Tosyalı Demir Çelik San. A.Ş.
www.tosyalidemircelik.com.tr/enTosyalı Demir Çelik
Tosyalı Demir Çelik serves a wide range of industries through the production of hot-rolled flat steel, wire rod, steel angles and structural sections. Combining advanced technology investments at its Sarıseki facility with its rolling mills in İskenderun, the company represents an important part of Tosyalı Holding’s manufacturing operations in Türkiye.
Its product portfolio, production capacity and engineering capabilities support the steel requirements of customers across domestic and international markets.
Sarıseki Facility and Flat Steel Production
Tosyalı Demir Çelik’s Sarıseki facility began production in July 2023 following an investment of USD 2.5 billion. Built on a 450,000-square-metre site, the facility has an annual flat steel production capacity of 4 million tonnes.
Its compact layout integrates production processes within a carefully engineered footprint. Bringing substantial manufacturing capacity together within this area is a defining feature of the facility’s design and process engineering.
Sarıseki supplies flat steel in a range of grades and dimensions for industries including energy, infrastructure, machinery manufacturing and construction.
Hot-Rolled Steel Products and Technical Specifications
The facility offers more than 500 combinations of steel grades and dimensions. Its production capabilities cover grades ranging from S235 to X100, with widths reaching 1,650 mm, thicknesses from 1 to 26 mm and weights of up to 40 tonnes.
Key product categories include:
- Hot-rolled flat steel: A range of grades and dimensions developed to meet different mechanical performance and processing requirements.
- Ultra-low-carbon steels: Products for applications requiring very low carbon content in the steel’s chemical composition.
- Interstitial-free steels: IF steel grades used in applications requiring deep drawing and formability.
- Packaging steels: Steel products for the manufacturing and forming requirements of the packaging industry.
- S700MC series steels: High-strength products used in demanding applications, including bridges and mobile machinery.
- X100 line pipe steels: Steel grades for technically demanding applications such as natural gas pipeline manufacturing.
The term “ultra-low-carbon steel” refers to the carbon content of the steel itself. The carbon emissions associated with manufacturing are a separate consideration, assessed through production processes and energy sources.
Advanced Manufacturing Technologies and Energy Efficiency
The Sarıseki facility combines slab casting speeds of up to 2.6 metres per minute with a next-generation rolling system and Industry 4.0-compatible infrastructure.
It is the first facility in Türkiye to use Quantum Furnace technology, which is designed to reduce electricity consumption. This investment supports Tosyalı Demir Çelik’s approach to improving energy efficiency and strengthening its low-carbon steelmaking capabilities.
Its integrated casting and rolling infrastructure enables the production of steel with a broad range of strength, quality and dimensional characteristics for different industrial applications.
Steel Angles and Structural Sections from the İskenderun Rolling Mills
Tosyalı Demir Çelik’s rolling mills in İskenderun began production in 1994. Steel angles were added to the production portfolio in 1995.
A second rolling mill was commissioned in 2001, doubling production capacity and expanding the product range to include IPN, UPN and IPE structural sections.
The rolling mills occupy a total area of 17,667 square metres, including 13,000 square metres of covered space, and have an annual production capacity of 550,000 tonnes.
Steel Angle and Structural Section Size Ranges
| Product category | Size range | Thickness |
|---|---|---|
| Steel angles | 30–120 mm | 2.8–13 mm |
| UPN channels | 50–160 mm | According to section dimensions and technical specifications |
| IPN sections | 80–160 mm | According to section dimensions and technical specifications |
| IPE sections | 80–160 mm | According to section dimensions and technical specifications |
Products are manufactured in standard and custom lengths to meet different project and fabrication requirements.
Applications for Steel Angles and Structural Sections
Tosyalı Demir Çelik’s steel angles and structural sections are used in electricity transmission lines, steel structures, machinery manufacturing and various industrial applications.
Product selection depends on the required section dimensions, steel grade, mechanical properties and applicable project specifications.
Wire Rod Production and an Expanded Long Steel Portfolio
The Sarıseki site, commissioned in 2023, includes a wire rod facility with an annual capacity of 600,000 tonnes, alongside its steelmaking infrastructure with an annual liquid steel capacity of 4 million tonnes.
This investment expanded Tosyalı Demir Çelik’s long steel portfolio and brought the consolidated annual wire rod production capacity of Tosyalı’s companies operating in Türkiye to 1.3 million tonnes.
A Broad Steel Portfolio for Industrial Applications
Tosyalı Demir Çelik brings together flat steel, wire rod, steel angles and structural sections within a single corporate manufacturing organisation. Advanced technology investments at Sarıseki and the production experience of the İskenderun rolling mills support its ability to meet different industrial requirements.
With a focus on product quality, manufacturing efficiency and the effective use of resources, the company continues to serve customers in Türkiye and international markets.
