Fully Thread Screw Steel Bar PSB930-50 Or bent anchor bolts for concrete
**Precision Hot-Rolled Threaded Steel Bars (PSB Series)**
*Engineered for Structural Excellence*
**Product Overview**
Our precision hot-rolled threaded steel bars are cold-formed through advanced thermo-mechanical processing, achieving superior dimensional accuracy with continuous thread profiles. Compliant with ASTM A615/A615M, BS 4449, and GB/T 20065 standards.
**Key Specifications**
- Diameter Range: Φ20mm – Φ75mm
- Strength Grades: PSB830 / PSB930 / PSB1080
- Tolerance Control: ±0.5mm diameter, ±1° thread angle
- Surface Treatment: Natural mill finish or anti-corrosion coating
**Performance Advantages**
1. **High Tensile Strength**
Yield strength up to 1080MPa, elongation ≥6% (per EN 10002-1)
2. **Precision Thread Geometry**
CNC-machined thread patterns with 1.5-3.0mm pitch depth for optimal bond performance
3. **Weldability & Machinability**
Controlled carbon equivalent (Ceq ≤0.55) enables arc welding without pre-heating
4. **Fatigue Resistance**
Passed 2 million cycle fatigue test at 60% of ultimate tensile stress
**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 |
