Steel tank types are among the most widely used materials in the food, chemical and sanitary industries, which are used as containers and liquid tankers. In fact, any tank made of steel alloys is called a steel tank. Stainless steel is one of the best and most resistant steel alloys against corrosion, pressure, impact and even heat. For this reason, it can hold a huge range of materials and be used in different weather and humidity conditions. In this article, we tried to give information about the types of steel tanks and their applications.
Familiarity with a variety of steel tanks
Steel tanks have many uses and it can be said that there is no special limit in the use and applications of all types of steel tanks. It can be used for food, dairy, pharmaceutical, petrochemical, oil and gas, herbal extracts, chemical industries, and products transfer materials. Due to the many uses of these tanks, different categories have been provided for them, the four main categories of which are:
Classification of tanks based on appearance
Classification of steel tanks based on sheet material
Classification of steel tanks based on wall
Types of steel tanks based on appearance
Types of steel tanks are available in different shapes. You can buy them in the form of spheres, cones, cylinders, cones and funnel bottoms, cubes or liquid tankers depending on your needs. Among the shapes of steel tanks, cylindrical tanks are the most used and are used horizontally and vertically. These specially designed tanks can also be used as liquid tankers.
Cubic steel tanks are usually used for special places where there is little space and special uses are desired, and they are custom made. Spherical tanks are the most complex type of steel tanks that can withstand high pressures, that's why they have their own use.
Types of steel tanks based on wall
According to the type of use, the steel tank can be prepared in different models and with large dimensions and volumes. Steel tanks are usually customized depending on the customer's needs and are available in single, double and triple wall models, and the higher the number of walls, the higher the price.
Single -walled steel
This type of tank is the most widely used type of steel tank, which is used both horizontally and vertically in various industries. Normally, the single-walled tank is used to protect food, medicine and chemicals whose pH is neutral. 304 and 316 steel sheets are usually used to make single wall tanks. But based on the customer's needs, it is also possible to produce them from other steel alloys. Single-wall tanks are mostly cylindrical in shape and are produced in capacities from 500 liters to 150,000 liters.
Dual -walled steel
When the steel tank needs to have the ability to maintain heat or cold or special capabilities, double-walled or 3-walled tanks are used. In fact, the second layer has no effect on the amount of pressure or resistance that the steel tank can withstand, and is more of a coating. For this reason, the thickness of the second wall is usually considered to be 1.5 mm in the design of the steel tank. But the thickness of the inner layer, which is responsible for the main task, is designed based on the pressure and weight of the fluid, etc., and is usually more than 2 mm. Glass wool, stone wool and other thermal insulation may be used between the two walls.
In general, when using a double-walled steel tank, their temperature should not change continuously. The appearance of these tanks may shrink due to continuous use due to weather and atmospheric changes. As long as this deformation is only in the outer layer, it will not affect the performance of the steel tank. Double-walled steel tank body can be produced from either 304 or 316 steel sheets or other alloys in combination or individually. The double-walled steel tank is better known as the industrial steel tank and is used in capacities of 500 to 150 thousand liters.
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This model is also one of the most sophisticated, professional and best options for carrying materials. They are usually made of three layers with similar or non-similar alloys. These alloys are 304 and 316 models, which are considered the most widely used steels in the world. The capacity of these tanks even reaches 500 liters. In addition, depending on the needs of the employer, 10,000 liter models can also be purchased. The three-walled steel tank is also called a process tank because it is used for long-term storage and storage of products, mixing processing, as well as temperature change and heat exchange.
The main use of this product is in the dairy industry. In these industries, three-walled steel tanks are used to store butter and cream, and also to produce butter or cream from raw milk, crystallization and creaming are used on this basis. These tanks also have the possibility of installing other equipment, tools and accessories. You can put a pressure gauge, thermometer, stirrer, volume meter and even a lid on them. In addition, modern equipment such as PH meter, egg jackets and digital heat transfer system are also usually used for them.
Types of steel tank based on sheet sex
Steel tanks are tanks that are produced from different steel alloys. One of the most important alloys used in the construction of this type of tanks is stainless steel alloy. The main and most important material in the making of this alloy is chromium and nickel, in the composition of this alloy, chromium 18 to 20, nickel 8 to 10, silicon 1%, sulfur less than 0.03%, phosphorus 0.045, manganese 2 and carbon 0.08% are used. This amount of chromium creates a protective layer on the steel and prevents the corrosion of its lower parts. Stainless steel alloy is produced in different grades, and the sheets produced in grades 304 and 316 are the most used in the production of steel tanks.
Steel Tank 304
Types of 304 steel tanks are available in the market as stainless tanks, which have 18% chromium, 8% nickel and up to 0.08 carbon. Steel grade 304 is commonly used as a low carbon metal. Also, you cannot harden it by heating during the design stage. Since the 304 steel sheet has extremely high resistance to corrosion, it does not oxidize under normal conditions, and it is also resistant to intermediate acids. That is, if you intend to move chemicals with it, it can usually be a great choice in most situations. In addition, the nickel present in this alloy increases its metallurgical properties.
In general, these steel tanks are used in the production of all kinds of tanker products, storage materials for chemicals or agents, food production, vegetable oil factories, and casks. You may have seen fuel tankers and wondered how they are resistant to temperature or chemical changes. Carbon and nickel are used in these materials.
Anti -acid reservoir or steel tank 316
The most widely used grade for the production of anti-acid tanks are 316 grade steel sheets. These sheets, having high amounts of molybdenum in their alloy composition, have a very high resistance against corrosion, especially surface corrosion. For this reason, they are used for applications related to strong acids and high temperatures that require high resistance.
This model is used in various pharmaceutical, food, military, chemical, etc. industries. Of course, apart from 316 steel sheet, other materials such as polyethylene and polypropylene can also be used to make an anti-acid tank. But stainless steel tanks have the ability to install additional equipment such as stirrer or mixer, coil for cooling or heating, etc. While there is no such possibility in antacid tanks made of other materials.
