Shyam Steel’s TMT rebars come with a series of inherent advantages like consistent quality along with uniform grades, dimensions and tolerances. It also comes with superior stability, properties for higher durability and easy workability. Its integrated steel plant at Durgapur has DRI Unit, SMS Unit(EAF), Continuous Billet Casting Mill, sophisticated Rolling Mill and fully-equipped Testing laboratories – all under one roof. The Company has received ISO – 9001, 14001 and OHSAS 18001 certification.
Shyam Steel is offering the widest range of construction steel. Its range of TMT Re-bars suffices the rarest need of a civil engineer. The range of Structural Steel offered by the company meets the maximum demands of the engineering sector.
TMT ReBars Fe 550D
Shyam Steel’s Fe 550D TMT Rebars meet all 7 stringent evaluation standards:
✔ Product Design
✔ Product Performance
✔ Manufacturing Process
✔ Waste Management
✔ Life Cycle Approach
✔ Product Stewardship
✔ Innovation
GreenPro Certification
The GreenPro certification guarantees informed choices for eco-friendly purchases.
Shyam Steel FE 550D TMT Rebars has earned GreenPro certification, achieving all required credit points for green and sustainable manufacturing process.
FE 550D TMT ReBars – Safety Standards
- Strength and corrosion resistance are another 2 sections where our FE 550D TMT Rebars have outperformed
- Our FE 550D TMT Rebars have compliance with Seismic Safety Standards
- As per Indian Railways (RDSO) & IS 13920:2016 (Amendment 2), TMT Rebars must meet the following criteria for all seismic zones:
1️.0.2% Proof Stress/YS: Minimum 415/500/550 MPa
2️.Elongation: Minimum 14.5%
3️.TS/YS Ratio: Minimum 1.15, Maximum 1.25
4️.Maximum YS: 1.2 × Minimum YS
Among these grades listed, Fe 550D fully complies with RDSO & IS:13920:2016 Amendment 2 requirements.
- Shyam Steel 550D TMT Rebar has impeccable balance of strength and flexibility
Physical properties of FE 550D as per IS 1786:2008
| Properties | IS 1786: Fe 550D | Shyam Steel Fe 550D |
| 0.2% Proof Stress/YS (MPa)min | 550 | 580 |
| UTS/YS ratio | 1.08 | 1.19 |
| Elongation (Min – %) | 14.5 | 20 |
| Ultimate Tensile Strength (Min) -n/mm^2 | 600 | 680 |
| Total Elongation at max force (% min) | 5.0 | 6.0 |
Chemical composition of FE 550D as per IS 1786:2008
| Constituent %Max | IS 1786: Fe 550D | Shyam Steel Fe 550D |
| Carbon | 0.25 | 0.2 |
| Sulphur | 0.040 | 0.024 |
| Phosphorus | 0.040 | 0.034 |
| (Sulphur+Phosphorus) | 0.075 | 0.058 |
| Carbon Equivalent (Max%) | 0.6 | 0.033 |
Why Choose Shyam Steel Fe 550D Over Secondary Producers?
| Properties | FE 550D TMT Rebars | Secondary Producers |
| Raw Material | Uses virgin Iron Ore/Pellets in a highly sophisticated plant, ensuring top-notch TMT Rebars | Uses scrap or ingots with no quality control |
| Manufacturing Process | Primary route (DRI-EAF/BF-BOF) ensures controlled chemistry. | Use an induction furnace, making it difficult to control steel composition |
| Integrated Process | Fully integrated manufacturing in a single location | TMT Rebars and ingots are manufactured separately, leading to inconsistency |
| Testing Facility | Computerized UTM and Spectrometer for precise testing | Traditional UTM and outdated chemical testing methods. |
| Certifications | NABL-certified, Government-approved testing lab | No lab certification |
| Physical Properties | High strength, elongation and superior ductility | Inconsistent strength, elongation and ductility |
| Chemical Properties | Consistent and homogeneous for enhanced durability | Non-homogeneous, leading to quality variations. Non-homogeneous composition leading to quality variations |
| Bond Strength | Uniform, square RIB pattern ensures superior bonding | Weak bond strength due to non-uniform, curved RIB pattern |
| Unit Weight | Guaranteed and consistent | No weight guarantee |
| Microstructure | Uniform and refined | Non-uniform |
| Fire Resistance | Withstands temperatures up to 600°C | Can only withstand up to 250°C |
| Network and Availability | PAN India presence | Limited to local markets |
TMT ReBars Fe 500D
8 | 10 | 12 | 16 | 20 | 25 | 28 | 32 | 36 |
High Strength for Critical Applications
The Shyam Steel Re-bars Fe 500D is a special grade of TMT Re-bars produced under specific process conditions resulting in increased strength as compared to other grades of TMT Rebars. Fe 500D Rebars are ideal for applications in heavy load RCC structures like flyovers, dams, bridges and other critical structures where high yield load (design load) is required without compromising on the ductility. In addition to the features of Shyam Steel TMT Re-bars exhibit the following characteristics
Special Weldability
Shyam Steel TMT Re-bars do not require pre or post welding treatment as they have low carbon content and are produced under controlled thermomechanical treatment.
