So how do you tell the difference between China Stainless Steel Sink ? To tell the truth, it is difficult to distinguish with the naked eye. 201 stainless steel will still rust if it takes a long time. Those who sell two or three hundred yuan on the Internet, shouting that they are 304 stainless steel, also hit 304 stamp on the tank, it is recommended that everyone buy carefully. The difference between welding and integral molding. The one-piece process is more difficult, so the price is higher. However, in terms of quality, the thickness of the welded water tank steel plate is more uniform, so it is not said that the integrally formed water tank must be better than the welded one. Nowadays, the market is basically a one-piece sink, and we don’t have to worry about it anymore.
People often think that magnets adsorb stainless steel, verify its pros and cons and authenticity, do not absorb non-magnetic, think it is good, the goods are genuine; if the attractor is magnetic, it is considered a counterfeit fake. In fact, this is an extremely one-sided, unrealistic way of distinguishing mistakes. There are many types of stainless steel, which can be divided into several categories according to the structure at room temperature:
1. Austenitic type: such as 304, 321, 316, 310, etc.;
2. Martensite or ferrite type: such as 430, 420, 410, etc.; austenite type is non-magnetic or weak magnetic, martensite or ferrite is magnetic. Most of the stainless steels used for decorative tube sheets are austenitic 304 materials, which are generally non-magnetic or weakly magnetic. However, magnetic properties may occur due to fluctuations in chemical composition or processing conditions due to smelting, but this cannot be considered as Counterfeit or unqualified, what is the reason? Because austenite is non-magnetic or weakly magnetic, and martensite or ferrite is magnetic, a small amount of martensite or ferrite in austenitic 304 stainless steel is caused by segregation or improper heat treatment during smelting. . Thus, 304 stainless steel will have weak magnetic properties.
In addition, 304 stainless steel is cold-worked, and the microstructure is also transformed into martensite. The greater the cold work deformation, the more martensite transformation and the greater the magnetic properties of the steel. This tells us that if the stainless steel strip is weakly magnetic or not magnetic at all, it should be judged as 304 or 316 material; if it is the same as the magnetic steel, it shows strong magnetism, because it is judged not to be 304 material. Buy stainless steel products should choose the products of reputable manufacturers, do not be cheap, beware of being fooled.
information about China Stainless Steel Sink : https://www.afastainlesskb.com/product/stainless-steel-sink/