7 Wire Prestressing Strand 1860Mpa Low Relaxation PC Steel Strand Wire Rope Sling
As the core consumable of high-strength prestressed concrete structures, our prestressed steel strands are manufactured from high-quality high carbon steel raw materials. The products are twisted and stabilized by multiple wires, covering multiple series including 1×7 standard type, galvanized, and epoxy coating variants.
With a strength grade of 1860MPa, these strands far exceed ordinary steel by 3-4 times, providing exceptional performance for demanding applications.
| Grade | Nominal Diameter (mm) | Tolerance (mm) | Area of Section (mm²) | Weight of strand (kg/1000m) | Minimum Breaking Load (KN) | Minimum Load at 1% extension (KN) | Elongation (%) |
|---|---|---|---|---|---|---|---|
| 250 | 9.53 | ±0.41 | 51.61 | 405 | 89.0 | 80.1 | 3.5 |
| 11.11 | ±0.41 | 69.68 | 548 | 120.1 | 108.1 | ||
| 12.70 | ±0.41 | 92.90 | 730 | 160.1 | 144.1 | ||
| 15.24 | ±0.41 | 139.35 | 1094 | 240.2 | 216.2 | ||
| 270 | 9.53 | +0.65/-0.15 | 54.84 | 432 | 102.3 | 92.1 | 3.5 |
| 11.11 | +0.65/-0.15 | 74.19 | 582 | 137.9 | 124.1 | ||
| 12.70 | +0.65/-0.15 | 98.71 | 775 | 183.7 | 165.3 | ||
| 15.24 | +0.65/-0.15 | 140.00 | 1102 | 260.7 | 234.6 |
| Steel Strand Structure | Nominal Diameter (mm) | Diameter Tolerance (mm) | Nominal Cross-Sectional Area (mm²) | Approx. Weight per meter (g/m) |
|---|---|---|---|---|
| 1x7 | 9.50 (9.53) | +0.30/-0.15 | 54.8 | 430 |
| 11.10 (11.11) | +0.30/-0.15 | 74.2 | 582 | |
| 12.70 | +0.30/-0.15 | 98.7 | 775 | |
| 15.20 (15.24) | +0.30/-0.15 | 140 | 1101 | |
| 15.70 | +0.40/-0.15 | 150 | 1178 | |
| 17.80 (17.78) | +0.40/-0.15 | 191 (189.7) | 1500 | |
| 18.90 | +0.40/-0.15 | 220 | 1727 | |
| 21.60 | +0.40/-0.15 | 285 | 2237 |
- High Tensile Strength and Toughness: Significantly reduces structural self-weight while enhancing building load-bearing capacity
- Excellent Corrosion Resistance: Galvanized and epoxy coatings adapt to harsh working conditions including bridges and marine environments
- Construction Efficiency: Twisted structure facilitates easy transport, tensioning, and anchoring, effectively shortening construction timelines
Currently widely used in major projects including bridge box girders, high-rise buildings, water conservancy dams, and subway shield tunnel segments. With stable quality, it has become the preferred material in the infrastructure field, helping customers create safe, durable, and efficient boutique projects.
Our steel wire rope meets international production standards and has obtained multiple certifications including:
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.