| Customization: | Available |
|---|---|
| After-sales Service: | Pre-in-Post |
| Warranty: | Forever |
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Product Introduction
Introducing the marvel of engineering, the 1x7 structure unbonded prestressed steel strand with dimensions "12.7mm, 15.20mm, 15.70mm, 17.80mm" is an exceptional steel bar infused with anti-corrosion grease and a protective sheath. These strands are pivotal in the sphere of water conservancy and hydro-power projects. As wind power projects burgeon, with tower heights reaching or exceeding a striking 120m, they are increasingly utilizing concrete towers with external prestressing technology that rely on our unbonded prestressed steel strand. Renowned for their robust corrosion and fatigue resistance, these strands not only bolster wind resistance but also significantly extend the structure's service life.
Upholding the esteemed JG/T 161-2016 standard for Unbonded Prestressed Steel Strand, we have ingeniously reimagined the design to streamline the testing protocol of sheath tensile properties, thereby enhancing its practicality. This innovation facilitates the performance of the sheath, effectively elevating the standardized quality and ensuring the utmost safety and reliability of your projects.
Product Characteristics
Designed for the outer cables of wind power concrete towers, our unbonded steel strand offers customizable sheath thickness and grease content to adhere to specific technical standards set by users. The sheath's surface is impeccably dense and smooth, clearly outlining the steel strand within. It guarantees top-notch surface quality, free from air holes, mechanical damage, cracks, or pronounced wrinkles, meeting and exceeding industry standards.
Product Application
Ideal for Wind Power and Water Conservancy
Perfect Fit for Hydro-power Stations
Key Player in the South-North Water Transfer Project
Integral to 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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