Every ARS TMT bar is backed by consistent manufacturing, rigorous testing, and transparent technical documentation to support specification-led construction.
TECHNICAL FOUNDATION
Selecting reinforcement steel goes beyond grade and price. Engineers evaluate mechanical performance, material consistency, manufacturing quality, and compliance with applicable standards to ensure every structure delivers the required strength, durability, and service life.
The chemical composition of TMT bars directly influences strength, weldability, ductility, and long-term performance. Maintaining controlled levels of Carbon (C), Sulphur (S), Phosphorus (P), Manganese (Mn), and Carbon Equivalent (CE) helps achieve consistent mechanical properties while meeting the requirements of IS 1786.
Mechanical performance determines how steel behaves under structural loads. Engineers typically evaluate Yield Strength (550 MPa), Ultimate Tensile Strength, Elongation, Yield-to-Tensile Ratio, and Bend & Rebend Performance to ensure the reinforcement meets design and seismic requirements.
The Thermo-Mechanical Treatment (TMT) process combines controlled quenching and self-tempering to create a tough outer layer with a ductile core. This improves strength, bendability, weldability, and earthquake-resistant performance without compromising structural reliability.
Uniform rib geometry improves the bond between steel and concrete, enabling efficient load transfer and reducing the possibility of slippage. Consistent rib patterns also contribute to better structural stability throughout the service life of reinforced concrete.
Clear product embossing, heat numbers, and batch identification allow engineers, contractors, and quality teams to verify product authenticity and maintain traceability from manufacturing through project execution.
Reliable manufacturers provide comprehensive technical documentation, including product specifications, mill test certificates, chemical composition reports, and mechanical test results, enabling engineers to verify compliance before specification and procurement.
WHY ARS
For over 35 years, ARS has partnered with engineers, architects, consultants, contractors, and infrastructure developers by delivering TMT bars that combine consistent manufacturing, verified quality, and dependable technical support. Every bar is produced to meet stringent quality standards, helping professionals specify with confidence across residential, commercial, industrial, and infrastructure projects.
01.
Every ARS TMT bar is manufactured using advanced rolling and Thermo-Mechanical Treatment (TMT) technology to achieve consistent mechanical properties, dimensional accuracy, and reliable performance. Controlled manufacturing processes help ensure uniform quality across every heat and every batch.
02.
Quality is verified at every stage of production—from raw material inspection to finished product testing. ARS conducts rigorous checks on chemical composition, yield strength, tensile strength, elongation, bend and rebend performance, ensuring compliance with IS 1786 and other applicable quality standards before dispatch.
03.
Every project demands technical transparency. ARS provides comprehensive engineering documentation, including Mill Test Certificates (MTCs), chemical and mechanical test reports, product specifications, and technical brochures, enabling consultants and project teams to verify compliance before procurement and execution.
04.
ARS products are backed by nationally and internationally recognised certifications, reflecting the company's commitment to quality, sustainability, and responsible manufacturing.
05.
With an established manufacturing base and an extensive dealer network across South India, ARS ensures dependable product availability for projects of every scale. Consistent supply helps minimise procurement delays and supports uninterrupted construction schedules.
06.
Beyond supplying steel, ARS supports project teams with technical guidance throughout the specification and procurement process. Whether it's selecting the appropriate TMT grade, understanding product performance, accessing technical documentation, or locating authorised dealers, our team is available to assist every step of the way.
ENGINEERED SOLUTIONS
ARS offers certified Fe550D and CRS 550D TMT bars engineered for different structural and environmental requirements, helping engineers and architects specify with confidence.
ARS CRS Fe 550D
Corrosion-resistant reinforcement for high-salinity, humid, and demanding environments while maintaining the strength and ductility required for durable construction.
ARS Fe 550D
High-strength, ductile reinforcement for structural applications where reliable performance, bendability, weldability, and seismic confidence matter.
| If your project is... | Recommended Choice |
|---|---|
| General structural construction | ARS Fe 550D |
| High-rise or industrial projects | ARS Fe 550D |
| Coastal or high-salinity sites | ARS CRS Fe 550D |
| Marine or water-facing infrastructure | ARS CRS Fe 550D |
FREE TDS TESTING
ARS offers free TDS testing to help engineers and architects assess site water conditions during the planning stage. Understanding TDS levels supports informed material selection, particularly where corrosion resistance is critical. Based on the test results, our technical team recommends the appropriate TMT bar solution to enhance structural durability and long-term performance.
TECHNICAL PERFORMANCE
Every ARS TMT bar is manufactured under stringent quality controls and tested to deliver consistent mechanical performance and chemical composition. The values below represent the typical properties of ARS Fe 550D and ARS CRS Fe 550D, manufactured in compliance with IS 1786.
All values comply with the applicable requirements of IS 1786.
Fe 550D
| Properties | Unit | IS 1786 – 2008 | ARS Fe 550D |
|---|---|---|---|
| Carbon | % | 0.25 Max | 0.25 Max |
| Phosphorous | % | 0.04 Max | 0.04 Max |
| Sulphur | % | 0.04 Max | 0.04 Max |
| P + S | % | 0.075 Max | 0.070 Max |
| *CE (Carbon equivalent) | % | 0.42 Min | 0.35 Min |
| Properties | Unit | IS 1786 – 2008 | ARS Fe 550D |
|---|---|---|---|
| Yield Strength | N/mm2 | 550 Min | 560 Min |
| Tensile Strength | N/mm2 | 600 Min | 630 Min |
| TS / YS | Ratio | 1.08 Min | 1.10 Min |
| Elongation | % | 14.5 Min | 16 Min 22 Max |
Fe 550D CRS
| Properties | Unit | IS 1786 – 2008 | ARS Fe 550D CRS |
|---|---|---|---|
| Carbon | % | 0.25 Max | 0.25 Max |
| Phosphorous | % | 0.04 Max | 0.04 Max |
| Sulphur | % | 0.04 Max | 0.04 Max |
| P + S | % | 0.075 Max | 0.070 Max |
| *CRE (Cr+Cu+Mo+Ni) | % | Not Less than 0.4% | Not less than 0.40% |
| Properties | Unit | IS 1786 – 2008 | ARS Fe 550D CRS |
|---|---|---|---|
| Yield Strength | N/mm2 | 550 Min | 560 Min |
| Tensile Strength | N/mm2 | 600 Min | 630 Min |
| TS / YS | Ratio | 1.08 Min | 1.10 Min |
| Elongation | % | 14.5 Min | 16 Min |
*Corrosion resistant equivalent
CERTIFICATIONS & RECOGNITION
Every ARS TMT bar is backed by recognised certifications, independent testing, and regulatory approvals that reflect our commitment to quality, safety, sustainability, and responsible manufacturing. These recognitions provide engineers, consultants, and project teams with added confidence during specification and procurement.
TECHNICAL CONSULTATION
FAQS
Technical support
Whether you're preparing project specifications, reviewing technical documentation, or selecting the right reinforcement steel, our engineering team is ready to support your project from design to execution.
