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How to demagnetise stainless steel?

Q. Hi I just wanted to know how can I eliminate magnetism stainless steel from type 410. I am working in the abrasives industry.

Anubhav Bhatnagar
working in abrasives industry - Delhi, India
March 24, 2008

A. Type 410 stainless steel is magnetic and there is nothing you can do to make it such that a magnet will not attract it. But if you are saying that the stainless picks up magnetism, such that it attracts iron grits and dusts, there are electrical degaussers which will remove that magnetism; they vary by the size and shape of the parts in question. Good luck.

Ted Mooney,
Ted Mooney, P.E.
Striving to live Aloha - Pine Beach, New Jersey

A. Dear Anubhav Bhatnagar
it is presently not possible to eliminate magnetism from type 410 stainless steel. If you use type 304 than your problem is solved.

Umashankar Gupta
- Hyderabad, India

Q. We are using SS 304, 1 mm Thick Non Magnetic Material. On Cold Deep Drawing it has developed Magnetism, How do we remove Magnetism totally ? the Product is 97 mm Long and 94 mm Width.

Request Solution


Dinesh Kothari
ENGINEERING - Mumbai, Maharashtra, India
November 19, 2010

A. Hi, Dinesh.

If the 304SS attracts ferrous metals, degaussing with a degaussing coil should solve it. I believe the coils can be built into the machinery and automated if manual degaussing is too labor intensive. Google for "magnetism removal" and you will find a number of technical articles and a number of degaussing machine suppliers. However if you are concerned that the 304SS is attracted by a magnet after cold drawing, the solution is to anneal the items to remove the cold working. Note however that although you can greatly reduce its attraction to magnets by annealing but probably cannot "totally" stop i. Good luck.


Ted Mooney,
Ted Mooney, P.E.
Striving to live Aloha - Pine Beach, New Jersey

Q. Dear members and readers
Steel 201 normally has only a little magnetism, but after some processes, it becomes more magnetic. How to make it again low magnetism? A person does some processes in acids and 90% of the goods become a little magnetic. Can anybody help with which acids or processes are used?

Kashif Ahmed
plating - Pakistan
June 2, 2011

A. Hi
If you do cold working on ss 201, you can do Annealing to make it non magnetic.
Ss 201 in its normal form is non magnetic.

Masoud majd
- Tehran, Iran
October 18, 2023

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