The weaker metal will not attract the magnet but the addition will.
Do magnets stick to sheet metal.
Wood and metal frames are not necessary.
Magnets will not stick to aluminum copper brass etc.
Steel is an alloy of iron and carbon which makes it ferromagnetic due to its high iron content.
30 gauge sheet can usually be found at building supply stores in sections that carry heat ventilation and air conditioning ducting.
Stainless steel however does not attract a magnet.
Magnet sheets with adhesive 8 x 10 inch magicfly pack of 15 flexible sticky magnet sheet crafts photos and more easy peel and stick by magicfly 4 6 489.
Even though the galvanization process involves coating the steel with zinc a nonmagnetic metal the magnetic properties of the steel are not hindered by the zinc coating.
Galvanized steel is made by dipping steel into molten zinc.
The academic term for materials that do not attract magnets is diamagnetic.
The sheet can be smaller than the frame.
That is why you won t see a magnetic business card sticking to a wooden desk for example.
We use inexpensive plastic frames.
About the tin sheet.
Most people know from experience that magnets do not stick to non metal materials such as wood plastic fiberglass and textile.
Magnets stick to any metal that contains iron cobalt or nickel.
Finally make sure that when you order your item you tell the provider you are making a magnetic board and that you require the material to be flat and free of any surface imperfections or dents.
Iron is found in steel so steel attracts a magnet and sticks to it.