Steel Rebar Manufacturers and Types Steel Bars in Construction
Introduction
Reinforcing steel bars, widely referred to as rebar, are a fundamental component in reinforced concrete structures. Their main function is to enhance the tensile strength of concrete, which is naturally weak under tension. With the increasing demand for durable, earthquake-resistant infrastructure, the global market for rebar has grown significantly. Turkey, as one of the largest steel producers in Europe and the Middle East, plays a critical role in the supply chain Steel Rebar Manufacturers.
Common Types of Rebar in the Construction Industry
| Rebar Type | Description | Common Applications |
|---|---|---|
| Mild Steel Bars (Plain Rebar) | Smooth surface, easy to cut and bend. | Residential buildings, lightweight structures. |
| Deformed Bars (Ribbed Rebar) | Surface has ridges or indentations for better bonding with concrete. | All structural concrete works, bridges, tunnels. |
| TMT Bars (Thermo Mechanically Treated) | High strength, corrosion-resistant, earthquake-proof. | High-rise buildings, coastal projects. |
| Epoxy-Coated Rebar | Coated to prevent corrosion. | Marine structures, sewage plants. |
| Stainless Steel Rebar | Excellent durability and resistance to corrosion. | High-end construction, water infrastructure. |
| Welded Wire Fabric (WWF) | Prefabricated steel mesh sheets. | Flooring, pavements, and slab reinforcements. |
Major Rebar Manufacturers in Turkey
Turkey is not only a top producer but also a key exporter of rebar. The country’s manufacturing capabilities are supported by advanced technology and compliance with international standards like ASTM, BS, DIN, and TS.
| Manufacturer | Location | Capacity (Approx.) | Export Regions |
|---|---|---|---|
| İçdaş A.Ş. | Çanakkale | 3.5 million tons/year | Middle East, Europe, Africa |
| Kaptan Demir Çelik | Marmara | 2 million tons/year | Balkans, North Africa |
| Habas Industrial | Aliağa | 2.5 million tons/year | EU, USA, MENA |
| Erdemir Group (OYAK) | Ereğli & İskenderun | 9 million tons/year (total) | Worldwide |
| Çolakoğlu Metalurji | Gebze | 3 million tons/year | Europe, Far East |
All these manufacturers operate under ISO 9001 and ISO 14001 certifications and provide both domestic and export-grade rebar products.
Quality Standards and Certification
To be eligible for global projects, rebar manufacturers must comply with:
- ASTM A615 / A706 – USA standard for carbon-steel and low-alloy bars.
- BS 4449 – British Standard for steel reinforcement.
- DIN 488 – German standard often followed in the EU.
- TS 708 – Turkish Standard for rebar production.
- ISO 6935-2 – Global harmonized standard for ribbed bars.
ATABAŞ GRUP partners only with certified producers, ensuring reliability and quality across all supply chains.
Conclusion: Why It Matters
Choosing the right type of rebar—and the right manufacturer—is crucial to ensure structural integrity, safety, and longevity in construction projects. Turkey’s manufacturing sector continues to offer high-quality rebar at globally competitive prices, backed by strong logistics infrastructure.
For industrial buyers, working with trusted suppliers like ATABAŞ GRUP, who manage the full process including logistics, export documentation, and customs clearance, ensures efficiency and peace of mind.
Reinforcement steel bars (rebar) vary not only by diameter but also by surface characteristics. The most common classification distinguishes between plain (smooth) and deformed (ribbed) rebars. Their size and surface structure determine how and where they are used in construction. Understanding these distinctions is critical when selecting the appropriate steel for structural integrity and project durability.
Classification Table: Rebar Types by Size and Texture
| Rebar Diameter (mm) | Type | Surface Texture | Typical Applications |
|---|---|---|---|
| 6 mm | B500A / B420A | Plain | Light structural frames, tie wires, cages |
| 8 mm | B500A / B420A | Plain | Masonry reinforcements, lintels |
| 10 mm | B500B | Deformed | Foundations, small beams, staircases |
| 12 mm | B500B | Deformed | Load-bearing walls, residential slabs |
| 14 mm | B500B | Deformed | Multi-story columns, heavy slabs |
| 16 mm | B500B | Deformed | Footings, commercial foundations |
| 18 mm | B500C | Deformed | Columns in seismic zones |
| 20 mm | B500C | Deformed | Bridge piers, industrial floors |
| 22 mm | B500C | Deformed | Tunnels, reinforced concrete frames |
| 25 mm | B500C | Deformed | Skyscraper columns, wind towers |
| 28 mm | B500C | Deformed | High-rise beams and footings |
| 32 mm | B500C | Deformed | Heavy bridge structures, power plants |
| 40 mm | B500C | Deformed | Infrastructure like dams, harbors |
Key Characteristics
Plain Rebars (Non-Deformed)
- Surface: Smooth, round profile.
- Bonding: Lower adhesion to concrete.
- Advantages: Easier to bend and cut; used for ties, stirrups, and cages.
- Limitations: Not recommended for heavy load-bearing components.
Deformed Rebars (Ribbed / Textured)
- Surface: Ridges or patterns for higher grip in concrete.
- Bonding: Excellent adhesion due to mechanical interlock.
- Advantages: Superior tensile performance and durability.
- Standards: Common grades include B500B and B500C (TS 708, BS 4449, ASTM A615).
Rebar Selection by Project Type
| Project Type | Recommended Rebar Diameter | Texture |
|---|---|---|
| Residential Housing | 8–14 mm | Mixed (Plain for ties, Deformed for load-bearing) |
| Commercial Buildings | 12–25 mm | Deformed |
| Infrastructure (bridges, dams) | 20–40 mm | Deformed |
| Precast Elements | 6–12 mm | Usually Plain |
| Tunnels & Underground | 16–28 mm | Deformed |
| High Seismic Zones | 16–32 mm | Deformed (with higher ductility) |
Conclusion
Choosing the correct type and size of rebar is essential for construction safety and cost-efficiency. Plain rebars are ideal for auxiliary support elements, while deformed rebars are indispensable in high-load and structural applications.
At ATABAŞ GRUP, we supply a wide range of reinforcement bars—from 6 mm plain ties to 40 mm ribbed bars—sourced from certified Turkish and international mills. Our team ensures all bars meet global quality standards such as TS 708, ASTM A615, and BS 4449, guaranteeing long-term performance and compliance.