Lotus TMT steels bars are based on latest technology & design which guarantees the properties to produce as per international standards. German BST 420S / 500S 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 SD30, 35, 40, 45 & 50 Swiss to par 550S 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 achive their properties by online computerised controlled thermo processing.
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 | ||||||||
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TMT Dia | Specific Weight gm/m | BIS Standard | Market Standard | BDG6 TMT Bar | ||||
Tolerance gm/m | % Variation | Tolerance gm/m | % Variation | Tolerance gm/m | % Variation | Savings in terms of Weight |
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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 | ||||||
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GRADE | Yield (min N/sq mn) | UTS (min N/sq mn | Elongation (min %) | |||
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 |
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