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12.7mm Hot-Dipped Galvanized PC Strand
The 12.7mm Hot-Dipped Galvanized PC Strand is a high-performance prestressed steel strand designed for applications requiring high tensile strength, low relaxation, and superior corrosion resistance. It is manufactured from high-carbon steel wires and protected with a hot-dip galvanized zinc coating, ensuring long service life in aggressive environments.
This galvanized PC strand is available in 3-wire, 7-wire (most common), and 19-wire configurations, making it suitable for a wide range of prestressed concrete, bridge cable, marine, and structural applications.
Common diameter options include 9.53mm, 12.7mm, and 15.2mm, with custom sizes available upon request. The strand typically meets 1860 MPa or higher strength grades, depending on project specifications.
Manufacturing and performance comply with major international standards, including ASTM A416, ASTM A475, EN 10138, BS 5896, and related specifications.Key Advantages of 12.7mm Hot-Dipped Galvanized PC Strand
The Hot-Dipped Galvanized PC Strand is engineered for long-term durability, structural reliability, and corrosion protection, making it an essential material for modern infrastructure projects.
Primary Advantages
Superior Corrosion Protection
Each steel wire is coated through a hot-dip galvanizing process, where the wire passes through a molten zinc bath. This creates a continuous zinc layer that protects against corrosion, oxidation, moisture, and chemical exposure.
High Tensile Strength
Made from multiple high-carbon steel wires twisted together, the galvanized PC strand provides excellent load-bearing capacity, ideal for prestressed concrete and tension-based structures.
Low Relaxation Performance
The low relaxation property ensures the strand maintains its prestressing force over long periods, reducing maintenance requirements and ensuring long-term structural stability.
Excellent Fatigue Resistance
The galvanized coating enhances fatigue performance. Coating adhesion is verified through a wrapping test, where the zinc layer remains intact after six turns without peeling or detachment.
Long Service Life
The hot-dip galvanized coating significantly extends the strand’s lifespan, making it suitable for marine, offshore, coastal, and industrial environments.
Flexible Configurations
Available in multiple wire constructions and diameters, galvanized PC strands can be customized to meet various engineering and construction requirements.
Where Can Hot-Dipped Galvanized PC Strand Be Used?
The 12.7mm Hot-Dipped Galvanized PC Strand is widely used in applications where corrosion resistance and long-term performance are critical.
Typical Applications Include:
Arch bridge cable systems
Cable-stayed bridge systems
Suspension bridge cable systems
Prestressed structures (not in direct contact with concrete mortar)
Agricultural greenhouse construction
Photovoltaic mounting and suspension systems
Bridges and prestressed concrete structures
Offshore and marine projects
Tunnels, dams, and retaining walls
Industrial buildings and wind turbine foundations
Ground anchors and precast concrete elements
Important Usage Notes
Deflective tensile coefficient for non-bridge applications should not exceed 28%
For bridge cable systems, the deflective tensile coefficient should be ≤20%
During fatigue testing, the strand must withstand 2 million load cycles without failure
The zinc coating must be continuous, free from iron exposure, dezincification, or surface defects
The specifications is conforming with standard YB/T 152-1999
Specification:12.7mm, 12.9mm, 15.2mm, 15.7mm as per GB/T5224
Tensile Strength: 1860Mpa
Galvanized coating thickness: 190- 400 g/m2
| HOT DIPPED GALVANIZING. PC STRAND | ||||||
Size(mm) | Tensile Strength (Rm/Mpa) | Specifications | Minimum difference between center wire and outer wires (mm) | |||
Elongation under Max. Force % | 1000h Relaxation(Initial Load 0.7) r / % | Deflective Tensile Coefficient % | ||||
Inhaul Cable | Non Inhaul Cable | |||||
9.53, 12.7，15.2，15.7，17.8 | 1770、1860、1960 | ≥ 3.5 | ≤ 2.5 | ≤ 20 | ≤ 28 | 0.08 |
Other Specifications:
PC Strand is conforming with ASTM A 416 - Grade 270K - Low Relaxation.
Galvanization Complying with ASTM A 475, Class A.
Packaging & Delivery
We support customized packaging for Hot-Dipped Galvanized PC Strand, ensuring safe transportation, corrosion protection, and easy handling at the construction site.
Global Supply & Export Markets
Tianjin WASUNGEN Metal Products Co., Ltd. supplies Hot-Dipped Galvanized PC Strand, including 12.7mm Galvanized PC Strand, to global markets for prestressed concrete, bridge construction, marine engineering, and infrastructure projects.
South America – Galvanized PC Strand Supply
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela.
Central Asia – Galvanized PC Strand Supply
Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan.
With extensive experience in international logistics, export packaging, and overseas project supply, we ensure safe delivery, coating integrity, and consistent technical performance under different environmental and climatic conditions.
Frequently Asked Questions – Hot-Dipped Galvanized PC Strand
What is a Hot-Dipped Galvanized PC Strand?
It is a prestressed steel strand made from multiple steel wires coated with a hot-dip galvanized zinc layer to provide excellent corrosion resistance and long service life.
What are the benefits of hot-dip galvanizing?
Hot-dip galvanizing protects the steel from rust, chemicals, and moisture, making it ideal for marine, bridge, and outdoor applications.
How many wires are used in a galvanized PC strand?
Common configurations include 3-wire, 7-wire, and 19-wire strands, with 7-wire being the most widely used.
Where is galvanized PC strand commonly used?
It is widely used in bridges, prestressed concrete structures, offshore platforms, tunnels, retaining walls, and industrial projects.
How does galvanizing improve durability?
The zinc coating acts as a protective barrier, preventing corrosion and reducing metal fatigue, significantly extending the strand’s service life.
