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Differences Between Plain Round Steel Bars & Deformed Rebars in Construction?

Steel is the backbone of modern construction, providing essential strength and stability to structures of all sizes. Among the various types of reinforcement steel products, Plain Round Steel Bars and Deformed Rebars are two primary options widely used across projects.
While they might seem similar at first glance, their differences play critical roles depending on the requirements.

In this blog, we break down the key differences between these two reinforcement options, helping you make the right choice for your construction needs.

1. Surface Characteristics
Round Steel Bars:
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These bars have a smooth surface without any ridges or deformations.
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Commonly referred to as “plain bars“.
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They are typically used in lighter structural applications where high tensile bonding is not critical.

Deformed Rebars:
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Deformed rebars have ribs, indentations, or projections rolled onto their surface during manufacturing.
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These deformations provide high bond with concrete, significantly improving bond strength.
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Ideal for critical applications like beams, reinforcing pre-cast concerete , columns, and slabs.

At AGBS, we manufacture high-quality ECAS and DCL Certified deformed reinforcement steel bars that meet international standards (BS 4449, ASTM A615, ISO 6935-2), ensuring superior concrete bonding and structural performance.

2. Mechanical Properties
Round Steel Bars:
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Generally exhibit lower yield strength and lower tensile strength compared to deformed rebars.
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Used where flexibility or lower stresses are acceptable.
Deformed Rebars:
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Specifically manufactured to achieve higher yield strength and enhanced ductility.
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Designed to resist greater tensile stresses and provide better reinforcement against structural loading.

3. Usage in Construction
Round Steel Bars:
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Used in light structures, pavement slabs, railings, non-critical structures, and temporary works.
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Suitable for situations where appearance or ease of bending and fabrication are priorities over tensile performance.
Deformed Rebars:
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The standard reinforcement choice for Pre-cast, high-rise buildings, bridges, tunnels, foundations, and critical infrastructure.
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Mandatory in almost all load-bearing concrete structures.

Why Choose AGBS?

At Al Gurg Building Services (AGBS), we pride ourselves on being one of the UAE’s first & leading DCL & ECAS certified manufacturers of cold drawn deformed reinforcement steel bars & coils. We also supply mild steel plain round bars.

Our commitment to quality, compliance, and customer satisfaction ensures that every bar produced supports safer, stronger, and more sustainable construction across the UAE. AGBS’s DCL and ECAS-certified deformed rebars and wide range of reinforcement steel products are commited deliver unmatched reliability and quality assurence.

📞 Contact us today and build with confidence

🏗️ Read about: Why Choose DCL Certified reinforcement steel products for Dubai projects

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