As we know, the production of steel products in the industrial world is vast and diverse. The manufacturing process and mechanical properties of all steel products can vary significantly depending on the type of project and the specific requirements of the material.

Among the most widely used and popular steels in construction and manufacturing industries are ST37 and ST22 steels. While we have previously discussed the differences between ST37 and ST22 steels, as well as the physical and mechanical properties of ST37, in this article, we will delve deeper into why ST37 steel is considered a more suitable and ideal option for various construction projects.

Introducing ST37 Steel

ST37 steel is one of the most fundamental and widely used steels available on the market, categorized as low-carbon steel. Due to its excellent mechanical properties, high strength, and several key capabilities, it is an ideal choice for a wide range of applications. Some of the outstanding applications of ST37 steel include construction, and the production of various steel sections such as I-beams, scaffolding pipes, profiles, angles, and hollow sections.

SAFA Company is one of the largest leading producers of heavy profiles, light profiles, profile pipes, profile tubes, and various iron tubes suitable for greenhouse structures in Iran. SAFA products are all manufactured with the highest quality and meet international JIS and DIN standards. SAFA uses the highest quality ST37 steel in the manufacturing process of its steel products.

In the following sections, we will comprehensively examine the properties, advantages, applications, and standards of ST37 steel, and explain why this steel is considered one of the best options for building durable and resistant structures.

Mechanical Properties of ST37 Steel

As a low-carbon steel alloy, ST37 exhibits an exceptional balance between strength, toughness, and ductility. This balance makes it an ideal choice for a wide range of industrial and construction applications. The high tensile strength of ST37 enables it to withstand heavy loads and be used in massive structures such as bridges and high-rise buildings. The suitable toughness of this steel increases its resistance to impact and shock, preventing sudden fractures. Additionally, the high ductility of ST37 allows for the creation of complex and diverse components. These properties, combined with excellent fatigue resistance, make ST37 a versatile engineering material with high reliability.

Chemical Composition and Its Impact on the Properties of ST37 Steel

The chemical composition of ST37 steel is the key to understanding its unique mechanical properties. This alloy is primarily composed of iron, with elements such as carbon, manganese, and silicon. Each of these elements plays a specific role in determining the final characteristics of the steel. For instance, increasing the carbon content increases the steel's strength but reduces its toughness. Manganese, in addition to improving yield strength, also increases the steel's wear resistance. Silicon, by increasing tensile strength and reducing the steel's brittleness, significantly contributes to improving its overall properties. In summary, the precise interaction of these elements gives ST37 steel its unique properties and makes it suitable for a wide range of industrial applications. But does ST22 steel also have similar capabilities? Why do we focus so much on ST37 steel?

The answer to this question will be clear in the following sections, especially in the comparison table of compositions and mechanical properties.

Comparison of ST37 Steel with ST22 Steel

ST37 steel is often compared to ST22 steel. Although both steels are classified as low-carbon steels, ST37 has more specific mechanical and physical properties compared to ST22. These specific properties make ST37 more suitable and efficient for a wider range of applications.

As the table shows, ST37 steel outperforms ST22 steel in all aspects, making it a much more suitable option.

Applications of ST37 Steel

As discussed in previous sections, ST37 steel has better mechanical properties than ST22 steel and naturally has fewer limitations. Therefore, the range of applications for ST37 steel is vast. In general, due to its favorable mechanical properties and competitive price compared to other similar steels, ST37 steel is used in various industries. Thanks to the golden range of 0.12 to 0.17 percent carbon in ST37 steel, in addition to its exceptional strength, this steel also has high ductility. This is why ST37 is used in the construction industry for producing steel skeletons of buildings, warehouses, I-beams, angles, channels, reinforcing bars, sheets, and construction profiles. On the other hand, in manufacturing industries, ST37 steel is used to produce various industrial profiles such as heavy profiles, light profiles, profile pipes, profile tubes, and various iron tubes.

Furthermore, as previously mentioned, this steel falls under the category of low-carbon steels. This characteristic endows ST37 steel with excellent weldability, allowing it to be used for a broader range of applications through welding processes. It is employed in the construction of various water and wastewater pipes and storage tanks. The high strength of ST37 steel has led to its application in shipbuilding and bridge construction. The combination of high weldability, strength, and weldability suitability makes this steel ideal for manufacturing chassis, bodies, and engines of various automobiles.

