Does a magnet stick to galvinied steel?
2006-11-30 12:02:00 · 7 answers · asked by Sara G 3 in Science & Mathematics ➔ Engineering
Can galvanized steel rust? My husband has a piece of metal a magnet sticks to it, it is rusted, and light weight. He is looking to weld on it however does not want to be exposed to the chemicals released from galvanized steel. What could it be??
2006-11-30 12:29:07 · update #1
It may have been galvanized steel but if it is now rusted, the galvanizing material has been consumed. galvanizing is a zinc layer that can be hazardous if welded. Rust is an electrochemical reaction and the zinc coating will rust away prior to the steel. if the steel is now rusting, the zinc is gone and should no longer be any more hazardous than any other welding job.
2006-11-30 13:11:47 · answer #1 · answered by MrWiz 4 · 1⤊ 0⤋
yes it does. The steel below the galvanized coating still has a relative high carbon content and magnets stick to it. Magnets do not stick to stainless steel very well though. There is a weak attraction there. If I recall correctly this is due to the relatively low carbon content and the higher content of chromium.
2006-11-30 20:07:51 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I've welded galvanized steel before and the fumes were not nice. He should be okay, but stay in a ventilated place with a fan blowing fresh air on his face and try brushing some of the coating off with a wire brush before welding.
2006-11-30 22:30:39 · answer #3 · answered by Anonymous · 1⤊ 0⤋
I will assume your magnet is a relatively strong one.
Virtually all galvanized steel sheet is magnetic.
Both galvanized iron and steel are magnetic
2006-11-30 20:06:12 · answer #4 · answered by DanE 7 · 0⤊ 0⤋
Yes
2006-11-30 20:08:14 · answer #5 · answered by adi r 2 · 0⤊ 0⤋
Don't be a sissy. Unless he's doing a lot of welding in a confined space shouldn't be a big problem.
2006-11-30 21:13:11 · answer #6 · answered by Roadkill 6 · 1⤊ 0⤋
yes it does stick.
2006-11-30 20:08:26 · answer #7 · answered by Sam P 2 · 0⤊ 0⤋