Stainless steel tanks are tanks made of stainless steel. Stainless steel or stainless steel is a type of steel that has high resistance to rust and corrosion by adding elements such as chromium, nickel and molybdenum. Stainless steel tanks are used in many industries and applications, including the chemical, pharmaceutical, food, oil and gas, water and wastewater, and automotive industries. These tanks are considered due to their high resistance to corrosion and rust, ability to be cleaned and disinfected. The advantages of using a steel tank are:
- Stainless steel has high resistance to corrosion factors such as moisture, acids and bases.
- The polished and washable stainless steel surface allows for cleaning and disinfection.
- Stainless steel tanks can operate at high or low temperatures and have good resistance to temperature changes.
- Due to the corrosion resistance of stainless steel, stainless steel tanks have a long life and require less maintenance.
Different stainless steel alloys contain different chemical compounds that affect their mechanical and physical properties. Stainless steel has a high resistance to tensile forces, and this feature makes it suitable for applications that require mechanical strength and stability. Stainless steel has good bending properties and resists the bending forces that occur in some structures and parts. Some stainless steel alloys have high impact resistance and can withstand sudden blows. Stainless steel has good flexibility and shows sufficient resistance against various deformations.
Applications of steel tanks
Steel tanks have various applications in the chemical industry, food industry, and oil and gas industry. Steel tanks in these industries are used for safe and reliable storage of required materials due to their high resistance to corrosion, the possibility of cleaning and disinfection, the ability to withstand pressure and temperature , and long life.
- Storage and transportation of dangerous and toxic chemicals such as acids, alkalis, solvents and flammable chemicals.
- Mixing tanks for preparation and storage of chemical solutions and other chemical compounds.
- Storage and transportation of food such as oils, milk, juice, confectionery and high yield food.
- Tanks for preparation and storage of raw materials such as flour, sugar, salt and additives.
Oil and gas industry
- Storage and transportation of oil and gas products such as crude oil, gasoline, diesel, diesel, natural gas and liquid gas.
- Tanks for preparing and storing chemicals used in oil and gas processes, such as chemical solutions, cooling water, and boiling reducing chemicals.
Characteristics of stainless steel
The chemical compounds of steel include chromium, which plays the main role in the formation of stainless steel and acts as the main alloying element to increase resistance to rust and corrosion. Nickel adds resistance to rust and corrosion to stainless steel and improves its mechanical properties. Molybdenum increases the corrosion resistance of stainless steel under the influence of strong chemical agents such as acids and bases. As the main element of stainless steel, iron provides its strength and hardness and helps to form the structure of stainless steel.
Stainless steel has a high density, which means a relatively high weight compared to the volume it occupies. Stainless steel has a high modulus of elasticity, which means its ability to return to its original shape after a force is applied. This feature is important to prevent permanent deformation in the stainless steel structure. Stainless steel has a relatively low coefficient of thermal expansion, meaning it expands and contracts less with temperature changes. This feature is important for applications that require dimensional stability under variable temperature conditions.
The melting temperature of stainless steel depends on the alloy and chemical composition, but is usually in the range of 1500-1400 degrees Celsius. This feature is important for molding and forming processes of stainless steel parts. Stainless steel has a relatively low thermal conductivity, meaning it conducts heat less well through it. This feature is important for applications that require thermal insulation. Stainless steel has relatively high electrical resistance and is used as a non-conductive material. This feature is important for applications that require electrical resistance, such as in electronic components.
Design and production of steel tank
The design, manufacturing and welding of steel tanks are generally done based on industry standards and guidelines. The dimensions, shape, capacity and working pressure of the tank are determined based on the application needs. The design of steel tanks is based on standards such as ASME (American Society of Mechanical Engineers) and API (American Petroleum Institute). These standards specify the design, construction and testing conditions of tanks. The selection of steel materials is done according to mechanical properties, resistance to corrosion and rust, working temperature and other factors related to the application of the tank.
Steel sheets are cut according to the design and dimensions of the tank and are transformed into the required shapes. This process may be done using plasma cutting tools, laser or CNC cutting machines. The shaped parts are connected to each other using the welding method. Welding can be done using various methods such as TIG welding, MiG welding, electrode welding and plasma welding. After welding, mechanical processes such as forming of pressure devices and equipment, installation of connections and connection systems such as piping, transportation systems and support systems are carried out.
After construction, steel tanks are subjected to final tests such as pressure test, hydrostatic test and compression test under pressure. By using a shielded TIG welding gas such as argon, the welding environment is separated from oxygen and nitrogen and provides a clean and quality weld. MIG welding is faster than TIG and is used for welding large parts and heavy metals.
It is used for welding small steel tanks and repairs. In this method, welding is performed using an electric arc between the plasma electrode and the workpiece. This method is suitable for accurate and delicate welding and can be used in welding steel tanks with different thicknesses.
Steel tank price
The price of steel tanks can be very variable and depends on many factors. Below are the approximate prices for all types of steel tanks with different capacities. But it should be noted that the prices may change at different times and places and also depend on the features, standards and technical specifications of the tank. Therefore, you can contact the sales unit of Petro Sanat Taraz Company to get the exact price based on your needs.