CN
Stainless steel filter can use magnet test whether magnetic release time stainless steel filter with stainless steel wire is usually used for decoration of mostly austenite stainless steel tube plate 304 raw materials, generally is non-magnetic or weak magnetic, but due to exercise form chemical composition fluctuations or different processing status also probably flush magnetic, but it can't think is fake or differences, What is the reason for this? Austenite is non-magnetic or weakly magnetic, martensite or ferrite is magnetic. In order to completely eliminate the magnetism of 304 steel caused by the above reasons, the austenite can be arranged by high-temperature solution treatment, and then the magnetism can be eliminated. Stainless steel variety, at room temperature according to the arrangement structure can be divided into several categories: people often think that magnet adsorption stainless steel, verify its inferior and authenticity, no magnetic absorption, that is good, stainless steel wire worthy of the name; The person that suck has magnetism, think is impostor fake. Because of the large deformation of the ling bend, the magnetic sensation is obvious. The deformation of the rectangular tube is larger than that of the round tube, especially the corner part, and the deformation is more severe and the magnetism is more obvious. Truth, this is an extremely one-sided, unrealistic way of identifying errors. The above mentioned austenite is non-magnetic or weak magnetic, and martensite or ferrite is magnetic, due to the improper composition segregation or heat treatment of exercise, will form a few martensite or ferrite arrangement in 304 stainless steel austenite. In particular, due to the above reasons formed 304 stainless steel magnetic, and other raw materials of stainless steel, such as 430, carbon steel magnetic completely is not a unified level of other, that is to say, 304 stainless steel magnetic has been shown is weak magnetic.