Corrosion Resistance Of 316L Sanitary Stainless Steel Pipe

In the field of sanitary stainless steel products, 304 and 316L stainless steel are the most common materials, such as 316L sanitary stainless steel tubings, 304 sanitary ball valves.

316L stainless steel food grade tubing

316L stainless steel food grade tubing

The difference between 304 and 316:

1. The metal composition

304 stainless steel contains an average of 9% nickel, while 316 stainless steel contains an average of 12% nickel (Ni). Nickel in metal materials can improve high temperature durability, improve mechanical properties, and improve oxidation resistance. In addition, 316 stainless steel also contains molybdenum (Mo), which is not available in 304, to further enhance the corrosion resistance of 316 stainless steel. Therefore, the amount of nickel (Ni) and molybdenum (Mo) in the material directly affects the integration of the material. performance.

2. The performance

304 stainless steel cannot be strengthened by heat treatment, cannot be quenched like carbon steel, and has no magnetism. The 316 stainless steel has stronger acid and alkali resistance and high temperature resistance than 304. It is mainly used in the food industry and surgical equipment, and 316 stainless steel basically does not have the phenomenon of thermal expansion and contraction. This remarkable point is extremely important for precision parts. .

All in all, 316 stainless steel has better corrosion resistance, high temperature resistance and strength than 304 stainless steel. It can be used under more severe conditions, but the cost is higher than 304 stainless steel.

Sanitary 316L stainless steel tubings are relatively high-quality, and it is also a pipe with a higher price than ordinary pipes. It is true, but this is only part of it. So, besides these, what else?

The use of 316 sanitary stainless steel tubes is greater than 304 and 304L in terms of corrosion resistance, which is suitable for metal tubes used in medical applications, such as water supply pipes, biopharmaceuticals, chemical liquid production, purified water, medical gas, medical stents… In addition to medical use, they are also used in seawater desalination, because corrosion-resistant pipes must be able to withstand corrosion and rust.

The inner wall of the 316 sanitary stainless steel pipe is in a smooth state, and the media (water, gas, solid) is smooth and easy to clean. It can avoid the growth of bacteria from the perspective of sanitation, and ensure that the passing materials are clean, free of impurities, and meet the sanitary class. The medium used.

There are many types of connected sanitary pipe fittings, which are sealed and leak-proof, which reduces the maintenance and repair of the equipment used, and avoids the problem of waste and cost increase. As for the specifications and stainless steel water tubes, the specifications are above DN15-DN300, and the thickness is also the same.