Since the metal has been incepted, stainless steel has become one of the popular metal for different purposes. Whether it for household or industrial use, stainless steel has never disappointed when it comes to its multiple characteristics.
Stainless steel has a low corrosion rate, making it efficient for the piping system. Pipes made with stainless steel can withstand extreme pressure and high temperature that makes it ideal for industrial use. The best 316 stainless steel tube is the perfect choice for a piping system as it provides superior protection and coverage. It is essential to understand that stainless steel has different types that are different in its chemical composition and characteristics. Before investing in any stainless steel, it is necessary to understand its various forms.
Types of Stainless Steel
Stainless steel is a preferred metal for its unique characteristics. From architects to contractors, everyone uses stainless steel for different purposes. Every stainless steel has a different set of features addressing different purposes. There are majorly four different types of stainless steel that you must be acquainted with. Take a look at different types of stainless steel that you can use for various purposes:-
Ferritic Stainless Steel
Similar microstructure to carbon and some low alloy steel, ferritic stainless steel is made with chromium and a portion of carbon as well. Ferritic stainless steel is relatively used less for welding purposes as it lacks strength in welds. There are plenty of industries that use ferritic stainless steel where welding is not necessary. Ferritic steel cannot be hardened with heat or any other pressure; on the other hand, it can be used in seawater where it is combined with molybdenum for better strength. Additionally, it is one of the magnetic stainless steel that you would find. Ferritic stainless steel is preferred by industries for its resistance to stress corrosion.
Austenitic Stainless Steel
It is one of the standard types of stainless steel that is readily available in the market. The microstructure of austenitic stainless steel comprises of nitrogen, nickel and manganese. The structure of this metal is similar to what looks like regular stainless steel. It has a higher temperature tolerance enhancing its weldability and formability. Though austenitic stainless steel is not highly corrosion-resistant like other stainless steel forms. A corrosion-free layer can be added by including nitrogen, chromium and molybdenum in its microstructure.
You cannot possibly harden the austenitic stainless steel with heat, but you can increase the toughness and ductility by tightening it to high temperature. Though austenitic stainless steel is non-magnetic, in certain circumstances and around specific conditions, it can showcase some magnetic properties. Austenitic stainless steel is one of the commonly used metals in industries as well in the household.
Martensitic Stainless Steel
It is quite similar to ferritic stainless steel as it is based on chromium along with a higher concentration of carbon levels. Just like carbon and other low alloy steels, martensitic stainless steel can be tempered and hardened.
Generally, this type of stainless steel is used in the areas with a need for moderate level corrosion-resistant and high strength. It considered in the category of the magnetic type of stainless steel. Hence, it is low on formability and weldability. Martensitic stainless steel is used in industries to create products of steel sheets and plate. As the characteristics of martensitic stainless steel are quite familiar to ferritic steel, the treatment and purpose of both the stainless steel type are almost similar.
Duplex Stainless Steel
As the name suggests, the duplex stainless steel imbibes half the microstructure of austenitic steel and half of the ferritic steel. Though it comprises equal microstructure of both the type of stainless steel, the duplex has more strength and durability than both. It also has a high stress corrosion cracking resistance than any other stainless steel type.
Lean duple is a subtype of the duplex stainless steel that has a similar corrosion resistance of austenitic steel. Super duplex stainless steel is its advanced version that has higher and relatively better corrosion resistant than the austenitic steel. Additionally, this type of stainless steel is weldable as long as you can put them into good use.
The Bottom Line
Stainless steel is undoubtedly one of the strongest durable metal available in the market. It possesses all the important characteristics that make it an ideal choice of metal for industrial purposes. From being low on corrosion rate to being a versatile metal, stainless steel is preferred for all the valid reasons.
The above mentioned are some of the common types of stainless steel that are available in the market. Each stainless steel type has its own characteristics and chemical composition that makes it distinctive from others. It is essential to understand the different forms of stainless steel before investing in any. Every stainless type serves different purposes with its unique characteristics.