KAMDHENU ISPAT LIMITED - Securities and Exchange Board of India

B.TMT Tempcore Bars
The Tempcore process is the best process for the production of high quality Rebars because it replaces costly alloy
elements like Vanadium and Niobium with low cost raw material. It results in high mechanical properties, excellent
weldability, excellent ductility& bendability. It imparts high strength to the bar using the latest technique of thermo
mechanical treatment (TMT).
Steel billets are heated in a Reheating Furnace and rolled through a sequence of rolling stands, which progressively
reduce the billet to the final size and shape of the reinforcing bar. According to Tempcore process, the bar leaving the
final stand is submitted to a special heat treatment involving three stages.
Quenching Stage:
The first stage consists of a drastic water cooling applied to the bar as it leaves the last finishing stand. The efficiency
of the water cooling equipment used at this stage has to be as high as to produce a very hard cooling, on the bar
surface, faster than the critical rate to form the martensite so as to obtain a surface layer of crude martensite while
core remains austenite.
Tempering Stage:
In the second stage the bar leaves the water quenching line and is exposed to air. The heat flux from the still hot core
reheats the quenched the by conduction and the martensite formed in the first stage is thus subjected to selftempering
giving a structure called “Tempered Martensite” which is strong and tough. The core is still austenitic at
this stage.
Final Cooling stage
The third stage of “Atmospheric Cooling” occurs on the cooling bed, where the austenitic core is transformed to a
ductile ferrite pearlite core. Thus, the final structure consists of a combination of strong outer layer of tempered
martensite and a ductile core of ferrite-pearlite.
COLLABORATION
The Company has entered into an agreement with Centre De Rechercher Metallurgiques (CRM)Asbi- Avenue du
Bois Saint Jean , 21 – Domaine Universitaire Ddu Sart Tilman(P59) – B-4000 LIEGE, Belgium for use of TEMPCORE
trademark used for identification of high quality steel bars. In accordance with the terms of agreement Kamdhenu
built a thermoprocessing line with technical know how and engineering of Hariths Engineering, Bangalore. CRM
grants to Kamdhenu a non exclusive, non transferable and conditional right of use of trademark TEMPCORE for
deliver of products manufactured on the above line in accordance with the specified process.
Kamdhenu can use the trademark for products manufactured, delivered and used in India. Kamdhenu has to deliver
high quality products compatible with standards well known for TEMPCORE, particularly in terms of weldability
MANPOWER
The present strength of the Company is 123 employees.
S.No. Name of Department Number of Employees
1 Technical & Administration Staff at Bhiwadi 100
2 Administration ,Marketing and Finance at Registered Office 23
Total 123
The Company also employs contract labour for its manufacturing facility at Bhiwadi, Rajasthan.
RAW MATERIAL-
The major raw material required is sponge iron, mild steel scrap and ferro alloys. These are used to form Steel
billets/ingots. The Company manufacturers about twenty to twenty five percent of steel billets in house by melting
sponge iron and other raw material components such as scrap, ferro alloys. The Company procures approximately
41000 tons of ingots per annum and approximately 18000 tons of waste and scrap. Most of the raw material is
procured from domestic market. .We also buy certain imported raw material from the domestic market
WATER
Water consumption for TMT & Mill Cooling is 18.75 KLD and for domestic purpose consumption is 11.25 KLD. Water
is sourced from RIICO & from a tube well within the factory premises. Water is recirculated and re-used.
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