Post Tensioned Steel Bar For Construction
| Grade | Yield Strength | Tensile Strength |
| 500 | 500MPa | 630MPa |
| 830 | 830MPa | 1030MPa |
| 930 | 930MPa | 1080MPa |
| 1080 | 1080MPa | 1230MPa |
Prestressed steel reinforcement involves the application of compressive stress to concrete before it is subjected to its intended load. This process is achieved by embedding high-tensile steel tendons within the concrete, which are then tensioned and anchored. Once the concrete hardens, the tendons are released, transferring the stress to the concrete and significantly improving its load-bearing capacity.
Our Prestressing thread bar system Grade 930/1080 had been used on several bridges in India,Thailand and Colombia
Tianjin Guotai Gancheng Steel Co., LTD. Main business: fine rolled rebar and supporting anchor (fine rolled nut, fine rolled gasket, fine rolled connector, screw bar), 15.2 steel strand and other steel.
Introduce: Long term supply of Φ15, Φ20, Φ25, Φ28, Φ32, Φ36, Φ40, Φ42, Φ50, Φ63.5, Φ75 (mm) fine rolled screw steel.
The threaded bar for prestressed concrete (also called fine rolled threaded bar) is a straight bar with large diameter, high strength and high dimensional precision rolled on the whole bar with discontinuous external thread. The steel bar at any section can be screwed on a connector with internal thread for connection or screwed on threaded nuts for anchorage.
| Nominal Diameter | Diameter | H | B | L | Nominal Section | Nominal Weight | |
| Dv | Dh | ||||||
| mm | mm | mm | mm | mm | mm | mm2 | kg/m |
| 15 | 15 | 15 | 1.0 | 4.5 | 10 | 176 | 1.47 |
| 18 | 18 | 18 | 1.0 | 4.0 | 10 | 254.5 | 2.11 |
| 20 | 20 | 20 | 1.3 | 4.8 | 10 | 314 | 2.47 |
| 25 | 25 | 25 | 1.6 | 6.0 | 12 | 490.9 | 4.10 |
| 32 | 32 | 32 | 2.0 | 7.0 | 16 | 804.2 | 6.65 |
| 36 | 36 | 36 | 2.5 | 8.0 | 18 | 1018 | 8.41 |
| 40 | 40 | 40 | 3.0 | 8.0 | 20 | 1256.6 | 10.34 |
| 50 | 50 | 50 | 3.0 | 9.0 | 24 | 1963.5 | 16.28 |
| 60 | 60 | 60 | 3.0 | 10.0 | 22 | 2827 | 23.26 |
| 63.5 | 63 | 63.5 | 3.0 | 12.0 | 22 | 3167 | 26.20 |
| 65 | 65 | 65 | 3.0 | 12.0 | 22 | 3318 | 27.470 |
| 70 | 70 | 70 | 3.0 | 12.0 | 22 | 3848 | 31.8 |
| 75 | 75 | 75 | 3.0 | 12.0 | 22 | 4418 | 36.9 |
| Grade500/630 | NominalDia. | CrossSection | YieldStrength | TensileStrength | YieldLoad | UltimateLoad | Elongation | NominalWeight |
| mm | mm2 | >=Mpa | >=Mpa | KN | KN | A/% | KG/m | |
| 20 | 314 | 500 | 630 | 157 | 198 | 10 | 2.47 | |
| 25 | 491 | 500 | 630 | 246 | 309 | 10 | 4.1 | |
| 28 | 615 | 500 | 630 | 308 | 387 | 10 | 4.83 |
