| Customization: | Available |
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| After-sales Service: | Pre-in-Post |
| Warranty: | Forever |
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Product Introduction
The 1x7 structure '12.7mm, 15.20mm, 15.70mm, 17.80mm' unbonded prestressed steel strand is a high-performance, specially engineered steel bar featuring anti-corrosion grease and a robust sheath. Ideal for extensive water conservancy and hydropower projects, it has recently seen increasing use in wind power projects, where the construction height of wind power towers now frequently reaches or exceeds 120m. This innovative product is becoming the top choice for concrete towers with external prestressing technology, thanks to its exceptional corrosion resistance and fatigue resistance. These features significantly enhance wind resistance and extend the service life of the structures in which it is used.
In adherence to the JG/T 161-2016 Unbonded Prestressed Steel Strand standard, our groundbreaking design simplifies the test method for sheath tensile properties, increases practicality, and facilitates the sheath performance. This innovative approach effectively standardizes sheath quality, thereby enhancing project safety and reliability.
Product Characteristics
For wind power concrete towers, our unbonded steel strand features an exceptionally dense and smooth sheath surface that allows the steel strand's outline to be visible. Customized to meet user-specific technical requirements, the sheath and grease thickness can be tailored accordingly. We ensure the highest standards of surface quality, free from air holes, mechanical damage, cracks, and visible wrinkles, meeting all rigorous industrial requirements.
Product Application
Wind Power, Water Conservancy
Hydropower Stations
South-North Water Transfer Project
River Channels and other National Key Water Conservancy and Hydropower Projects
| UNBONDED PC STRAND | ||||||
| Size(mm) | Tensile Strength(MPa) | Section Area(mm2) | Gresase mass per meter(g/m) | Minimum thickness of coat(mm) | Friction factor(μ) | Effect modulus(K) |
| 12.7 | 1720,1860,1960 | 98.7 | 43 | ≥1.0 | 0.04~0.1 | 0.003~0.004 |
| 15.2 | 1570,1670,1770,1860,1960 | 140.0 | 50 | |||
| 15.24 | 1860 | 140.0 | 50 | |||
| 15.7 | 1860 | 150.0 | 53 | |||
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