Fabrication process of 316 Stainless Steel Pipe



What is Stainless Steel 316?

 

Stainless steel is a steel alloy containing at least 10% chromium, which is a corrosion resistant metal. Through the addition of chromium to stainless steel, a thin layer of metal oxide is created over the metal’s surface that protects it from the attack of corrosion-causing substances.

With a content of 16-18% chromium, 10-14% nickel, 2 to 3% molybdenum, and a small amount of carbon, stainless steel 316 is a popular stainless steel grade. When compared with other grades of stainless steel, stainless steel 316 has a greater corrosion resistance due to the presence of molybdenum. Other alloys further enhance its properties.

 

There are many characteristics and properties of stainless steel 316 that make it one of the two most widely used stainless steel grades after stainless steel 304. It is used in corrosive environments such as chemical plants, refineries, and marine engines. Stainless steel’s melting point falls between 2550 and 2790°F or 1400 and 1530°C. AISI 316 stainless steel has better corrosion resistance than 304 stainless steel and has good corrosion resistance in the production of pulp and paper.

 

Before using stainless steel tools or work surfaces that remain exposed to the environment, it is very important that they are thoroughly cleaned before use in order to prevent cross contamination of stainless steel by easily corrosion metals that could discolor the surface of the fabricated product. Fabrication of stainless steels should be done using tools specially designed for stainless steel materials. It is necessary to take these precautions to avoid cross contamination by easily corroded metals that could discolour the surface of the manufacture of the fabricated item due to their easy corrodibility.

 

A stainless steel 316L has a lower carbon content and it is ideal for applications where the metal might be susceptible to sensitization risks. In addition, stainless steel 316H, which is a higher carbon steel, offers greater thermal stability and creep resistance. The stabilized grade 316Ti is also widely used in stainless steel 316. In addition to being resistant to intergranular corrosion, stainless steel 316Ti is more stable than other grades of stainless steel 316.

 

Passivation occurs when metals take up the property of becoming “passive”, which means that they become less reactive to corrosive compounds found in the air and process fluids, causing them to become unreactive to oxidation. When stainless steel is passedivated, the surface of the steel is coated with chromium oxides that are formed by exposing it to air.

The alloy is subjected to a chemical treatment in order to enhance the formation of the passive film, where it is thoroughly cleaned by submersion of it in a bath of acidic passivation in order to enhance the development of the film of nitric acid. This layer will be created by removing contaminants, such as exogenous iron or free iron compounds, which would interfere with the process of creating a passive layer, for example.

For more information visit 

https://tronixalloys.com/fabrication-process-of-316-stainless-steel-pipe/

 

#steel #pipe #manufacturer #supplier #stockist #stainlesssteel #tronixalloys 

 



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