinda blochy crystal structure or pattern that is most readily identified as galvanized metal.
It is covered in a zinc coating that is highly dangerous for humans when its ingested. To find out if steel is galvanized try running a disk grinder over it. Assess the results of your tests and look closely at the color of your samples.
Electro-galvanizing is very popular it puts a thinner and more controled layer down on the steel and cosmetically looks better it also paints better than hot dip.
As a result the unprotected bare. When people mention galvanised metal they are referring to whats known as steel that has been dipped in a protective zinc coating to protect the alloy against oxidation a process that causes rust and other issues. Similar to galvanized steel is galvanneal steel. G alvanizing is the application of a zinc coating to a ferrous material.