Material Characteristics of Stainless Steel Nuts

First of all, let's look at the material characteristics of stainless steel nuts. The stainless steel material has good stretchability, its hardness is much smaller than that of carbon steel, and the stainless steel itself has strong corrosion resistance and rust resistance. Once the surface of stainless steel nut is worn. Its stainless steel surface will produce a thin oxide layer to prevent corrosion.

Nut rusting generally refers to the oxidation phenomenon caused by the combination of steel and oxygen in the atmosphere. Common steel nuts are easy to rust, while stainless steel nuts are relatively not easy to rust. This is because the chromium contained in stainless steel nuts has already reacted with oxygen before the combination of iron and oxygen. The surface of stainless steel nuts forms a very thin film - non-dynamic coating (oxidation coating). That is to say, the film group stops the chemical reaction between iron and oxygen. In addition, the thickness of the film is 1-3 nm (1 nm is equal to one billionth of 1M), so it is very thin. In addition, nickel can also play the role of strength coating. Moreover, this non-dynamic coating also has self-repairing regeneration function. Even if it is destroyed in the process of processing, chromium can react with oxygen in the air again, so that the film can be regenerated and the damaged part can be repaired completely.

Copper nut

The different hardness of stainless steel nuts results in their different uses. They are generally used as small screws in daily life, but also as vehicle nuts and compression nuts. They are widely used in normal life. In appearance, the screw thread is generally divided into fog spring line and bright nut, fog nut hardness is higher than the hardness of bright nut, can be used as hanging line, generally used in products with low appearance requirements and high elasticity requirements. The brands of stainless steel wire are currently on the market: SUS316L, 302 HQ, 310S, 309S, 304, 301, 202, 201, 667, etc. In the screw production, we mainly use 302 HQ, 304. There are also some nut products 201 and 667 which are not used in harsh environment.Stainless steel nuts are melted in molten steel according to chemical composition requirements; hot rolling; annealing and pickling to obtain stainless steel plate blanks; coating and drying; cold drawing; cleaning and drying with neutral activator; quenching; tempering; coating and drying; drawing into stainless steel nuts. The high performance stainless steel screw busbar has the advantages of energy saving, environmental protection, high corrosion resistance, high elasticity and high toughness. The preparation method and process are advanced and simple, and the production cost is low. Generally, the surface before production is not magnetic, but after the cold pier of the screw machine, there will be some weak magnetic, which is normal. If some special requirements must not be magnetic, must be dealt with through the process of demagnetization, the price is about 5 yuan/kg, can be thoroughly demagnetized.Blind hole nut