Some other applications of this steel include:

Automotive industry: Vehicle chassis, various body components, and body reinforcement structures

Energy industry: Construction of various wind turbines, power plant structures, power transmission towers, and solar panel structures

Advantages of Using ST37 Steel

Durability and longevity: ST37 steel is resistant to corrosion, abrasion, and fatigue, increasing the service life of structures.

Cost-effectiveness: The reasonable price of ST37 steel, coupled with low maintenance costs, makes it an economical choice.

Ease of construction and installation: Excellent weldability, high ductility, and relatively low weight facilitate the construction and installation process of steel structures, reducing project duration.

Safety: High safety standards and good impact resistance make ST37 steel suitable for structures where safety is a paramount concern.

Environmentally friendly: The possibility of recycling ST37 steel and reducing waste production makes it an environmentally friendly choice.

Easy accessibility: Due to the popularity and widespread use of ST37 steel, it is readily available on the market through various suppliers. This advantage facilitates quick and easy access to high-quality materials for various projects.

ST37 Steel: An Exceptional Choice for Durable Structures

Safa Company, as one of the most reputable steel producers in Iran, is proud to offer ST37 steel to its customers with the highest quality, competitive pricing, and special conditions. By leveraging the latest technology and modern equipment, we produce products that meet the highest standards and always prioritize customer satisfaction.

ST37 steel, with its unique combination of strength, formability, and affordability, is considered a wise choice for a wide range of construction and industrial projects. The outstanding track record of this steel in the construction industry is a testament to its quality and performance, making ST37 a reliable option for engineers, designers, and builders.

.

.

Profile tubes are one of the most widely used steel sections in the construction and hangar building industries. They have a closed cross-section and are available in a wide variety of dimensions, materials, and shapes, making them suitable for a wide range of applications, particularly in construction and hangar building. In this article, we will introduce the different types of profile tubes and their applications in construction and hangar building.

What are Profile Tubes?

The term "profile tube" or "box" is used in the industry to refer to certain types of profiles with specific characteristics. In this section, we will explain which profiles are considered profile tubes. By defining this category of profiles, we can better understand the capabilities and applications of these types of profiles.

In general, in the steel product manufacturing industry, the term profile tube (Box) refers to steel that has the following characteristics:

• It has four sides and is designed and manufactured in specific geometric shapes such as square or rectangular profiles.
• The next important point is that only hollow profiles are called profile tubes. For example, solid circular bars are not considered profile tubes.
• The next point is that only closed profiles are called profile tubes. In the article introducing the different types of profiles, we have fully introduced open and closed profiles. To give a simple example, a Z profile is not considered a profile tube because it has an open cross-section and has 4 sides and a specific geometric appearance, only in the shape of the English letter Z.
• Another important point for a profile to be called a profile tube is that the profile tube must have a constant cross-section. Its length can be variable, but its cross-section must be constant.
• Profile tubes are always used to facilitate the construction process and increase the strength of structures.

Now that we are well acquainted with the concept of profile tube (Box), it is time to introduce the different types of common profile tubes and explain their applications in construction and hangar building.

Types of Profile Tubes Based on Appearance

Square Profile Tubes or Square Boxes: The most common type of profile tube is square profile tubes, which have a closed cross-section with equal sides and are square in shape. This type of profile is used in the construction of a wide variety of building structures and is mainly used in the construction of columns, beams, and joists. However, it is important to note that these are only a part of the applications of square profile tubes.

Rectangular Profile Tubes or Rectangular Boxes: Like square profile tubes, rectangular boxes have four sides that are equal in pairs. This type of profile is used in cases where increased strength is required in one direction. Rectangular profile tubes are used in cases such as the construction of main and secondary beams and various columns, but again this is only a small part of the applications of these profile tubes and is only a small part of their applications.

