Both 304 and 3 16 stainless steels are food-grade stainless steels with certain safety performance, but the corrosion resistance and high temperature resistance of 3 16 stainless steel are better than that of 304 stainless steel.
The difference between food grade stainless steel 3 16 and 304;
1, acid and alkali tolerance is different: the biggest advantage of 304 stainless steel is acid and alkali resistance, high density and no bubbles in polishing.
2. Different application scope: 304 stainless steel is widely used in food equipment, and 3 16 stainless steel is commonly used in medical treatment, machinery, petroleum, gun barrel, weapons, food and so on.
3, the price is different: 3 16 stainless steel itself is more expensive than 304.
3 16 stainless steel is a kind of stainless steel. Due to the addition of Mo element, its corrosion resistance and high temperature strength are greatly improved. High temperature resistance can reach 1200- 1300 degrees, and it can be used in harsh conditions.
Food-grade stainless steel refers to the part of food machinery that comes into contact with food and must meet certain food safety requirements. Because the food production process uses a lot of acid and alkali, and stainless steel contains chromium, unqualified stainless steel will dissolve out chromium at various prices, which is toxic; It also limits the content of alloy impurity elements such as lead and cadmium.
3 16 and 304 resolutions:
1, magnet
When buying 3 16 stainless steel pot basin, you can bring a magnet. The difference between 3 16 stainless steel and 304 stainless steel can be seen through the magnet. 3 16 stainless steel is less magnetic than 304 stainless steel. It can be said that 3 16 stainless steel has no magnetism. If you find that stainless steel is very magnetic when you buy it, it may be.
2, potion.
These two kinds of stainless steel can also be distinguished by chemical methods. Generally, Ni8 chemistry is used for 304 stainless steel, and No2 chemistry is used for 3 16 stainless steel. When distinguishing by chemistry, it is mainly to observe the change of color. When using Ni8 chemistry to distinguish 304 stainless steel, it is 304 stainless steel that turns red, and vice versa. When distinguishing 3 16 stainless steel from No2 chemical substances, it is 3655.
3. Spectrum.
Spectroscopy is a professional method. Every metal has its own spectrum. The spectrum of 304 stainless steel is different from that of 3 16 stainless steel. It can be simply distinguished by spectroscopy, but this method is too professional. If you don't know much about this method, it is suggested that you can find a professional appraisal agency.