Prestressed concrete components rely on reinforcement materials that can maintain stable force over years of service. Initial strength alone is not enough; the wire must also provide consistent stress retention, fatigue resistance, and reliable interaction with concrete.
Luguan 82MnA ribbed prestressed concrete wire is designed to meet these requirements through controlled material selection, precision processing, and performance-focused manufacturing. The product provides stable reinforcement support for concrete structures exposed to continuous loads, vibration, and demanding operating conditions.
For precast concrete manufacturers and infrastructure contractors, choosing suitable prestressed wire helps improve production consistency, reduce structural risks, and extend the service life of finished components.
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Item |
Specification |
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Product Name |
82MnA Ribbed Prestressed Concrete Wire |
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Brand |
Luguan |
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Material |
82MnA High Carbon Steel |
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Surface Type |
Ribbed Surface |
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Diameter |
Φ4.0mm, Φ4.8mm, Φ5.0mm, Φ6.0mm, Φ7.0mm, Φ8.0mm |
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Tensile Strength |
1570MPa - 1860MPa |
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Relaxation Performance |
≤2.5% (1000h) |
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Elongation After Fracture |
≥3.5% |
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Standard |
GB/T 5223 Steel Wires for Prestressed Concrete |
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Supply Form |
Coil |
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Surface Treatment |
Plain / Epoxy Coated / Hot-Dip Galvanized |
The raw material plays an important role in determining the final performance of prestressed concrete wire. Luguan uses 82MnA high-carbon steel wire rod as the production material, providing a reliable foundation for high-strength reinforcement applications.
Compared with ordinary steel wire, 82MnA steel offers a balanced combination of strength, toughness, and processing performance after cold drawing and stress-relieving treatment.
Key material advantages include:
● High tensile strength for prestressed concrete structures
● Stable elastic properties during tensioning
● Good ductility for processing and installation
● Reliable fatigue resistance under repeated loading conditions
Through strict control of raw material quality, Luguan helps ensure consistent mechanical properties between different production batches.
In long-term prestressed concrete applications, maintaining the initial prestressing force is essential for structural reliability.
During service, prestressed steel wire naturally experiences stress loss. Excessive relaxation may affect the performance and durability of concrete components.
Luguan 82MnA ribbed prestressed concrete wire adopts stress-relieving tempering technology to reduce internal stress generated during cold working. With stable relaxation performance, the product helps maintain effective prestressing force throughout the service period.
Main benefits include:
● Reduced prestress loss over time
● Improved structural stability
● Better durability for long-term projects
● More reliable performance in critical infrastructure applications
The 1000-hour relaxation performance can reach ≤2.5%, meeting the requirements of high-standard prestressed concrete applications.
The ribbed surface structure improves the connection between steel wire and concrete.
During concrete loading, the ribs create mechanical interlocking with the surrounding concrete, allowing stress to transfer more effectively from the reinforcement to the concrete structure.
Compared with smooth prestressed steel wire, ribbed wire provides:
The ribbed profile enhances anchorage efficiency, allowing prestressing force to be transferred within a shorter distance.
The mechanical interaction between ribs and concrete improves resistance against displacement during service.
Better stress transfer helps concrete components maintain structural integrity under working loads.
This makes ribbed prestressed concrete wire suitable for applications where stable reinforcement performance is required.
Luguan focuses on maintaining stable production performance throughout the manufacturing process.
82MnA high-carbon steel wire rod is inspected before production to ensure suitable chemical composition and surface quality.
Controlled cold drawing improves tensile strength and ensures accurate wire dimensions for consistent prestressing operations.
Professional heat treatment reduces residual stress and improves long-term stability during service.
Finished products are tested for mechanical properties, dimensional accuracy, and surface condition before shipment.
Through continuous production control, Luguan provides reliable prestressed wire solutions for large-volume engineering projects.
With tensile strength ranging from 1570MPa to 1860MPa, 82MnA ribbed prestressed concrete wire provides strong reinforcement capability for precast concrete elements.
The high-strength performance allows manufacturers to produce concrete components with improved load-bearing capacity while maintaining structural efficiency.
Infrastructure components such as railway sleepers and bridge elements are often exposed to continuous vibration and repeated loading.
The combination of high-carbon steel composition and controlled processing provides reliable fatigue resistance, supporting long-term operation in demanding environments.
For industrial precast concrete production, consistency is critical.
Luguan controls:
● Steel grade stability
● Wire diameter accuracy
● Mechanical performance
● Coil quality
Stable product performance helps customers maintain efficient production processes and reduce quality fluctuations.
According to project requirements, Luguan provides different surface treatment options:
Plain Surface
Suitable for standard prestressed concrete applications.
Epoxy Coated Surface
Provides additional corrosion protection for environments requiring improved durability.
Hot-Dip Galvanized Surface
Suitable for applications exposed to moisture or corrosive conditions.
PHC pipe piles require reinforcement materials with high strength and stable prestress retention. Luguan 82MnA wire supports reliable performance in foundation structures where load capacity and durability are important.
Prestressed concrete cylinder pipes operate under continuous pressure conditions. High-strength ribbed wire helps improve structural reinforcement and supports long-term service reliability.
Railway applications require materials that can withstand repeated loading and vibration. The fatigue resistance and stable mechanical properties of 82MnA wire make it suitable for transportation infrastructure.
Large-span precast components depend on consistent reinforcement performance. Luguan wire provides stable prestressing support for bridge elements and industrialized construction systems.
For modern prefabricated buildings, reinforcement materials need to support efficient production and consistent structural performance.
Luguan applies inspection procedures from raw material preparation to finished coil delivery.
Quality control includes:
Inspection of steel grade, chemical composition, and wire rod condition.
Checking wire diameter accuracy and product consistency.
Testing tensile strength, elongation, and related performance indicators.
Evaluating long-term stress stability according to technical requirements.
Checking coil appearance, packaging condition, and product identification before shipment.
It is commonly used in PHC pipe piles, PCCP pipes, railway sleepers, bridge components, precast slabs, and other prestressed concrete structures requiring high-strength reinforcement.
82MnA high-carbon steel provides high tensile strength, stable mechanical properties, and good fatigue resistance after professional processing.
Ribbed wire improves steel-concrete interaction through surface ribs, creating stronger mechanical anchorage compared with smooth wire.
Low relaxation characteristics help reduce prestress loss over time, allowing concrete components to maintain more stable structural performance.
Yes. Luguan can provide customized diameters, surface treatments, packaging methods, and technical documents according to customer requirements.
The product is manufactured according to GB/T 5223 Steel Wires for Prestressed Concrete and can be supplied according to specific project requirements.
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Hongyun Economic & Technological Development Zone, Qingyun Hongyun Economic Development Zone, Qingyun County, Dezhou City, Shandong Province, China
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