Stainless steel is a high-quality alloy material that is resistant to the effects of the atmosphere, humid environments and aggressive chemicals. It contains at least 13% chromium, which forms a protective oxide film on the alloy surface, which prevents the spread of corrosion and metal destruction. In addition to corrosion resistance, it is characterized by increased strength, long service life and attractive appearance. Below we will consider the main types stainless steel, its main properties and the industries in which it is most commonly used.
Key features
Stainless alloys have a number of features that make them irreplaceable not only in various industrial areas, but also in everyday life.
- Corrosion resistance. The main advantage of stainless steel is its high resistance to corrosion. The protective oxide film formed on the surface of the material effectively resists the effects of moisture and various chemicals (both bases and acids).
- Strength and wear resistance. Alloying elements, such as titanium, nickel, molybdenum and others, significantly increase the strength characteristics of the alloy, giving it wear resistance and resistance to mechanical damage.
- Aesthetic appearance. Corrosion-resistant alloys retain their luster and smoothness throughout their entire service life, which makes them popular in decorative and structural elements where appearance matters.
- Environmental friendliness and safety. The material does not release toxic substances into the environment, so it is safe for use in the medical and food industries.
- Easy care. Stainless steel products are easy to clean and do not require special care, which reduces operating costs and simplifies maintenance.
Stainless steel types
Corrosion-resistant high-alloy alloys are classified according to their own structure, which determines their properties and applications.
Austenitic steels
They contain chromium and nickel; alloying additives may include molybdenum, titanium and other elements. They have high ductility and excellent impact strength, which makes them convenient for processing, welding and forming. Austenitic steels are used in food, chemical and other industries.
Examples of brands:
- AISI 304 (08X18H10) is a universal alloy with increased resistance to various types of corrosion, used in the food and chemical industries;
- AISI 316 (08X17H13M2) — contains molybdenum, due to which it retains its original properties when exposed to aggressive media, such as acids and bases.
Ferritic steels
Ferritic steels contain chromium, but there is no nickel. These materials have magnetic properties. They are highly resistant to various types of corrosion. At the same time, the strength of ferritic steels is lower than that of austenitic steels. Such steels are widely used in applications where efficiency and corrosion resistance are important.
Brand example:
- AISI 430 (12X17) is an inexpensive alloy with good corrosion resistance in gentle environments, often used for decorative items, household appliances and dishes.
Martensitic steels
They are highly wear-resistant and resistant to mechanical loads. After heat treatment acquire increased hardness and strength. Ideal for the manufacture of cutting tools, machine parts and structures operating under load.
Examples of brands:
- 20X13 — used for the production of knives and other cutting tools, valves and springs;
- 30X13 — is more rigid and is used for the manufacture of high-load parts, such as blades and cutting tools.
Applications of stainless steels
Due to its versatility, durability and high performance corrosion-resistant alloys are widely used in various industries:
- Food industry. They are used to make equipment and utensils that come into contact with food products. The presented materials guarantee durability and safety, as they do not react with food ingredients.
- Automotive industry. They are used for the manufacture of bodies, engine parts and other vehicle components, which ensures the durability of cars.
- Construction. They are used for the manufacture of elements of facades, roofs, fences and other structures where strength and aesthetic appearance are important.
- Medicine. Medical instruments are made from stainless steel, implants and equipment that is biocompatible and highly durable.
- Chemical industry. They are used for the production of tanks, pipelines and pumps that work with aggressive chemicals and at high temperatures.
- Energy. They are used in gas and oil pipelines, equipment for power plants and other facilities where reliability and resistance to aggressive operating conditions are important.
- Home appliances. They are used for the production of refrigerators, washing machines, gas and electric stoves, boilers and other household appliances, giving the equipment an attractive appearance and making it easier to care for.
Stainless steel produced by PZPS
PZPS produces high-quality stainless steel, including martensitic steel 20X13 and austenitic steels 12X18N9, 12X18H10T, 10X17N13M3T. The company also offers manufacture of other steel grades according to individual customer requests. The whole products meets strict quality standards, ensuring durability and reliability in operation.
Here you can buy cold-rolled strip made from an analogue of Inconel 718 and other foreign materials, as well as order development of new alloys according to the technical requirements of your project. For advice and placing an order, please contact us by phone +7 812 740-76-57 or leave a request on the site. We can help you find the perfect solution for your production.
