TMT steel bars compliments “Reinforced Cement Concrete” (RCC) which has become an integral part of every structure, be it a multi-storeyed building, a tunnel, a flyover, or a TV tower.With TMT, RCC can be moulded into any desired shape with which the steel rebars will gain the ability to withstand any load made to act upon them.These unnecessary forces can be developed by any live or dead load acting upon the structures thus causing loss of life and property.In order to secure the creations of mankind and to make them ever lasting for generations to come, the steel rebars should conform to the best in class quality standards.
JSPL 500D high strength rebars conforms to IS 1786:2008, Fe 500D & Fe 550D, grade in normal EQR (Earthquake Resistant) & CRS (Corrosion Resistant) quality and Fe600 grade. JSPL TMT is available in 6-50(mm)(6,8,10,12,16,20,25,28,32,36,40,45,50), where 6-12 mm is available in coil as well as straight form.
TMT Rebars are hot rolled from cast billets and are subjected to microprocessor controlled thermo-mechanical treatment in following three stages:
Step 1: Quenching
The hot rolled bar leaves the finishing mill stand at 1050 deg Celsius which is rapidly quenched by special split style nozzle cooling process. The quenching converts the billet’s surface layer to martensite, which causes it to shrink. The shrinkage pressurises the core helping it to form the correct crystal structures, while the core remains hot and austenitic.
Step 2: Self Tempering
The bar leaves the quench box with a temperature gradient through its cross section and as the bar cools, heat flows from the bar centre to its surface and the bar heat and pressure correctly tempers an intermediate ring of martensite and bainite.
Step 3: Atmospheric Cooling
Finally, the slow cooling after quenching automatically tempers the austenitic core to ferrite and pearlite on the cooling bed , which now has a strong and tough , tempered martensite on the surface layer of the bar :an intermediate layer of tough martensite and bainite and a refined , ductile ferrite and pearlite core.
The following points give Jindal PantherTM TMT Rebars an advantage over their competitors:
Jindal PantherTM TMT Rebars are produced using the superior and clean steel billets produced at JSPL, Raigarh through the BF+DRI-EAF-LRF-CCM route with highly controlled steel chemistry, very low levels of sulphur and phosphorus (less than 0.035%), and very low levels of inclusion and tramp elements. Our Steel making and TMT manufacturing process has to pass through strict quality control norms in our laboratories, which are NABL (National Accreditation Board of Laboratories) certified, which confirms the purity and quality in Jindal PantherTM TMT Rebars.
Jindal PantherTM TMT Rebars are sold in retail shops only in pieces.
Jindal PantherTM TMT Rebars in pieces offer you the following advantages:
Often due to the interaction of the rebar with moisture and air, the surface of the rebar develops a reddish colour which is being misunderstood as corrosion. In fact, reddish rebar can be used for construction without any hesitation, as long as they are in proper physical shape, weight and strength.