rebar A4

Description

Rebar A4 (Hard with Composite Tread) – High Strength Reinforcing Steel Supplier from Iran

Rebar A4, also known as Hard Rebar with Composite Tread, is the fourth grade of reinforcing steel developed for superior mechanical strength, enhanced bonding, and long-term durability. With a yield strength of 500 MPa and a tensile strength of 650 MPa, A4 Rebar is engineered for high-load, high-stress construction projects such as bridges, tunnels, towers, and industrial foundations.

At Call2Supply, we proudly supply and export Rebar A4 from Iran, partnering with the country’s top steel producers — including Amir Kabir Khazar Steel, Khorasan Steel Complex, Esfahan Steel Company, Mianeh Steel, and Bafgh Yazd Steel. Our direct supply chain ensures consistent quality, authenticity, and compliance with international rebar standards.

Detailed Characteristics and Structural Advantages

 A4 Rrepresents a new generation of reinforcing steel featuring a composite tread (ribbed) pattern that enhances the bond between steel and concrete. This special rib geometry increases stress transfer and mechanical interlock, leading to stronger, longer-lasting concrete structures. The higher carbon and alloy content of A4 Rebar provides greater hardness, yield resistance, and fatigue life, making it the preferred choice for advanced infrastructure development.

Thanks to advanced metallurgical control and precision rolling processes, every A4 bar delivers consistent performance under demanding conditions — from seismic zones to industrial foundations. This grade is particularly valued by engineers for its strength-to-weight efficiency, structural reliability, and compliance with modern construction codes.

Key Characteristics and Benefits

• High Strength Performance: Yield strength of 500 MPa and tensile strength of 650 MPa, ideal for heavy-duty and critical structures.

• Composite Tread Design: Provides superior adhesion with concrete, reducing slippage and improving load transfer efficiency.

• Exceptional Durability: Resistant to deformation, stress fatigue, and vibration in harsh construction environments.

• Precision Manufacturing: Produced under strict metallurgical supervision to ensure uniform quality and dimensional accuracy.

• Versatile Applications: Suitable for bridges, high-rise buildings, industrial floors, and reinforced concrete tunnels.

• International Compliance: Fully meets global standards such as ASTM, BS, and ISO requirements for reinforcing steel.

Optimal Handling and Application Methods

To achieve the best performance and safety, A4 Rebar should be processed according to recommended industrial standards:

• Cutting and Bending: Due to its hardness, mechanical bending and cutting tools are required for precise shaping.

• Concrete Integration: The composite tread ensures excellent bonding with concrete, enhancing load-bearing capacity.

• Welding Guidelines: While weldability is moderate due to higher carbon levels, preheating and controlled conditions guarantee strong joints.

• Storage and Transport: Keep rebars dry and covered to prevent surface rust and maintain mechanical integrity before use.

Why Choosing Call2Supply Is a Smart Decision

• Direct Sourcing from Top Iranian Mills: Including Amir Kabir Khazar, Khorasan, Esfahan, Mianeh, and Bafgh Yazd Steel Companies.

• Certified Quality Assurance: Guaranteed mechanical and chemical specifications verified through third-party inspection.

• Rational Export Pricing: Optimized logistics via Persian Gulf and Caspian Sea ports ensure competitive delivery costs.

• Flexible Contract Options: Available for both spot sales and long-term supply agreements to meet your project needs.

• Technical and Export Expertise: Our professional team provides guidance on specifications, welding procedures, and compliance standards.

• Sustainability Commitment: We partner with eco-conscious steel producers, promoting environmentally responsible manufacturing.

If you are looking for a trusted A4 Rebar supplier from Iran, Call2Supply is ready to meet your demand with premium-quality reinforcing steel bars designed for strength, safety, and reliability.
Contact our export team today or submit your inquiry online for fast and secure delivery from Iran’s leading steel mills.