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Vinayak Thermex TMT Bars
Steel of generation next has physical and chemical properties superior to others on various counts.
Vinayak Thermex TMT bar are produced by innovative method of direct charging of continuous cast billets to rolling mill, which leads to the advantages of saving energy, increasing production capacity, reducing burning loss, decreasing rolling defects and better surface finish of finished product.
Vinayak Thermex TMT bars are produced by the state of the art, THERMEX- QST process. The THERMEX QST rebar technology forms an intense and precise inline quenching of the rolled bar, resulting in hardened periphery.
On further cooling of the bar in atmosphere a thermal exchange (THERMEX) takes place between the core and cooled outside Martensite surface, where by the resultant bar structure is a distinct Tempered Martensite at periphery and a fine grained Ferrite-Pearlite structure in the central zone, resulting in superior mechanical properties.
Vinayak Thermex TMT bars have the unique advantage over others because of its strict Quality Assurance Measures.Vinayak Steels Limited is committed to achieve quality excellence.
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(i) Better Safety of structures
because of higher Strength combined with higher Ductility.
(ii) Easy working at site:
owing to better Ductility and Bendability. Pre-welded meshes can be made to eliminate manual binding at site. Reduces constructu and fabrication time.
(iii) Resists fire:
Unlike Ti steel/ CTD Reinforcement bars, TMT but have high thermal stability. They are the preferred choice when elevated temperatures of 400-6000 C may be encountered (Chimneys, fires).
(iv) Resists corrosion:
The TMT process gives the bar superior strength and anti-corrosive properties. Controlled water-cooling prevents the formation of coarse carbides, which has been cited as the main cause for the corrosive nature of common bar. Another reason for better corrosion resistance is the absence of surface stresses caused by the cold twisting process.
(v) Formability:
Due to very high elongation values and consistent properties through out the length of bar, TMT rebars have excellent workability and bendability.
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(vi) Earthquake resistance:
The soft ferrite-pearlite core enables the bar to bear dynamic and seismic loading. TMT bars have high fatigue resistance to Dynamic/ Seismic loads di to its higher ductility quality. This makes them most suitable for use in earthquake prone areas.
(vii) Malleability:
TMT bars are most preferred because of their flexible nature.
(viii) Fine welding features:
TMT rebars (having low carbon content) can be used for butt and other weld joints without reduction in strength at the weld joints.
(ix) Bonding strength:
External ribs running across the entire length of the TMT but give superior bonding strength between the but and the concrete. Fulfils Bond requirements as per IS: 456/78 and IS: 1786/85.
(x) Cost-effective:
A high tensile strength and better elongation value gives you great savings, Reduced Transportation Costs. The figures of these savings as given in SAIL website are reproduced below:
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