if rust is forming on a wheelbarrow, it is already magnetic. Rust is Iron Oxide, and a wheelbarrow must be made of iron if there is rust on it. Iron is always magnetic, so an iron wheelbarrow would be magnetic regardless of whether it had no rust or lots of rust on it.
The most common magnetic element that corrodes to form rust is iron. When aligned, atoms of iron will possess a magnetic field that will lead to interaction with other magnetic, ferrous materials. Iron will oxidize to form rust.
This metal is iron.
Iron oxide (rust) Isn't magnetic. So rusted iron will have less pure iron in it. making it less magnetic.
The iron would react with the oxygen in the water to make iron oxide, or rust.
Cannot rust. No oxygen or water.
Virtual Rust
The most common magnetic element that corrodes to form rust is iron. When aligned, atoms of iron will possess a magnetic field that will lead to interaction with other magnetic, ferrous materials. Iron will oxidize to form rust.
They can, but you have to understand that magnetism and oxidation (the process that causes rust) are unrelated.
A magnet Will pick up rust flakes And a magnet can get rusty looking however I don't think you can get much magnetism out of a piece of rust.
A Black Magnet
Iron Oxide is not magenetic, only pure iron, nickel, cobalt, and steel can be magnetic.
Nitto only makes their stems out of aluminum or Cro-Mo, a steel alloy. If you had an aluminum stem that was corroding, the corrosion would be white. By "rust" I assume that you're talking about the typically red colored iron oxide rust. If the step is showing signs of rust, but isn't magnetic according to your particular magnet, it could be that it's magnetic, but has a very weak magnetic attraction. Likely due to a high concentration of chromium and nickel, and not enough iron to attract your magnet. Probably closer to a stainless steel, which is typically non-magnetic due to it's composition, than an actual iron based steel.
Generally, yes. The lay-man's translation of something that is ferrous is "it contains iron". Substances containing iron are commonly magnetic. One good example is black rust - called ferrous oxide. Careful, though, since red rust - called ferric oxide - is NOT magnetic.
it will probably take at least 5 minutes for a needle to rust unless it is copper.
Check your rear pads and brake calipers
You have to sand ALL of the rust off then apply a primer and colorcoat.
This metal is iron.