TMT Bars

Deformed Bar Round Bar / Deformed Steel Rebar
TMT Bars
TMT means Thermo Mechanical Treatment, which is a thermomechanical process; These TMT steel bars are generally used material in construction for enhanced protection against earthquake and another type of natural disasters. To ensure safety for your structure, TMT steel bars should be resistant to corrosion which helps to obtain a longer life to your structure.

Product Parameter
Product Specifications
| Product Name | TMT Bars |
| Material | Q195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc.or customer required8 28 |
| Size | 6mm,8mm,10mm,12mm, 12mm, 14mm, 16mm, 18mm, 22mm,25mm,28mm, 32mm, 40mm,50mm,or customer required |
| Length | 5.8m,6m,10m-12m,12m or as customer's actual reques |
| Standard&Grade | BS4449-2005,GB1449.2-2007,JIS G3112-2004, ASTM A615-A615M-04aGrade A, Grade B, Grade CBS4449 460B 500B 500CAS/NZS 4671 500N |
| Section Shape | Spiral Shap,Herringbone Shap,Crescent Shap |
| Technique | Hot rolling and cold rolling |
| Surface Treatment | 1. Galvanized2.PVC,Black and color painting3. Transparent oil,anti-rust oil4. According to clients requirement |
| Ends | Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc. |
| Certification | CE,ISO,SGS,ETC |
| MOQ | 25 -28 TONS |
| Payment | TT,LC,ETC |
| delivery time | Usually 7 days, depending on the quantity |
| Package | Bundle, or with all kinds of colors PVC or as your requirements |
| Application | tunnel, flood control, dam and other public facilities, to the building foundation, beams, columns, walls, plates, screw steel areindispensable structural materials. |
| Port | Qingdao ,Tianjin ,Shanghai |
| Size(mm) | BaseDiameter(mm) | TransverseRibHeight(mm) | LongitudinaI RibHeight(mm) | TransverseRibSpacing(mm) | UnitWeight(kg/m) |
|---|---|---|---|---|---|
| 6 | 5.8±0.3 | 0.6±0.3 | ≤0.8 | 4±0.5 | 0.222 |
| 8 | 7.7±0.4 | 0.8±0.3 | ≤1.1 | 5.5±0.5 | 0.395 |
| 10 | 9.6±0.4 | 1±0.4 | ≤1.3 | 7±0.5 | 0.617 |
| 12 | 11.5±0.4 | 1.2±0.4 | ≤1.6 | 8±0.5 | 0.888 |
| 14 | 13.4±0.4 | 1.4±0.4 | ≤1.8 | 9±0.5 | 1.21 |
| 16 | 15.4±0.4 | 1.5±0.5 | ≤1.9 | 10±0.5 | 1.58 |
| 18 | 17.3±0.4 | 1.6±0.5 | ≤2 | 10±0.5 | 2.00 |
| 20 | 19.3±0.5 | 1.7±0.5 | ≤2.1 | 10±0.8 | 2.47 |
| 22 | 21.3±0.5 | 1.9±0.6 | ≤2.4 | 10.5±0.8 | 2.98 |
| 25 | 24.2±0.5 | 2.1±0.6 | ≤2.6 | 12.5±0.8 | 3.85 |
| 28 | 27.2±0.6 | 2.2±0.6 | ≤2.7 | 12.5±1.0 | 4.83 |
| 32 | 31±0.6 | 2.4±0.7 | ≤3 | 14±1.0 | 6.31 |
| 36 | 35±0.6 | 2.6±0.8 | ≤3.2 | 15±1.0 | 7.99 |
Chemical Composition (%)≤
| C | Si | Mn | P | S | Ceq | |
|---|---|---|---|---|---|---|
| HRB 335 | 0.25 | 0.8 | 1.6 | 0.045 | 0.52 | — |
| HRB 400 | 0.25 | 0.8 | 1.6 | 0.045 | 0.54 | — |
| HRB 500 | 0.25 | 0.8 | 1.6 | 0.045 | 0.55 | — |
Mechanical Property
| Diameter | Yield strength/MPa | Tensile strength/MPa | Elongation(%) | |
|---|---|---|---|---|
| — | /mm | ≥ | — | — |
| HRB 335 | 6~25 | 335 | 490 | 16 |
| HRB 335 | 28~50 | 335 | 490 | 16 |
| HRB400 | 6~25 | 400 | 570 | 14 |
| HRB400 | 28~50 | 400 | 570 | 14 |
| HRB 500 | 6~25 | 500 | 630 | 12 |
| HRB 500 | 28~50 | 500 | 630 | 12 |
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