Categories, types, grades of stainless steel

Stainless steel of the 200 seriesare chromium-manganese-nickel austenitic steels, similar in their properties to AISI 301. In the annealed state, they completely retain the austenitic structure. After cold deformation and strengthening, these steels are

Stainless steel of the 300 series - is a chromium-nickel austenitic steel. Such an element as nickel stabilizes the austenitic phase. The presence of nickel in these grades leads to the fact that the austenitic phase is preserved at temperatures from

400 series stainless steel - is a grade of ferritic and martensitic stainless steel with a

Stainless Steel 500 Series

500 series stainless steels are made up of heat-resistant chromium alloys. The 500 series is not very large and is not widely used yet. The grades in this series contain a certain percentage of chromium, which prevents deformation under heat. 500 series steels are used in applications where heat is a concern. In addition to chromium, they mostly also

600 Series Stainless Steel

600 series stainless steel - is a series of stainless steel alloys that have excellent mechanical properties and offer the desired combination of high strength and good machinability. 600 series stainless steel alloys are used where resistance to corrosion and high temperatures is required. Another

Acid-resistant stainless steel - is a high-alloy alloy, which in addition to chromium and nickel includes such alloying elements as molybdenum and titanium. Together, these elements form an acid-resistant material with a uniform structure. Such grades of stainless steel have all the necessary physical, chemical, mechanical and technological properties. They are intended for use at

Stainless steel alloys - are macroscopically homogeneous metallic corrosion-resistant materials consisting of a mixture of two or more chemical elements with a predominance of metallic components. Alloys consist of a base, small additives, alloying and modifying elements specially introduced into the alloy, as well as unadded impurities.

List of stainless steel

Austenitic stainless steel - austenitic grades of stainless steel contain chromium and nickel. It is nickel that increases deformability and corrosion resistance. These steels are non-magnetic. They are well suited for heat treatment and welding. With an increase in the content of chromium and nickel, austenitic stainless steel has better resistance to oxidation at high

Cryogenic cold-strength cold-resistant stainless steel - is a special stainless alloy that does not lose its mechanical, physical, technological properties over a long period of time under the influence of low (cryogenic) temperatures. They are usually used in arctic regions, as well as for the processing and storage of liquid gases such as liquid nitrogen and liquid helium.

Duplex stainless steel - is an alloy with a mixed ferritic-austenitic structure. The chromium content in such a grade is at the level of 18 - 28%, nickel within 4.5 - 8%. Additional alloying elements in them are molybdenum, copper, titanium, niobium. The chemical composition of these stainless steel grades is balanced so that the ratio of austenite and ferrite after optimal heat treatment is approximately 1 to 1.

Ferritic stainless steel - ferritic grades of stainless steel are similar in properties to carbon steels, but are corrosion-resistant. They are easy to process. The chromium content is usually 13 - 17%. Such grades are magnetic. These are mainly grades

Food stainless steel - is a special material that is resistant to temperature changes, resistant to oxidation, safe when interacting with drinking water and food products, does not dissolve, does not decompose and, therefore, does not release dangerous, harmful, toxic elements into food, water. This steel is strong, durable and resistant to mechanical damage. Such properties of this group of stainless steels make

Heat-resistant stainless steel - it is basically an austenitic stainless steel, containing a high content of chromium (20 - 25%) and nickel (10 - 20%) and, as a result, has better oxidation resistance at high temperatures. One defines heat-resistant

Instrumental stainless steel - is a special alloy stainless steel or carbon stainless steel - an alloy with a high carbon content. It is characterized by high rigidity and strength, and after final heat treatment - hardening, it becomes superhard and superstrong. Instrumental stainless steel is intended for the manufacture of cutting and measuring tools, cold and hot deformation

Magnetic stainless steel - is an alloy that has the property of being attracted by magnets. Magnetic properties do not affect the performance characteristics of stainless steel, in particular, its resistance to corrosion. The difference in magnetic properties is a consequence of the different internal structure of steel grades, which directly depends on the chemical composition of stainless steel. Magnetic grades

Martensitic stainless steel - is an alloy that usually contains about 12 - 14% chromium, has a comparatively increased carbon content of 0.2 - 0.4%, and is magnetic. It is well strengthened by quenching and tempering. Such

Medical stainless steel - is a high-quality stainless alloy that meets established sanitary and hygienic standards and is recommended for use in the medical industry (medical furniture, equipment, devices, instruments, accessories, etc.).

Surgical stainless steel - is a type of stainless steel with the strictest sanitary and

Non-magnetic stainless steel - is an alloy that does not have the property of being attracted to magnets. Non-magnetic properties do not affect the performance characteristics of stainless steel, in particular, its resistance to corrosion. The difference in non-magnetic properties is a consequence of the different internal structure of steel grades, which directly depends on the chemical composition of stainless

Powder grades of stainless steel - are a type of stainless steel grades and alloys that are produced not by the traditional melting method, but by the powder metallurgy method. Due to this production method, powder stainless steel has a number of advantages over traditional stainless steel.

It is important to note that there are many

Technical stainless steel - is a stainless alloy that is not recommended for use in contact with drinking water and food products. When interacting, hazardous, harmful, toxic substances formed on the metal surface may be released into food and water. Such substances are formed due to the scanty amount or complete absence of such chemical elements as nickel, titanium, cobalt, molybdenum, etc. in the