Why is the surface of stainless steel tubular heater magnetic?
Many people have asked us, why is the surface of stainless steel tubular heater magnetic? Here to introduce to everyone, we all know that the tubular heater is heated by heating the resistance wire in the tube, and then conducted by the magnesium oxide powder. Resistance wire is more common and the most common one is iron-chromium-aluminum wire. The iron-chromium-aluminum wire contains high iron metal, so it has high thermal efficiency and excellent temperature resistance.
I think everyone should have understood why the surface of the stainless steel tubular heater is magnetic. Although it can pass through the magnesium oxide powder, it can still attract magnets because its resistance wire contains iron. However, the magnetism at this time is different from the magnetism of direct iron absorption, which is only very weak.
So I tell my friends here that it is normal for the stainless steel electric tubular heater to have a weak magnetism. Do n’t panic.