Iron and Steel Production in Turkey and Tosyalı’s Product Power

How is Iron and Steel Production Structured in Turkey?

The Turkish iron and steel sector consists of numerous facilities with different production methods and product groups. Some facilities have an integrated production structure starting from iron ore, while others produce steel by melting metallic inputs such as scrap or directly reduced iron in electric arc furnaces.
The produced liquid steel is converted into semi-finished products such as slabs, billets, or blooms in continuous casting facilities. Slabs are mostly used in flat steel production; billets and blooms are used in rebar, wire rod, profiles, and other long steel products.
Iron and steel factories in Turkey can be evaluated in the following main groups according to their product structure:

• Facilities producing hot-rolled flat steel
• Cold-rolled and coated sheet manufacturers
• Long steel facilities producing billets, wire rod, and rebar
• ERW and spiral welded steel pipe manufacturers
• Hollow section and structural profile manufacturers
• Steel service centers
• Steel shot and industrial abrasive manufacturers
• Slag processing and metal recovery facilities

This structure makes it difficult to respond to the search for a "list of iron and steel factories in Turkey" with a single fixed list. Facilities may change over time in terms of capacity, product group, and field of activity. Furthermore, a production facility, service center, and recovery facility are not in the same category.

Regions Where Steel Production is Concentrated in Turkey

The primary reasons for the concentration of iron and steel factories in certain regions include access to ports, raw material logistics, energy infrastructure, industrial clustering, and proximity to the domestic market.

İskenderun and Osmaniye Region

The İskenderun Bay and Osmaniye line is one of Turkey's most important iron and steel production clusters. Port access, industrial infrastructure, and the density of manufacturers in the region support the movement of raw materials, semi-finished products, and final products.
A significant part of Tosyalı’s production power in Turkey is located in this region. Flat steel, profiles, pipes, and steel shot production stand out in İskenderun and Sarıseki; while billets, wire rod, rebar, tinplate, galvanized, painted, and other flat steel products come to the fore in Osmaniye.

Marmara and Dilovası Region

The Marmara Region is an important center for steel production and processing activities due to its proximity to the automotive, white goods, machinery, construction, and export markets.
Dilovası and its surroundings hold a strategic position for pipe-profile production, steel service activities, and recovery facilities with their port, highway, and industrial connections. Tosçelik’s Dilovası activities and Tosyalı Harsco’s recovery facility are part of this regional structure.

Aegean and Aliağa Region

Aliağa is one of Turkey's important steel production and service centers due to its port and energy infrastructure. Steel production, coil and sheet processing, port operations, and export activities are carried out together in the region.
Tosçelik’s steel service center activities in Aliağa support processes such as cutting, slitting, or length-cutting of products according to customer needs. It should be correctly explained that the service center is not a factory producing liquid steel; it processes produced flat steel according to customer dimensions.

Black Sea Region

The Black Sea region is one of the historical production centers of the Turkish iron and steel sector with its integrated facilities and port connections. Ore, coal, and final product logistics play a decisive role in the production structure of the region.
Facilities in different regions of Turkey do not produce the same products. Therefore, when researching a factory, product group, production method, and up-to-date corporate information should be examined alongside the region.

Tosyalı’s Production Ecosystem in Turkey

Tosyalı Holding’s domestic subsidiaries operate in different stages of the steel value chain. The group structure consists not only of a single iron and steel factory but also of flat and long steel manufacturers, pipe-profile facilities, coated product manufacturers, and recovery companies.
This diversity allows for responses to different product needs of customers through specialized companies within the group. At the same time, it creates an integrated ecosystem where a product of one company can be used as a production input for another Tosyalı company.

