Is there a weak magnetic property in the stainless steel wire mesh?

Stainless steel wire mesh can also be used as a decorative net. It uses the austenitic 304 material, which is generally non-magnetic or weakly magnetic. However, magnetic properties may occur due to chemical composition fluctuations or processing conditions, but this cannot be considered as a counterfeit or a failure. What is the reason?

It is mentioned above that austenite is non-magnetic or weakly magnetic, while martensite or ferrite is magnetic. Due to segregation or improper heat treatment during smelting, austenite 304 is not a small amount of martensite in stainless steel wire mesh. Or ferrite tissue. Thus, the 304 stainless steel mesh will have weak magnetic properties.

In addition, the 304 stainless steel wire mesh is cold worked, and the microstructure is also transformed into martensit

e. The greater the cold work deformation, the more martensite transformation and the greater the magnetic properties of the steel. Like a batch of steel strips, it produces Φ76 tubes with no obvious magnetic induction and produces Φ9.5 tubes. Due to the large deformation of the bending, the magnetic induction is obvious. The rectangular tube produced is larger than the round tube, especially the angled part, and the deformation is more intense and the magnetic is more obvious.

Stainless steel mesh with weak magnetic properties is normal

1. Martensite or ferrite type: such as 430, 420, 410, etc.;

The austenite type is non-magnetic or weakly magnetic, and martensite or ferrite is magnetic.

2. Austenitic type: such as 304, 321, 316, 310, etc.;