World-Class Technology Lotus TMT steels bars are based on the latest technology & design which guarantees the properties to
produce as per international standards. German BST 4205 / 5005 of DIM 488, British Gr.460 of Bs 4449-1988 Egyptian Standard 262/1988 Gr.36/52
and 40/60, Fe-514,500 & 550 of IS:1786/85, JIS.G.3112 1975 5D30, 35, 40, 45 & 50 Swiss to par 5505 of SIA 162, French Fe-E50 of NF A35-016.
High strength reinforcement bar in grades of Fe-415, 500, and 550 as per IS:1786/'85, that achieve their properties by onOline computerised
controlled thermo processing.
THE STEEL DIVISION INVOLVE IN FOLLOWING ACTIVITIES
LOTUS TMT Bars in BIS Grade : Fe-415/415D, Fe-500/500D, Fe-550/ 550D & Fe-600. Sizes: 8 to 32mm
dia based on German Technology & design, which guarantees the specification of IS:1786/2008 & also the properties of various
international standards.
- Wire Rods : as per IS: 2062/2012, Sizes: 5.5mm to 12mm dia.
- MS Billets : as per IS 2830/2012
Ferro Alloys : Ferro Silicon, Ferro Manganese, Silico Manganese, Ferro Chrome & Sand
Castings.
IN HOUSE FACILITY
Manufacturing capacity 3.0 lakh MT of Steel per annum.
- 300 + 200 TPD Sponge Iron Plant.
- 6 nos. 12 pulse Steel Melting Induction Furnace.
Continous 3 strands Billet Casting Machine & Autometic Leveling Control System with
LRF(Ladle Refining Furnace)
Completely autometic & computerised Hot Charging arragement along with online Induction
heating system Rolling Mills with “Turbo Quench” of Herbert Rothe, Germany certified complete with most efficient quenching system
& “walk-in” type 80 mtrs. long cooling bed.
We have the complete in house facility for manufacturing of Billet in BIS 2830/2012 Grade.
We are the first party to receive BIS approval for manufacturing of IS:2830 Grade billets in Durgapur area.
Strength and Elongation:
Higher strength and better elongation is a unique feature of LOTUS TMT Bars. Designed to be much
stronger than conventional bars, LOTUS build;s a safer and stronger concrete structure with laser quality of steel with a great savings
over the market conventional requirement. LOTUS guarantees excellent Weldability, Ductility and Bendability. Tapered edge strength
connections with little overlap. Due to its low carbon content, these bars can withstand better bending and re-bending without reduction
in strength.Earthquake Resistance (EQR):
For earthquake resistance, TMT bars structures need to have balanced stiffness, strength and
ductility between its members, connections and supports. LOTUS TMT bars provide very high strengths with comparatively higher elongation
values and better ductility, making more earthquake resistance.Corrosion Resistance (CRS):
LOTUS TMT bars are more corrosion resistance than normal CTD bars. The fine layer of scale forms a
protective layer, thereby preventing further corrosion, where as in CTD bars, this initial layer of scale falls down during twisting.
Corrosion resistance can be further inproved as per customer needs, by altering material chemistry.HeatResistance:
The result of LOTUS TMT bars, have shown no loss of strength upto 500 degree C. At a temperature range of
550 degree C to 600 degree C, the yeild strength decreases by 20N/Sq mm only. That is why LOTUS TMT bars can be used easily in
constructions prone to fire hazards.
LOTUS TMT BAR WEIGHTMENT CHART SAVINGS ANALYSIS
|
|
BIS Standard |
Market Standard |
BDG6 TMT Bar |
| TMT Dia |
Specific Weight gm/m |
Tolerance gm/m |
% Variation |
Tolerance gm/m |
% Variation |
Tolerance gm/m |
% Variation |
Savings in terms of Weight |
| 8 mm |
395 |
367 to 423 |
± 7 |
387 to 410 |
+ 4 to -2 |
370 to 385 |
- 2.5 to - 6 |
5.50% |
| 10 mm |
617 |
574 to 660 |
± 7 |
605 to 642 |
+ 4 to -2 |
580 to 600 |
- 2.75 to - 6 |
5.40% |
| 12 mm |
888 |
844 to 932 |
± 5 |
870 to 924 |
+ 4 to -2 |
850 to 865 |
- 2.6 to - 4.3 |
4.40% |
| 16 mm |
1580 |
1501 to 1659 |
± 5 |
1548 to 1643 |
+ 4 to -2 |
1515 to 1535 |
- 2.85 to - 4 |
4.40% |
| 20 mm |
2470 |
2396 to 2544 |
± 3 |
2445 to 2519 |
+ 2 to -1 |
2400 to 2420 |
- 2 to - 2.8 |
2.95% |
| 25 mm |
3850 |
3735 to 3965 |
± 3 |
3812 to 3927 |
+ 2 to -1 |
3750 to 3780 |
- 1.8 to - 2.6 |
2.75% |
| 28 mm |
4830 |
4685 to 4875 |
± 3 |
4782 to 4927 |
+ 2 to -1 |
4700 to 4740 |
- 1.8 to - 2.7 |
2.75% |
| 32 mm |
6310 |
6121 to 6499 |
± 3 |
6300 to 6500 |
+ 3 to -3 |
6200 to 6400 |
- 1.7 to -1.4 |
1.60% |
LOTUS TMT BAR MECHANICAL PROPERTIES
|
Yield (min N/sq mn) |
UTS (min N/sq mn) |
Elongation (min %) |
| GRADE |
BIS |
BDG6 |
BIS |
BDG6 |
BIS |
BDG6 |
| Fe-415 |
415 |
450 |
485 |
550 |
14.5 |
18 |
| Fe-415D |
415 |
450 |
500 |
580 |
18 |
22 |
| Fe-500 |
500 |
530 |
545 |
600 |
12 |
16 |
| Fe-500D |
500 |
540 |
565 |
630 |
16 |
20 |
| Fe-550 |
550 |
580 |
585 |
650 |
10 |
14 |
| Fe-550D |
550 |
585 |
600 |
670 |
14.5 |
18 |
| Fe-600 |
600 |
620 |
660 |
700 |
10 |
14 |
IN-HOUSE FACILITIES
To have control on every step of manufacturing, the group have installed the following
modern facilities for producing To have control on every step of manufacturing, the group have installed the following modern
facilities for producing of more than 3.0 lakh MT per annum of steel:
- 300 TPD Sponge Iron Plant.
- Sinter Plant
6 nos. 12 pulse Steel Melting Induction Furnace.
LRF (Ladle Refining Furnace)
Continous 3 strands Billet Casting Machine with Autometic Leveling Control System.
Completely autometic & computerised Rolling Mills with “Turbo Quench” of Herbert Rothe,
Gwermany certified complete with most efficient quenching system & “walk-in” type 80 mtrs. long cooling bed.
Ultra Modern & Computerised Testing Laboratories with Spectrometers &
also latest testing machines for:
UWe have the complete in house facility for manufacturing of Billet in BIS 2830/2012 Grade.
We are the first party to receive BIS approval for manufacturing of ISL:2830 Grade billets in Durgapur area.