Higher Corrosion Resistance
The controlled thermomechanical treatment also results in a uniform and thick tempered martensitic rim, completely free from internal stress. This martensitic rim improves the corrosion resistance as well as fatigue strength of the Shyam Steel TMT Rebars Fe 500D when compared to other TMT Re-bars.
Cost Advantage
Ast = 0.85xMxD/fy where,
Ast = Area of Steel in tension M=Moment in Tension
D = Depth of Section fy =Stress of Steel in tension
Therefore, it is evident from the above calculations that higher the tensile strength, lesser is the consumption of steel.
| Type of Structure | Steel requirement by using Fe 415 | Steel requirement by using Fe500 | Saving in Steel by using Fe 500 |
|---|---|---|---|
| RCC Foundation Heavy Beam | 1.00 MT | 0.83 MT | 1.70 Kg |
Or Fe 415/415 D is 415N/mm2 and 500 N/mm2 for Fe 500D TMT Re-bars.
Shyam Steel TMT Re-bars Fe 500D is effective over usual HYSD Steel Bars. It saves upto 17% of steel.
Properties
| Description | IS: 1786 Fe 500 | Shyam 500 TMT Re-bars | IS: 1786 Fe 500 D | Shyam 500D TMT Re-bars |
|---|---|---|---|---|
| 0.2% Proof Stress(min N/mm2) | 500 | 540 | 500 | 560 |
| Ultimate Tensile Strength (min N/mm2) | 545 | 640 | 565 | 660 |
| %Total Elongation at max force min | – | – | 5 | 6 |
| %Elongation.min | 12 | 18 | 16 | 20 |
| Bend | 4d to 5d | 3d to 4d | 3d to 4d | 2d to 3d |
| Rebend | 5d to 7d | 4d to 6d | 4d to 6d | 3d to 5d |
| Carbon (% max) Phosphorous & Sulphur (% max) | 0.300 0.055 | 0.250 0.050 | 0.25 0.040 | 0.22 0.035 |
| Phosphorous + Sulphur (% max) | 0.105 | 0.095 | 0.075 | 0.065 |
| CE (% max) | 0.42 | 0.400 | 0.42 | 0.350 |
| Nitrogen (ppm max) | 120 | 100 | 120 | 100 |
CRS TMT ReBars
Worldwide demand for Microalloyed low alloyed Re-bars generates majorly from industries like Power, Oil and Gas extraction, Road & Bridge construction and Port development. This is due to their improved strength-ductility, corrosion properties as well as increased toughness.
Shyam Steel CRS TMT Re-bars have been tested in rigorous corrosion media and evaluated for various corrosion resistance properties as per ASTM standards viz. Alternate immersion test, salt spray test, atmosphere exposure test, sulphur Di Oxide test and Potentiodynamic test. As per the different types of corrosion test Shyam Steel CRS TMT Rebars more corrosion resistant than normal TMT Rebars available in the market.
Corrosion Resistance Index (CRI)
| Type of Test | Non CRS TMT Re-bars | CRS TMT Re-bars |
|---|---|---|
| Potentio Dynamic Test | 1.0 | 2.35 |
| Salt Spray Test | 1.0 | 1.59 |
| Sulphur Dioxide Test | 1.0 | 1.68 |
| Alternate Immersion Test | 1.0 | 1.92 |
Certification
Shyam Steel Re-bars have been tested at a number of reputed national institutes like IIT Kanpur and National Test House, under actual service conditions. The field data obtained in actual service condition demonstrates its durability compared to other TMT Re-bars.
Advantages
- No additional precaution required in material handling and transportation
- No additional preparation for storage or working at site
- No maintenance during fabrication
- Workable at poor site conditions
- Lifespan cost-benefit
- No extra precaution during welding
A Proud Presence throughout India
Shyam CRS TMT Re-bars have been used in projects like
- Kerala Water Board Project
- NTPL Tuticorin TPC, Tamilnadu
- Paradip National Highway, NHAI
- Haldia Port National Highway, NHAI
- Indian Oil Corporation Ltd, Haldia
- Kandla Port Trust
- JNPT IOCL Terminal
- Reliance KG Basin
- Mahegenco Bhuswal TPS Expansion
- Apgenco Krishnapatnam TPS
Shyam CRS TMT Rebars are ideal for
- Oil & Gas Exploration Sites
- Dams & Bridges
- Highways & Flyovers Construction
- Ports & Jetties
- Thermal & Hydel Power Station
- Industrial Structures
- Hazardous Area Construction