The 1x19 21.8mm 2230 MPa PC Strand is a premium-grade, ultra-high-strength Prestressed Steel strand engineered for advanced structural engineering applications where performance, longevity, and efficiency are critical. Designed to exceed the capabilities of conventional 1860 MPa strands, this product delivers exceptional tensile strength while optimizing material usage across large-scale infrastructure projects worldwide.
Manufactured by Chunpeng Group—a trusted global leader in prestressed concrete materials with over three decades of expertise—the 21.8mm diameter 1x19 configuration ensures superior load distribution, enhanced fatigue resistance, and reduced risk of premature failure under dynamic conditions. This strand is ideal for high-performance civil engineering solutions that demand reliability, minimal maintenance, and long-term durability.
Key Features:
- Ultra-High Tensile Strength (2230 MPa): Offers significantly greater load-bearing capacity than standard options, enabling fewer strands per tendon system—reducing installation complexity and improving structural efficiency.
- Large Diameter (21.8mm): Facilitates higher prestressing forces within fewer tendons, minimizing congestion in ducts and anchor zones while enhancing constructability in complex designs.
- 19-Wire Configuration: Provides better stress uniformity and improved cyclic fatigue resistance compared to traditional 1x7 configurations, making it especially suitable for vibrating or repetitive-load environments like wind turbines and bridges.
- Material Efficiency & Cost Optimization: Higher strength reduces total steel quantity needed per project, lowering both material costs and labor requirements during installation—ideal for budget-conscious yet technically demanding builds.
This advanced prestressing solution combines cutting-edge metallurgy with proven design principles to meet the evolving needs of modern construction. Its robust composition supports heavy-duty applications such as cable-stayed bridge systems, nuclear containment structures, offshore wind turbine foundations, and mega-scale urban developments. The 1x19 layout also improves corrosion resistance when paired with galvanized or weather-resistant coatings—an added benefit for coastal or harsh climate regions.
Engineers and project managers around the globe rely on this strand for its predictable behavior under extreme loads, consistent quality control, and compatibility with industry-standard anchorage systems. Whether used in post-tensioned concrete beams, stay cables, or precast elements, it consistently outperforms lower-grade alternatives in terms of safety margin, service life, and lifecycle cost-effectiveness.
Customers have reported significant reductions in overall project timelines due to fewer strands required per unit area, along with improved handling characteristics thanks to its balanced weight-to-strength ratio. Many international clients cite the strand’s ability to simplify reinforcement detailing without compromising structural integrity—a key advantage in fast-paced, high-precision construction scenarios.
Frequently Asked Questions:
What makes 2230 MPa PC strand different from standard 1860 MPa strands? The higher yield strength allows engineers to reduce the number of individual strands needed for equivalent load transfer, resulting in more efficient use of space, materials, and labor.
Is this strand suitable for marine environments? Yes, when combined with anti-corrosion treatments such as galvanization or epoxy coating, it performs reliably even in aggressive atmospheric or saltwater exposure conditions.
Can it be used in seismic zones? Absolutely—it offers excellent ductility and energy dissipation properties, making it well-suited for earthquake-prone areas where structural resilience is paramount.
How does the 1x19 wire count improve performance over 1x7 strands? The additional wires provide more uniform stress distribution, reduce localized wear, and enhance fatigue life—especially beneficial for structures subjected to frequent loading cycles like bridges or industrial facilities.
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