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Vijay TMT Bars





Vijay TMT steel bars, a prestigious product of Kamakshi Steels Pvt. Ltd. that enjoys two-decade-old reputation. Earlier, known as SDV Steels, it made a mark in the making of quality reinforced steel bars using new-age technology in Andhra Pradesh. Vijay TMT is proud of being an ISO 9001: 2000 certified company offering quality products.

Vijay TMT in tune with the changing new technology manufactures TMT steel bars that carry the following unique features :

  • Ideal for all types of concrete structures.
  • Higher corrosion and seismic-resistance.
  • Easy bendability and weldability
  • High-yield strength
  • High temperature-resistant, dimensional tolerance and many more


Vijay TMT bars contain lower corbon levels as these are made in Fe 415 [in future Fe 500. Fe 550], IS : 1786 grade. This Chemical composition leads to superb ductability, extreme bendability and excellent weldability.

The product is the next generation high-yielding strength and ductile steel bar. It gives consistent quality on par with global standards. The grade 500 gives 18% to 25% elongation. The users get 10% to 15% savings in steel used in RCC structures. They can also find very negligible loss of strength at as high temperature as at 500o C.

The Applications
Vijay TMT steel bars have become synonymous for strength and durability and are used in the constructions of all types of concrete structures including sky scrapers, everywhere.

The Process
It�s the best process for making supreme quality steel bars. Steel billets are heated and rolled through a sequence, the parcel leaving the final stage for a special three - stage heat treatment.

The phases of production process

  • Phase-1
    Steel Billets : Direct reduced iron (DRI) undergoes a melting process in a furnace for refinement to make high-quality steel billets.
  • Phase-2
    Reinforcing Bars : The billets with chemical compositio are further heated in a mini processor-based PLC-controlled furnace and rolled through series to reduce billets to final size and shape of reinforced bars.
  • Phase-3
    TMT Bars : The bars that come out of mill stand with 12500 temperature are cooled in an automised quenching box with TMT technology. This uniform surface hardening treatment gives the steel extra strength and adhesive layering.
  • Phase-4
    Tempered Martensite : Rebars from quenching box with core temperature being higher than surface roll through tempered martensite process to make rebars strong and tough.
  • Phase-5
    Unique Conversion : In the final phase and on the cooling bed, the product is reduced to ambient temperature. The austenitic core is charged with a ductile ferrite pearlite core, thus making the outer layer strong and tough.


Chemical Arrangement
Vijay TMT bars contain lower carbon levels as these are made in Fe 415 [in future Fe 500, Fe 550], IS : 1786 grade. This Chemical composition leads superb ductability, extreme bendability and excellent weldability.

Scope
As per Indian standard the strength grades Fe415, Fe 500 and Fe 550 are covered by the requirements of Vijay TMT bars, for using these as reinforcement concrete.

Elongation
When a tensile test bar is subjected to under constant stress, increase in length is arrived at, resulting in elongation.

Tensile Strength
Ultimate tensile stress is, when maximum load reached in a tensile test divided by productive and effective cross - sectional area of the gauge length portion of the test bar. This process involved is known as tensile strength.

Specified Lengths
Vijay TMT bar can be cut within certain deviations of + 75mm on the length specified is the -25 cases minimum lengths, the deviations should not exceed +50mm and -0 mm.

Nominal Mass
The density of Vijay TMT at 0.00785 kg/mm2 of the cross-sectional area/m run should be applied, while checking the nominal mass.

Customer Friendly
Vijay TMT is the next generation high-yielding strength and ductile steel bar. It gives consistent quality on par with global standards. The grade 500 gives 18% to 25% elongation. The users get 10% to 15% savings in steel used in RCC structures. They can also find very negligible loss of strength at as high temperature as at 500C.

Chemical Properties

 

Parameters Unit IS : 1766 Vijay TMT Bar
Carbon % 0.30**max 0.17-0.24
Carbon Equivalalent      
(C+Mn/6) % - 0.38 max
Sulphur % 0.060 max 0.045 max
Phosphorous % 0.60 max 0.045 max
S & P % 0.110 max 0.090 max
Nitrogen ppm - 100 max


Mechanical Properties

 

Parameters Unit IS : 1786 Gr.-Fe 415 Vijay Gr. - Fe 415
Yield Strees N/mm2 415 min 450 min
Tensile Strees N/mm2 10% more than ys but not less than 485 10% more than ys but not less than 520
Elongation % 14.5 min 22 min

Specifications

Type Tmt Bar
Material steel
Shape Round
Application Construction
Color metallic

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