i was once told to always bring a magnet when purchasing jewelry or stainless steel goods. this is to make sure the metal isn‘t iron.with that said, is iron the only magnetic metal?if not, what other metals are magnetic?
Any ferrous metal is magnetic. Ferris metals rust when they oxidize. Some stainless steel is magnetic (or slightly so) this stainless is usually used for a cutting edge that needs to stay sharp (it is slightly harder) sometimes these metals are dipped to reduce the ferris particles on the surface. (rust prevention) Be careful though there are a lot of cheap metals (and materials) that are not magnetic also like aluminum, glass and plastic. brass and copper are also not magnetic and used a lot in jewelry so be carefulR
I have to assume that you are using hard copper and not soft copper. You might try heating it with a propane torch to help soften it up a bit. Again I have to assume that the tubing has nothing in it. They do make what is known as a bending spring which slide over the tubing and helps support the walls to keep from kinking. You might also try the bending tool that electricians use to bend conduit If the bend does not have to be to sharp should not be to much trouble. If you are using soft copper, should be no problem as it comes in a coil, and it might be better to use the soft copper if this is a new water line or an add on.
Non metals aren't magnetic. Only ferrous types of metals are magnetic.
Magnets will stick to ferrous metals (those which contain iron -- chemical symbol Fe). Stainless steel also is ferrous, but for some reason magnets don't always stick to it. Ferrous metals are the only one I can think of.perhaps others can expand this list.
If this is rigid copper pipe, it will bust open before you can bend it that far. Anytime I have tried to bend rigid copper it has split on me.