Production of Flat Steel, Profiles, Pipes, and Granules in İskenderun

Tosyalı Demir Çelik is one of the main steel production pillars of Tosyalı in Turkey with its production activities in the İskenderun and Sarıseki region.
The company's hot-rolled flat steel facility carries out the production of coils and sheets in different qualities and sizes. Official corporate information states that the facility can produce products in various qualities ranging from S235 to X100, with thicknesses between 1 and 26 millimeters and widths up to 1,650 millimeters. Current quality and production ranges should be verified through the product matrix before ordering.
Tosyalı Demir Çelik’s long product portfolio includes UPN, IPN, and IPE profiles, as well as structural inputs such as angles. These products can be used in different applications from power transmission lines to steel construction, and from machinery production to industrial facilities.
Tosçelik offers ERW pipes, hollow sections, coil sheets, and various steel solutions with its facilities in İskenderun. Pipes and profiles are selected according to the purpose of use, standard, diameter or section, wall thickness, and coating needs.
Tosçelik Granül produces low-carbon steel shot at its facility in İskenderun. The KOTAR product family can be used for surface cleaning, rust and oxide removal, deburring, and surface preparation before painting.

Production of Long Steel and Coated Flat Steel in Osmaniye

Osmaniye is one of the most concentrated centers of Tosyalı’s production ecosystem in Turkey.
Tosyalı Metalurji produces steel billets and ribbed rebar with its electric arc furnace, continuous casting, and rolling mill infrastructure. Steel billets are semi-finished inputs for various rolling products. Ribbed rebar is used in reinforced concrete structures.
Tosyalı Filmaşin ve İnşaat Demiri produces wire rod, ribbed wire rod, and rebar. Official company information states that the facility can produce wire rod between 5.5 and 25 millimeters, rebar between 8 and 32 millimeters, and ribbed wire rod between 8 and 16 millimeters. Product selection should be made according to the current production matrix.
Tosyalı Toyo offers tinplate, cold-rolled, full hard, acid-cleaned hot-rolled, galvanized, and painted products with production lines that add value to flat steel.
Tosyalı Toyo’s products can be used as production inputs for the food and industrial packaging, automotive, white goods, construction, HVAC, and energy sectors. The company does not produce the final products of these sectors but the coated or processed flat steel used in product manufacturing.
Tosçelik’s Osmaniye facilities also play an important role in the production of ERW pipes and profiles. Products are offered for construction, industry, mechanical installation, water, gas, and various industrial applications according to the current product matrix and certificate scope.

Pipe-Profile and Recovery Activities in Dilovası

Dilovası is one of the centers for Tosyalı’s production and recovery activities in the Marmara Region.
Tosçelik’s Dilovası facility has a production scope associated with the ERW pipe and profile group in its quality certificates. Product details should be verified through the facility-based production matrix and up-to-date quality certificates.
Tosyalı Harsco processes the slag generated during steel production in Dilovası. Metal within the slag is recovered, and the remaining mineral part is classified through crushing and screening processes. Material with suitable technical specifications can be offered as a raw material to the construction and cement sectors.
This structure in Dilovası contributes to steel production and resource recovery becoming complementary activities within the same industrial zone.

Tosyalı’s Flat Steel Products

Flat steel is one of the fundamental groups of Tosyalı’s product ecosystem in Turkey. Hot-rolled coil and sheet can form the input for subsequent cold rolling, coating, pipe-profile, or general manufacturing processes.

Hot-Rolled Flat Steel

Tosyalı Demir Çelik’s hot-rolled flat products can be used in energy, pipes, construction, machinery, and various industrial applications.
The following technical information should be evaluated when selecting a product:

• Steel quality
• Thickness and width
• Coil or plate form
• Surface and edge condition
• Mechanical properties
• Weldability and formability
• Applicable product standard
• Subsequent production process

X-class pipe steels, deep drawing qualities, or high-strength structural steels have different intended uses. Defining a product only as "hot sheet" is not sufficient for the correct choice.

Cold-Rolled, Galvanized, Painted, and Tinplate Products

Tosyalı Toyo converts hot-rolled input into products with more precise tolerances or coatings by passing them through different processes.
Cold-rolled products are aimed at precise surface and forming needs; galvanized products at corrosion resistance; painted products at decorative appearance and outdoor performance; and tinplate products at packaging applications.
Even within the same sector, product selection may change. For example, paintability and surface class are important for a visible white goods part, while strength and forming behavior may come to the fore for an internal structural part.