Advantages of Profile Tubes

Square and rectangular profile tubes have many applications, which is due to their exceptional properties and capabilities. The reason why these products are used in various projects, including construction and the construction of various types of hangars, is due to the following features:

• Due to the four-sided nature of these types of boxes, pressure and stress are applied to the profile tubes in a balanced and symmetrical manner, and for this reason, square and rectangular profile tubes have exceptional stability.
• The high strength and resistance of profile tube steel make them a reliable and permanent solution in all industrial and construction projects.
• Square and rectangular profile tubes have very good surface section quality, which is why they can withstand very heavy loads; without the slightest damage to them and without any damage or even deformation.
• Steel profile tubes have excellent weldability, which is why they are very popular in the industry. No matter what structure is to be built and of what size; The construction of the skeleton and strengthening of this structure using the high weldability of steel profile tubes is easily possible.

How Profile Tubes are Manufactured

If we want to briefly explain the process of manufacturing and producing various types of steel profile tubes, we must say that for the construction of various types of profile boxes, steel sheets are used as the raw material for these profile boxes. In SAFA company, we use st37 steel sheets in all the profiles and products that we produce. This steel is produced in Isfahan Steel Company and reaches us. Finally, in SAFA company, these steel sheets are turned into strong, resistant, and reliable profiles with the highest accuracy and quality.

The steel sheets are cut into pieces of different sizes at room temperature. Then these pieces are shaped into standard profile shapes using special press machines. In SAFA, we use the latest world technologies and the knowledge of steel industry experts to produce the most accurate and flawless profile products required by various industries.

Now that we are well acquainted with the advantages and manufacturing process of steel profile tubes (Box), it is time to introduce the applications and capabilities of profile tubes in construction and hangar building.

Applications of Steel Profile Tubes in the Construction Industry

Metal Building Frame: Rectangular and square steel profile tubes are used for the construction of columns, beams, trusses, wind braces, and other main components of the metal building frame. In fact, the skeleton of a building requires a large amount of steel profile.

Roof and Reinforcement: The roofs of buildings and apartments must be strong and resistant and at the same time have a suitable weight. The best option for such a situation is square and rectangular profile tubes, which have high strength and resistance while having a suitable weight.

Construction of Stairs and Stairways of Buildings: Profile tubes are used to construct stairs, landings, and steps. This type of profile is used in cases such as the construction of various stairs with different designs such as spiral and straight stairs, etc. In addition, to increase the strength and resistance of stairs, these types of profiles are very effective.

Construction of Main Door Frames of Houses: Profile tubes are used to construct the frames of metal doors and windows of buildings. Doors and windows must be resistant and strong in the face of various weather conditions and unauthorized entry. Therefore, to strengthen and increase the strength of doors and windows of buildings, this type of profile is used.

Railing and Parapet: It is very important that the railings and parapets of buildings are strong and resistant to all kinds of stress and impacts. Therefore, profile tubes are used to construct parapets and railings.

Applications of Steel Profile Tubes in Hangar Construction

Profile tubes are also used in the construction of hangars. Hangars are actually metal structures with a sloping roof and no columns inside the hangar enclosure. This structure is very versatile and most sports halls, warehouses, and workshop areas are built as hangars. Profile tubes are used in various parts of the hangar construction process, including:

Metal Hangar Frame: Rectangular and square steel profile tubes are used throughout the metal frame construction process of the hangar and are an essential and vital part of hangar construction.

Hangar Roof: Steel profile tubes are used to construct the framework and truss of the hangar roof. In fact, the construction of the hangar truss requires light and strong profiles, so profile tubes are suitable options for such work.

Hangar Walls: Various types of square and rectangular profile tubes are used in the construction of hangar walls to design strong and resistant walls for the hangar.

Hangar Doors: Typically, square and rectangular profile tubes are used to construct the frames of large and heavy hangar doors.

SAFA Profile Tubes: Strong Guardians of Buildings and Hangars

In this article, we discussed the applications of various steel profile tubes in the construction of various buildings and hangars. SAFA profile tubes are always a smart and cost-effective choice, the benefits of which are evident in every stage of the construction of your structures. High strength, offering a variety of products, easy installation of steel parts, and affordable product prices are just a few of the advantages of buying SAFA products. So step into the world of SAFA profiles and enjoy building strong and reliable structures. If you need expert advice, please contact us and share your questions and concerns with SAFA company consultants. Our consultants and experts are always by your side to help you create the best and most durable structures.

..

..

...

...

...

...

...

...

...

...

...