Precision rolled threaded steel bars can be roughly classified into the following three aspects: application field, geometric shape, material, and specifications.
According to the application field, it can be divided into five categories:
1. Precision rolled threaded steel bars for non-destructive testing of buildings: mainly used for durability testing and structural non-destructive testing of buildings.
2. Precision rolled threaded steel bars for geotechnical engineering monitoring: mainly used for on-site inspection of dams, tunnels, landslides, and geotechnical engineering tests.
3. Advanced precision rolled threaded steel bars: mainly used for evaluating the structural characteristics of materials such as coatings, pipelines, metals, and plates.
4. Precision rolled threaded steel bars for laboratory materials: mainly used for geotechnical, cement, concrete, asphalt, rock, and aggregate testing.
5. Precision rolled threaded steel bars for highway bridges: mainly used for on-site inspection of highways, docks, airports, railways, and bridges.
Classify according to geometric shape, that is, classify according to the cross-sectional shape of the ribs and the different spacing of the ribs.
Long term supply of PSB500 precision rolled threaded steel, PSB830 precision rolled threaded steel, PSB930 precision rolled threaded steel, PSB1080 precision rolled threaded steel, PSB1200 precision rolled threaded steel, precision rolled threaded nuts, precision rolled threaded pads, spiral bars, precision rolled threaded steel connectors, affordable prices, high-quality services, convenient transportation, dedicated to serving you.
**Typical Applications**
- Post-tensioning systems in PC bridges
- Anchorages for geotechnical engineering
- Connection elements in steel-concrete composite structures
- Reinforcement couplers for modular construction
**Certifications**
• ISO 15630-3:2018 Steel for prestressing
• CE Marking (CPR 305/2011)
• Third-party tested by SGS/BV/TÜV
**Packaging Options**
- Standard: 9m/12m fixed length with protective end caps
- Custom: Coiled supply available for diameters ≤20mm
- Palletized shipment with waterproof wrapping
**Technical Support**
Our metallurgical engineers provide:
• Stress-strain curve analysis
• Thread engagement calculations
- On-site torque tension guidance
Contact our global sales team for ASTM-certified mill test certificates and project-specific solutions.
| 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 |
