How does stainless steel become magnetic

Stainless is a widespread group of metals. Its name was generated by the term of steel alloys that had a minimum of 10.5% chromium content in it. The stainless feature of stainless steel is due to the chromium and also it makes the steel corrosion-resistant.

A very thin layer of the chromium-rich oxide layer is developed on the surface of the metal. The layer acts as protection against rust and keeps the metal safe. Stainless steel is used for developing a variety of products like tubes, stainless steel pipes, and fittings, marine equipment, etc.

Are stainless steel non-magnetic?

The answer to this is very contemplating as some stainless steel is magnetic and some are not.

It varies according to the stainless steel grade.

In stainless steel, there is non-magnetic and magnetic steel based on their nature. The following varieties of stainless steel are typically magnetic:

  • Ferritic stainless steel
  • Martensitic stainless steel.
  • Duplex stainless steel

They generally have very large iron content in them and which makes them magnetic.

Though, the most conventional stainless steels that are non-magnetic are ‘austenitic’ – this holds an essential chromium content, and nickel is also added. It is the nickel that alters the physical composition of the steel and makes it non-magnetic.

Stainless steel is also made out of iron but the content of nickel does most of the work and makes them non-magnetic.


Therefore, the magnetic features of stainless steel are very reliant on the elements added into the alloy, and especially, the addition of nickel can replace the structure from magnetic to non-magnetic.

What happens when the metal becomes non-magnetic?

The magnetic material can have a tremendous influence on the planned performance of the material depending on its application. If a material needs to be quickly sorted from other materials, then having one material be magnetic can make this a very smooth sorting method to carry out. When welding or performing other metal fabrication processes, the magnetic material may create concerns to arise. Electrical currents can also function abnormally in magnetic materials.

Therefore, stainless steel is most preferred in such areas which are prone to electricity and moisture.

Where to find the best stainless steel?

Rhinox is a stainless steel press fittings manufacturer and is currently active globally. A wide range of press fittings, tubes are available. They also customize the plumbing services and provide the best services with the best quality. Check out their website to know more about the innovation they make in their products and the services provided by them.

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