Phone:
+91 8592-050-560
Location:
Mongam Po, Malappuram Dt, Kerala, 673642
Kamachi 500D
Kamachi 550D Steel
Backbone of Infrastructure
Superior strength, durability, and trusted performance for your construction projects.
“At our steel distribution company, we take pride in providing superior quality steel products, timely deliveries, and exceptional customer service.”
About Kamachi
Kamachi crafts TMT Bars with great care and precision in South India’s first, largest, fully-integrated and dedicated TMT Rebar plant spread over 200 acres with 0.5 million tons capacity.
Kamachi TMT bars are manufactured in a single compound using advanced German Technology, Sophisticated machineries, Patented Slit Process and automation that demands the highest quality of raw material. This process ensures consistent quality across the entire length of bar and across the entire batch.
State of the art Robotic Tamper proof testing equipments ensure Kamchi deliver what Kamachi promise.
The World of World Class TMT Bars
As Kamachi looks to the future, they have anticipated what will be required for our country to achieve lean steel structures that are the strongest and offer value for money.
Kamachi Steel offers the widest range of strength allowing engineers to choose the right steel for the right place enabling significant advantage in construction.
All Kamachi grades of steel are produced using technology that gives them two desirable properties simultaneously, higher strength and higher ductility, thereby making it most suitable for earthquake-resistant structures. Higher strength is achieved by the addition of certain alloying elements and keeping the percentage of carbon lower, ensuring the steel remains sufficiently ductile.
Ductility is the degree of plastic deformation before fracture or simply how much strain a material can withstand before fracture.
Chemical Properties
| Rebar Grade % | BIS Fe 500D | Kamachi Fe-550D |
|---|---|---|
|
Carbon |
0.25 |
0.20-0.25 |
|
Silicon |
- |
0.15-0.25 |
|
Manganese |
- |
0.90-1.00 |
|
Sulphar (Max) |
0.040 |
0.035 |
|
Phosphorus (Max) |
0.040 |
0.040 |
|
Sulphar + Phosphorus (Max) |
0.075 |
0.070 |
|
Carbon Equivalnet (Max) |
0.50 |
0.31-0.36 |
Mechanical Properties
| Rebar Grade % | BIS Fe 500D | Kamachi Fe-550D |
|---|---|---|
|
Yield Sress (N/mm2) Min |
500 |
525 |
|
Elongation (Min) |
16 |
18 |
|
Ultimate Tensile Strength (N/mm2) Min |
565 |
600 |
|
UTS/YS Ratio |
1.10 |
1.15 |
Certified By
IAF
SLS: 375:2009
ISO 9001:2015
ISO 14001:2015
ISO 45001:2015
IS 2830, 2012
IS 1786, 2008
IS 2062, 2011
Our Process
Kamachi Fe 500D TMT Rebars are manufactured using unique iron processing, Steel making and rolling process, which makes them stronger, safer and more ductile then any other TMT rebars, thus ensuring utmost quality.
A rebar is not a rebar if it’s not TMT
Thermo mechanical processing, also known as Thermo-Mechanical Treatment (TMT), Is a metallurgical process that integrates work hardening and heat treatment into a single process, while the quenching process produces high strength bars from low carbon steel. The process presses the surface layer of the bar, which pressurises and deforms the crystal structure of the intermediate layers, and simultaneously begins to temper the quenched layers using the heat from the bar’s core.
High Quality output from MWE & Thermex technology
Kamachi rebars are manufactured using patented international technology. The rebar mill is from MWE Germany and the QST (Quenching and self Tempering) technology from Thermex employ state-of-the-art technology to ensure highest quality.
1.Quenching:
The hot rolled bar leaves the finishing mill stand at 900° Celsius which is rapidly quenched in a water box. This is a chamber where water is made to impinge on the surface of the rebar at high pressure by split style nozzle with microprocessor based controlled cooling process. The quenching converts the steel’s surface layer to martensite and causes it to shrink. The shrinkage pressurizes the core helping to form the correct crystal structures, while the core remains hot and austenitic.
2.Self-Tempering:
The bar leaves the quench box with a temperature gradient through its cross-section. As the bar cools, heat flows from the bar's centre to its surface so that the bar's heat and pressure correctly tempers an
intermediate ring of martensite and bainite.
3. Atmospheric Cooling:
Finally, the slow cooling after quenching automatically tempers the austenitic core to ferrite and pearlite on the cooling bed. The bar now has a strong, tough and tempered martensite surface layer, an intermediate layer of tough martensite and a refined, ferrite and pearlite core, giving it the ductile property we are known for.
4. Temperature Control:
A key element to our quality control is identifying and removal of low temperature blooms which may result in low / uneven physical properties in the re-bar. The system automatically activates interlocks through PLC ensuring only the right raw material is rolled to become Kamachi TMT re-bars.
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