Mahan TMT 550D, manufactured by Magadh Industries Pvt. Ltd., is a leading Fe 550D grade TMT bar widely used across Siwan district, Bihar. With a certified yield strength of 550 MPa, high ductility, and excellent moisture resistance, it is designed to perform in challenging climatic and soil conditions. Siwan, located near the Indo-Nepal trade corridor and influenced by the Gandak River system, requires reinforcement steel that can withstand lateral pressure, seasonal flooding, and alluvial soil shifts.
From Daraundha bridge connectivity to Raghunathpur railway expansion and growing commercial construction in Siwan Sadar, Mahan TMT 550D delivers structural stability, crack resistance, and long-term durability. Since Siwan falls under Seismic Zone III, earthquake resistance is an essential requirement. The superior elongation and bend properties of Mahan TMT 550D make it a dependable reinforcement solution for residential, commercial, and public infrastructure projects.
Advanced Thermex Technology for Superior Strength
Mahan TMT 550D is produced at Magadh Industries’ advanced plant in Patna using Thermex technology. This manufacturing process creates a hard outer martensitic layer for high tensile strength and a softer, ductile core that enhances flexibility. The elongation capacity ranges between 17–23%, which is crucial for absorbing stress during earthquakes and heavy load conditions.
The ribbed design of the bar ensures excellent bonding with concrete, reducing slippage and improving load-bearing performance. Contractors in Darauli, Barharia, Andar, Mairwa, and Goriakothi prefer this grade for bridges, warehouses, farm structures, customs facilities, and monsoon-resistant housing.
Price of Mahan TMT 550D in Siwan
The price of Mahan TMT 550D in Siwan typically ranges from ₹55,200 to ₹65,200 per metric tonne, depending on diameter (8mm to 32mm) and market fluctuations. Retail per kilogram rates vary slightly based on transportation and dealer location.
Although steel prices change with raw material costs, Mahan TMT 550D provides approximately 7–12% savings in steel consumption due to its high strength-to-weight ratio. This makes it cost-effective for contractors managing large projects such as bridges, schools, commercial buildings, and government infrastructure.
For accurate daily pricing, buyers should contact authorized dealers in Siwan.
Infrastructure Growth in Siwan District
Siwan is experiencing consistent development driven by trade connectivity, agricultural growth, and infrastructure expansion. Key developments include:
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Gandak bridge strengthening and road connectivity improvements
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Rail connectivity upgrades toward Uttar Pradesh
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Border trade expansion through regional trade corridors
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Rural housing and skill development projects
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Irrigation and sprinkler systems supporting large agricultural areas
As construction demand increases, builders require durable and corrosion-resistant reinforcement steel. Mahan TMT 550D performs efficiently in alluvial soil conditions and moisture-prone environments, making it ideal for Siwan’s geography.
Local Availability & Dealer Network in Siwan
Magadh Industries maintains a strong dealer network across Siwan district to ensure consistent product availability. Mahan TMT 550D is available in all major sizes including 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, and 32mm.
Primary supply locations include:
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Siwan Sadar Bazaar
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Darauli region
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Raghunathpur
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Barharia
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Andar
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Mairwa
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Goriakothi
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Ziradei
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Lakri Nabiganj
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Maharajganj
Dealers provide timely delivery to both urban and rural construction sites. Transportation support ensures supply even during peak agricultural and trade seasons.
Each bar is ISI certified as per IS 1786:2008 standards. QR code verification allows customers to confirm authenticity, batch number, and manufacturing details, ensuring complete transparency.
Why Choose Mahan TMT 550D in Siwan?
1. Strong Earthquake Resistance
Siwan falls under Seismic Zone III. Mahan TMT 550D offers superior flexibility and energy absorption, helping structures withstand seismic shocks.
2. Corrosion & Moisture Protection
The advanced manufacturing process enhances corrosion resistance, making it suitable for flood-prone and humid environments.
3. Excellent Concrete Bonding
High rib strength ensures better grip with concrete, reducing structural cracks and improving durability.
4. Cost Efficiency
Due to its high yield strength, less steel is required, reducing overall project cost without compromising structural safety.
5. Welding Compatibility
Low carbon composition ensures good weldability, which is beneficial for complex structural frameworks and bridge reinforcements.
Technical Specifications
Mahan TMT 550D complies with IS 1786:2008 standards and offers:
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Minimum Yield Strength: 550 MPa
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Ultimate Tensile Strength: Approximately 590 MPa
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Elongation: 17–23%
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Superior bend and rebend properties
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High resistance to corrosion and moisture
These specifications make it ideal for bridges, commercial buildings, residential complexes, border infrastructure, agricultural warehouses, and public facilities in Siwan.
Key Areas Covered in Siwan
Mahan TMT 550D is widely used throughout Siwan district, including:
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Siwan town
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Darauli
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Raghunathpur
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Barharia
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Andar
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Goriakothi
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Ziradei
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Mairwa
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Lakri Nabiganj
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Maharajganj
Urban markets are served through established dealer outlets, while rural regions receive supply through extended distribution channels.
Customer Trust & Performance
Builders and contractors across Siwan appreciate the consistent strength, flexibility, and reliability of Mahan TMT 550D. Many infrastructure projects have reported improved structural stability and reduced cracking issues. Its performance during monsoon seasons and heavy load conditions has strengthened its reputation in the district.
The combination of strength, ductility, and corrosion resistance ensures long-term safety for residential and commercial structures.
Become an Authorized Dealer in Siwan
Magadh Industries offers dealership opportunities in Siwan district. Building material suppliers and entrepreneurs can partner with the company to distribute Mahan TMT 550D locally. With growing construction demand and strong brand trust, it presents a promising business opportunity.
Conclusion
Mahan TMT 550D is a technically advanced, durable, and cost-effective reinforcement solution for Siwan, Bihar. Designed to withstand seismic activity, moisture exposure, and heavy structural loads, it provides reliable performance for bridges, homes, warehouses, and public infrastructure. With strong dealer support, certified quality standards, and competitive pricing, it remains one of the most trusted TMT bars in Siwan’s construction market.
For the latest price updates, bulk supply, or dealership inquiries, contact your nearest authorized Mahan TMT 550D dealer in Siwan today.