Plain PC strand is a seven-wire, uncoated prestressing steel strand used in prestressed concrete applications where direct bonding between the steel and concrete is required. Tianjin Wasungen Metal Products Co., Ltd. supplies plain PC strand from China for precast concrete, bridges, piles, railway sleepers, beams, and other construction projects.
Our plain prestressing strand is available in common diameters such as 12.7mm and 15.2mm, with production options based on applicable ASTM, EN, and GB standards. Buyers can request product specifications, mill test reports, packing details, and export quotations according to project requirements.
As a plain PC strand manufacturer and supplier, we focus on consistent wire quality, strand geometry, tensile performance, and reliable production control.
Plain PC strand is a prestressing steel strand with an uncoated surface. It is normally made from seven high-carbon steel wires twisted together to form one strand.
Unlike epoxy-coated, galvanized, or unbonded PC strand, plain strand does not have an additional protective coating or sheath. This allows it to bond directly with surrounding concrete in suitable bonded prestressing systems.
Plain PC strand is commonly selected when the project does not require additional corrosion protection or an unbonded tendon system.
We supply plain PC strand in different specifications according to project and standard requirements.
| Specification | Plain PC Strand |
| Product | Plain PC Strand |
| Structure | 7-wire strand |
| Surface | Plain / Uncoated |
| Common Diameters | 12.7mm, 15.2mm |
| Tensile Grade | According to applicable standard |
| Relaxation | Standard or low relaxation |
| Application | Prestressed concrete |
| Standards | ASTM A416, EN 10138, GB/T 5224 |
| Packing | Coil / Export Packing |
| Documentation | Mill Test Report available |
The required diameter, grade, relaxation class, and other specifications should be selected according to the structural design and applicable project standard.
Plain PC strand provides a simple and reliable solution for many prestressed concrete applications.
The strand has no epoxy, zinc coating, or protective sheath. This provides a direct steel surface for suitable bonded prestressing applications.
Seven high-strength wires are twisted together to create a stable strand structure designed for prestressing applications.
Consistent strand geometry and mechanical properties help provide predictable performance during stressing and load transfer.
Because there is no additional coating or sheath, the steel surface can be inspected before installation and handled using standard prestressing procedures.
Plain strand does not require an additional coating or sheathing process, which can make it a practical choice when the project does not require additional corrosion protection.
Plain prestressing strand is widely used in precast and prestressed concrete construction.
Plain PC strand can be used in prestressed beams where the strand is tensioned and concrete is cast around it. After the concrete reaches the required strength, prestressing force is transferred to the concrete.
Prestressing strand is commonly incorporated into concrete piles to provide the required tensile and structural performance.
Plain PC strand can be used in the production of prestressed concrete railway sleepers where controlled prestressing is required.
Precast bridge girders and other structural concrete components may use prestressing strand to achieve the required structural performance.
Plain strand can also be used in suitable prestressed concrete slab systems where bonded prestressing is specified.
Depending on the structural design, plain PC strand can be used in concrete poles, precast structural elements, and other prestressed concrete products.
The basic installation process depends on the prestressing system and project design, but a typical bonded prestressing process involves several stages:
Strand placement: The PC strand is positioned in the mold or designated prestressing system.
Tensioning: Hydraulic or mechanical stressing equipment applies the specified tension.
Concrete placement: Concrete is poured around the strand or the strand is incorporated into the precast element.
Concrete curing: The concrete is cured until it reaches the required strength.
Prestress transfer: The prestressing force is transferred to the concrete according to the selected system.
Final inspection: The finished component is checked against project specifications.
Actual stressing procedures, force levels, anchorage requirements, and transfer methods should follow the structural design and applicable standards.
Plain and indented PC strands are both used for prestressing applications, but their surface profiles are different.
| Feature | Plain PC Strand | Indented PC Strand |
| Surface | Smooth | Indented profile |
| Coating | None | None |
| Surface profile | Plain | Modified surface |
| Bond characteristics | Based on the specified strand and concrete system | Surface profile can improve mechanical interaction |
| Typical selection | Standard bonded applications | Applications requiring modified bond characteristics |
The appropriate strand should be selected according to the structural design, required bond characteristics, and applicable specification.
Learn more about Indented PC Strand.
Plain and unbonded PC strands serve different prestressing requirements.
Plain PC strand is an uncoated steel strand that can bond with concrete in suitable bonded prestressing systems.
