Stainless Steel and Applications You May Not Know

Stainless steel is an iron alloy containing chromium with a minimum of 10.5%, in addition, it also contains substances such as Carbon, Nickel, Molybdenum, Manganese … to increase wear resistance. As well as adding a few other good properties such as formability, durability, corrosion resistance, etc.

Stainless steel has 4 main groups: Ferritic, Austenitic, Martensitic, Duplex.

Ferritic: This group contains a relatively low percentage of Carbon (usually <0.1%) so they have less toughness than other stainless steels. Ferritic stainless steels are more resistant to corrosion than mild steels, cannot be heat treated, and they are magnetic. The stainless steel grades of this group are  SUS 430, 410, 409 containing chromium from 12% to 17%.

Austenitic:  This is the most popular stainless steel on the market. This group of stainless steels is added with substances such as nickel 7%, chromium 16%, carbon (C) 0.08% and other elements such as molybdenum, nitrogen … to help them have good oxidation resistance in temperature environments. high, non-magnetic, easy to shape in processing such as cutting, bending, welding, etc. The common steel grades of Austenitic are SUS 301, 304, 304L, 316, 316L, 321, 310s

Martensitic: Similar to the  Ferric group but this stainless steel group has a higher percentage of Carbon (1%), the percentage of Chromium is 11% to 13%. This group has high hardness, good bearing capacity, lower level of corrosion resistance than Austenitic, has low magnetism and formability.

Duplex: The group contains ferritic and austenite in a ratio of 50:50 so they have both Ferritic and austenite properties. Duplex has high flexibility, high durability. The steel grades in this group are LDX 2101, SAF 2304, 2205, 253MA.

Main applications

Because stainless steel consists of many types and many properties, it is used in a variety of applications in many areas of life. Therefore, more and more people use stainless steel to improve life as well as save costs and time thanks to its high durability and corrosion resistance, easy cleaning.

In household

Stainless steel is the most widely used in household appliances by making kitchen utensils such as floats, pans, knives and forks, spoons and chopsticks, brass, pots, gas stoves, etc. There are also tools for cleaning. Sanitize, deodorize, use for bathrooms such as sinks, showers, faucets. Using stainless steel for these products makes the bathroom even more shiny and clean.

In industry

Stainless steel is widely used in industries. Includes both power and light industries such as petrochemicals (chemical tanks); shipbuilding (parts such as anchors, ballasts, oars, paths and some parts of ships, sewage treatment systems, etc.); food (tools in manufacturing plants, food processing plants, drinking water plants, beer, soft drinks, canned food, thermos bottles…)

In medical

The medical industry has very high requirements in terms of hygiene and sterility. Therefore, stainless steel can meet well for these industry applications such as needles, operating room neck tools (knives, scissors, clamps …) medical beds, bedside cabinets, operating room lights, sorting bins garbage, mugs, cups, medicine (liquid) containers, laboratory instruments… Inox commonly used in the medical industry are Stainless Steel SUS316, SUS316L… Thanks to its heat-resistant and anti-corrosion properties in harsh environments.

In construction

Since stainless steel has high strength and oxidation resistance properties, it is used extensively for applications in the construction industry. Especially the outdoor area works. In addition, because stainless steel is easy to shape and bend, it can be used in a variety of ways. Today, stainless steel is also used to make roofing sheets because of its high heat resistance properties.

In decoration

Currently, the demand for beautifying houses, architectural works … is increasing day by day. Taking advantage of the good properties of stainless steel, people use them in interior decoration, gardens, buildings, public places…

In transportation

Stainless steel is also used to make equipment and vehicle parts. Such as exhaust systems, vehicle frames, wheel rims, washers, etc. Parts and equipment in train vehicles; plane; Other public transport also use stainless steel. In order to increase the life of the product, easy to clean (due to the very low staining of stainless steel).