TOPTECH TMT BAR
Which tmt bar to choose? Does the tmt bar have all the qualities to keep the house strong? Building a house means you are haunted by thousands of questions and persistent worries. What if all the doubts are cast aside by one tmt bar with all the salient features to keep your house strong and healthy for years? Yes, you heard it right! Only Toptech, with all its unique qualities, can easily meet all your tmt bar needs. So go ahead, choose Toptech, stay worry-free, and put all your heart into building your dream house. Design a garden on your terrace or place a jacuzzi on your balcony, just listen to your heart and let Toptech do the rest.
Toptech TMT has
impeccable bonding
with concrete
Product Benefits
Fire
Resistant
Good Impact
Toughness
Superior
Weldability
X-RIB SUPERIOR
BENDABILITY
High Strength
& Ductility
Superior
Bendability
Superior
tying
Value
for money
“Original” x-ribs
advantages
- Unique Rib Design
- 8 Point Contact with Concrete
- Much Superion Bonding wirh Concrete (AR
value – 1.26 against about 1 for Spiral Ribs) - Rib pattern Protected through patent
TMT Bar Features
Sturdy Build TopTech TMT Bars exhibit consistent superior strength and high ductility which ensures superior structures.Corrosion Resistant The controlled thermo mechanical treatment results in an uniform and thick tempered martensitic rim, completely free from internal stress.
Strength
e: 415/500/550/600 grade which are much stronger than conventional CTD Bars and give upto 20% stronger concrete structure with same quantity of steel.
Mechanical Properties
The advanced manufacturing process of TopTech TMT Bars makes it well surpass the minimum limit of strength and ductility specified in the standard IS: 1786.
Bend Properties
Many times better bend/re-bend properties which makes it not only easy to work but safe in hazardous situations.
Earthquake Resistance
Uniform energy dissipation for each cycle indicates high ductility and superior seismic resistance for Toptech TMT Bars. This is essential for minimising structural damage and casualties.
Corrosion Resistant
Negligible rusting in comparison to Cold Twisted Bars, even after a long period of time means longer life of concrete structure, i.e. buildings.
Chemical Composition
Toptech TMT Bars are manufactured after the incoming billets are analysed for chemical composition and are segregated for unwanted material like cast iron, non-metallic, non-ferrous etc.
Product Range
|
Section (mm) |
Normal Weight (kg/meter) |
Tolerance |
|---|---|---|
|
5.6 |
0.194 |
+/-7% |
|
8 |
0.395 |
+/-7% |
|
10 |
0.617 |
+/-7% |
|
12 |
0.888 |
+/-5% |
|
16 |
1.58 |
+/-5% |
|
20 |
2.47 |
+/-3% |
|
25 |
3.85 |
+/-3% |
|
25 |
3.85 |
+/-3% |
|
Chemical Properties (Maximum) |
Fe 500 | Fe 500-D |
Toptech 500 D (Typical Maximum Values) |
|---|---|---|---|
|
% Carbon |
0.300 |
0.250 |
0.250 |
|
% Carbon Equivalent (CE) |
0.420 |
0.420 |
0.400 |
|
% Sulphur (S) |
0.055 |
0.040 |
0.035 |
|
% Phosphorus (P) |
0.055 |
0.040 |
0.035 |
|
% Sulphur & Phosphorus (S&P) |
0.105 |
0.075 |
0.070 |
|
% Nitrogen |
120 |
120 |
120 |
- BIS Specification for Chemical Properties
|
Mechanical Properties (Minimum) |
Fe 500 | Fe 500-D |
Toptech 500 D (Typical Maximum Values) |
|---|---|---|---|
|
Yield Stress- YS (N/mm2 |
500 |
500 |
520 |
|
Ultimate Tensile Stress- UTS (N/mm2) |
545 |
565 |
620 |
|
UT S/YS Ratio |
1.08 |
1.10 |
1.15 |
- BIS Specification for Chemical Properties
Bending INSTRUCTIONS of TMT Bars
| SL No. | Nominal Size (mm) |
Suggested Mandrel Diameter for Different Grades | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Fe 415 | Fe 415D | Fe 415S | Fe 500 | Fe 500D | Fe 500S | Fe 550 | Fe 550D | Fe 550S | ||
| 1 | Upto and Including 20 |
30 | 50 | 20 | 40 | 30 | 30 | 50 | 40 | 50 |
| 2 | Over 20 | 40 | 30 | 30 | 50 | 40 | 40 | 60 | 50 | 60 |
- Note: 0 is the normal size of the TMT Bar in mm. An example of bar bending for 25mm 500D grade TMT Bar