Tosyalı’s Long Steel Products

Long steel products include billets, rebar, wire rod, angles, and structural profiles.

Billet, Wire Rod, and Rebar

Steel billet is the semi-finished input for wire rod and rebar production. Its chemical composition, section, and surface quality affect the subsequent rolling process.
Wire rod is a hot-rolled long steel product offered in coil form. It can be used in the production of wire drawing, fasteners, welding wire, springs, nails, and various industrial products. Depending on the final application, low-carbon, high-carbon, or special quality wire rod can be preferred.
Ribbed rebar is used in reinforced concrete structure systems. Diameter, length, steel class, yield and tensile strength, and ductility are evaluated according to project requirements.

Angle, UPN, IPN, and IPE Profiles

Angles and structural profiles are used in steel construction, power transmission lines, machinery manufacturing, and industrial facilities.
UPN profiles have a U-shaped section, while IPN and IPE products have an I-shaped section. The correct profile is selected according to the section geometry, load-bearing direction, and project design.
Current size, quality, and standard information for Tosyalı Demir Çelik’s long product groups should be verified from the official product pages.

Tosçelik Pipe and Profile Products

Tosçelik offers a wide product portfolio in the field of steel pipes and profiles. ERW pipes are produced by shaping hot or cold-rolled steel strips and joining their edges with electric resistance welding.
In pipe and profile selection, diameter or section alone is not sufficient. Wall thickness, steel quality, length, welding quality, coating, pressure class, usage environment, and standard should be evaluated together.
Tosçelik’s products may generally include options for the following needs:

• Water and gas transmission pipes
• Industrial and construction pipes
• Scaffolding pipes
• Pipes for boiler and pressure applications
• Square and rectangular hollow sections
• Cold-rolled precision pipes and profiles
• Heat-treated and hot-finished products
• Coated pipes and profiles

It should be remembered that each product group is produced in specific facilities and has a different certificate scope. Facility-based suitability should be checked with the Tosçelik product matrix and quality certificates.

The Role of Tosçelik Granül and Tosyalı Harsco in the Ecosystem

The steel value chain is not completed only by producing the main products. Surface treatment materials and the recovery of production by-products are also parts of the industrial ecosystem.
Tosçelik Granül produces low-carbon steel shot. Steel shot can be used for removing rust, oxide, sand, and burrs in foundry, steel construction, pipes, machinery, and automotive parts. The KOTAR product family was developed with the goal of maintaining high hardness and sphericity.
Tosyalı Harsco ensures the recovery of metal within the slag and the classification of the remaining material for suitable sectors. Thus, a part of the side flow generated during steel production is brought back into the economic cycle.
These two companies show that Tosyalı’s product ecosystem does not consist only of raw steel and final steel products; it also covers the areas of surface preparation and resource efficiency.

How to Choose the Right Tosyalı Company According to Need?

To turn to the right group company, first the type of product needed must be determined.

For hot-rolled flat steel or structural profile needs, Tosyalı Demir Çelik can be examined.

For billets and ribbed rebar, Tosyalı Metalurji should be evaluated; for wire rod and related long products, Tosyalı Filmaşin should be considered.

For tinplate, cold-rolled, full hard, galvanized, and painted flat steel products, Tosyalı Toyo has the right product focus.

For ERW pipes, hollow sections, and related steel solutions, Tosçelik can be examined; for spiral welded pipe projects, Tosçelik Spiral should be checked.

For low-carbon steel shot, contact can be made with Tosçelik Granül; for slag processing and metal recovery, contact Tosyalı Harsco.

How to Verify Factory Information in Turkey?

When researching an iron and steel factory, one should not rely solely on old lists and directories in search results.
The following steps can be followed for up-to-date control:

• Examining the company's official corporate site
• Checking product groups and production matrices
• Verifying facility addresses from the current contact page
• Examining the facility and product scope of quality certificates
• Confirming capacity information from current corporate statements
• Distinguishing between the service center and the production facility
• Checking the product distribution among group companies

The Tosyalı Holding group companies page can be used as a primary reference for Tosyalı’s current domestic company structure and subsidiaries.