Unbonded PC strand is normally supplied with protective grease or another corrosion-resistant coating and a plastic sheath. The protective system separates the strand from direct bonding with the surrounding concrete.
| Feature | Plain PC Strand | Unbonded PC Strand |
| Surface | Uncoated steel | Coated and sheathed |
| Concrete bonding | Bonded system | Unbonded system |
| Protection | Depends on project environment | Protective coating and sheath |
| Typical application | Precast and bonded prestressing | Unbonded post-tensioning systems |
Learn more about Unbonded PC Strand.
12.7mm and 15.2mm are common PC strand diameters. The correct option depends on the required prestressing force, structural design, anchorage system, and applicable standard.
| Feature | 12.7mm PC Strand | 15.2mm PC Strand |
| Nominal diameter | 12.7mm | 15.2mm |
| Strand size | Smaller | Larger |
| Typical force capacity | Depends on grade and standard | Depends on grade and standard |
| Material quantity | Generally lower per strand | Generally higher per strand |
| Selection | Project-specific | Project-specific |
A larger diameter should not automatically be considered better. Engineers should select the strand size based on the required design force and the complete prestressing system.
Our manufacturing process is designed to maintain consistent strand quality from steel wire production through final packing.
The general production process includes:
High-carbon steel wire preparation and drawing
Wire cleaning and dimensional control
Seven-wire strand forming
Stabilization and heat treatment
Diameter and strand geometry inspection
Tensile and mechanical testing
Relaxation testing where specified
Coil identification and traceability
Final inspection and export packing
Each production batch is identified so that product information can be traced through the manufacturing and shipment process.
Plain PC strand can be manufactured according to commonly used prestressing steel standards, including:
ASTM A416 – Steel Strand, Uncoated Seven-Wire for Prestressed Concrete
EN 10138 – Prestressing steels
GB/T 5224 – Steel strand for prestressed concrete
The applicable standard should be confirmed before ordering because requirements for diameter, tensile strength, relaxation, elongation, and other mechanical properties can vary between specifications.
Mill test reports and inspection documents are available with shipments according to the order requirements.
Plain PC strand is supplied in coils suitable for handling, storage, and international transportation. Export packing can be arranged according to the buyer's requirements and shipping conditions.
Before shipment, buyers can confirm:
Strand diameter
Grade and standard
Coil weight
Total quantity
Packing requirements
Destination port
Shipping terms
Required inspection documents
We serve international B2B buyers, distributors, precast concrete manufacturers, contractors, and infrastructure projects.
Tianjin Wasungen Metal Products Co., Ltd. supplies plain PC strand from China for international construction and infrastructure projects.
Our supply service focuses on:
Consistent strand quality
Standard-based production
Multiple diameter options
Batch traceability
Export packaging
Mill test documentation
Flexible order requirements
International shipment support
If your project requires a specific diameter, grade, standard, quantity, or packing method, share the details with our sales team for confirmation.
We also supply other types of prestressing steel strand for different project requirements:
Each type is designed for different environmental, structural, and prestressing requirements.
Need plain PC strand for a precast concrete or infrastructure project?
Send us the following information:
Strand diameter
Required standard
Tensile grade
Quantity
Coil or packing requirements
Destination port
We can provide product specifications, pricing, lead time, packing information, and available documentation based on your requirements.
Request your PC strand quote today.
Plain PC strand is used in suitable bonded prestressing systems for precast beams, concrete piles, railway sleepers, bridge girders, slabs, and other prestressed concrete components.
Plain PC strand has an uncoated steel surface, while coated PC strand has an additional protective layer such as epoxy or zinc. The choice depends on the project's environmental and structural requirements.
Common sizes include 12.7mm and 15.2mm. Other sizes may be available depending on production requirements and applicable standards.
Plain PC strand can be used in suitable outdoor applications, but the project environment must be considered. Where exposure to moisture, chlorides, chemicals, or other corrosive conditions is expected, the required corrosion protection should be evaluated by the project engineer.
Plain PC strand can be manufactured according to applicable requirements such as ASTM A416, EN 10138, and GB/T 5224, subject to the ordered specification.
Plain PC strand may have a lower material and processing cost because it does not include an additional coating or protective sheath. The final selection should be based on the complete project requirements rather than price alone.
For an accurate quotation, provide the strand diameter, grade, applicable standard, quantity, packing requirements, destination port, and preferred shipping terms.
Yes. Mill test reports and other inspection documents can be supplied according to the product specification and order requirements.
