Steel Strand & PC Strand Supplier
Bao Steel (Qingdao) Co., Ltd. supplies steel strand and PC strand for prestressed concrete bridges, precast beams, slabs, railway sleepers, concrete poles, piles and infrastructure projects. We support 7-wire PC strand, low relaxation PC strand, unbonded PC strand and galvanized steel strand according to project specifications, tensile strength, diameter, standard, coil packing and inspection requirements.
PC Strand Coils, 7-Wire Structure and Export Packing
PC strand quotation must be based on diameter, strand structure, tensile strength, relaxation class, standard, coil weight, surface condition, packing method and project application. Real product and inspection photos help buyers confirm supply readiness before order.
PC Strand Coil Stock
Show PC strand coils, warehouse storage, coil labels and stock readiness for project supply.
7-Wire PC Strand
Show 1×7 prestressing strand structure, strand surface and cross-section detail.
Low Relaxation PC Strand
Show low relaxation prestressing strand for bridges, beams, slabs and infrastructure projects.
Unbonded PC Strand
Show PE-coated or greased unbonded strand for post-tensioning systems and slab projects.
Galvanized Steel Strand
Show galvanized strand for guy wire, stay wire, support systems and corrosion-exposed use.
Export Packing
Show coil packing, straps, labels, waterproof wrapping, shipping marks and loading preparation.
Choose the Steel Strand or PC Strand Requirement Before Quotation
Steel strand and PC strand are not quoted by product name only. Buyers should confirm strand structure, diameter, tensile strength, relaxation class, standard, coil weight, coating and project application before pricing.
7-Wire PC Strand
For prestressed concrete bridges, beams, slabs, railway sleepers, piles and precast components.
Low Relaxation PC Strand
For projects requiring controlled long-term stress loss and stable prestressing performance.
Unbonded PC Strand
For post-tensioning systems, slabs, buildings, bridges and floor structures.
Galvanized Steel Strand
For guy wire, stay wire, pole support, outdoor support systems and corrosion-exposed applications.
Steel Strand and PC Strand Products We Supply
We support strand sourcing for prestressed concrete contractors, bridge projects, precast plants, railway sleeper factories, concrete pole manufacturers, infrastructure contractors and steel distributors.
7-Wire PC Strand
7-wire PC strand is widely used for prestressed concrete structures that require high tensile strength and stable load transfer.
- Common structure: 1×7 prestressing strand
- Used for bridges, beams, slabs, sleepers, poles, piles and precast concrete components
- Common diameters include 9.3mm, 9.5mm, 12.7mm, 15.2mm, 15.7mm and buyer-specified sizes
- Project standard, tensile strength and relaxation class should be confirmed before quotation
Low Relaxation PC Strand
Low relaxation PC strand is selected when long-term prestressing performance and reduced stress loss are important.
- Commonly used for bridges, post-tensioning, precast beams and high-load concrete elements
- Typical tensile strength levels include 1770MPa and 1860MPa depending on project specification
- Relaxation class, elongation, tensile strength and standard should be provided by the buyer
- Test report, coil labels and inspection documents can be discussed by order requirement
Unbonded PC Strand
Unbonded PC strand is used in post-tensioning systems where the strand is protected by grease and PE sheathing.
- Used for post-tensioned slabs, buildings, bridges, floor systems and parking structures
- Confirm bare strand diameter, coated outer diameter, PE sheath color and grease requirement
- Commonly supplied according to project drawings and post-tensioning system requirements
- Coil packing, cutting length and project labeling can be discussed by order
Galvanized Steel Strand
Galvanized steel strand is used for outdoor support systems where corrosion resistance and strand strength are both required.
- Used for guy wire, stay wire, pole support, overhead line support and structural support systems
- Confirm strand structure, diameter, zinc coating, tensile grade and application environment
- Galvanized surface improves corrosion resistance for outdoor and exposed applications
- Coil packing, labels, shipping marks and loading photos can be arranged by order
PC Strand Standards, Strength and Relaxation Details
For PC strand orders, the most important RFQ details are not only diameter and price. The buyer should confirm applicable standard, tensile strength, relaxation class, elongation, strand structure and project document requirements.
ASTM A416
Commonly requested for 7-wire, uncoated, stress-relieved prestressing strand in many international projects.
BS 5896 / EN Reference
Often used for prestressing steel strand projects where British or European project documentation is required.
GB/T 5224
Common Chinese standard reference for prestressing steel strand supply and domestic production control.
Project Specification
For infrastructure projects, the final requirement should follow drawings, tender documents and engineer approval.
Plain PC Strand, Unbonded Strand and Galvanized Strand
Different strand types serve different engineering purposes. Plain PC strand is mainly used for prestressed concrete. Unbonded strand is used in post-tensioning systems. Galvanized strand is usually selected for outdoor support or guy wire applications.
Plain PC Strand
Used in prestressed concrete elements where the strand bonds with concrete through grout, concrete or tensioning systems.
Low Relaxation Strand
Used where long-term prestress retention and stable mechanical performance are important for structural reliability.
Unbonded PC Strand
Grease-filled and PE-sheathed strand for post-tensioned slabs, buildings and bridge systems.
Galvanized Strand
Used for guy wire, support systems, outdoor installations and corrosion-exposed environments.
Steel Strand and PC Strand Specification Details
The following details are used for quotation review. Final supply should be confirmed according to project standard, strand diameter, tensile strength, relaxation class, coating, coil weight, packing and inspection requirements.
Main Technical Details
- ProductPC strand, steel strand, low relaxation strand, unbonded PC strand, galvanized steel strand
- Structure1×7 PC strand, 7-wire strand, galvanized strand or buyer-specified structure
- Diameter9.3mm, 9.5mm, 12.7mm, 15.2mm, 15.7mm, 17.8mm or buyer-specified size
- Strength1770MPa, 1860MPa, 1960MPa or project-specified tensile strength
- SurfacePlain, bright, low relaxation, galvanized, greased and PE-sheathed unbonded strand
- StandardASTM A416, BS 5896, GB/T 5224, EN reference or project specification
Quotation Details to Confirm
- Relaxation ClassLow relaxation or project-specified relaxation requirement
- Coil DetailsCoil weight, inner diameter, outer diameter, length per coil and handling requirement
- ApplicationBridge, slab, precast beam, sleeper, pole, pile, post-tensioning or guy wire
- TestingTensile test, elongation, relaxation test, diameter check, coating check and inspection report
- DocumentsMTC, test report, packing list, certificate of origin, invoice and loading photos
- DestinationDestination country or port, trade term, shipment schedule and project document requirement
Diameter Checking, Tensile Test and Coil Loading
For PC strand and steel strand orders, buyers usually need to confirm strand structure, diameter, tensile strength, elongation, relaxation performance, coil weight, packing labels and loading photos before shipment.
Diameter Checking
Show strand diameter checking, strand surface review and coil label verification.
Tensile Test
Show tensile strength test, elongation check, relaxation test record or test report support.
Coil Packing and Loading
Show coil packing, waterproof wrapping, straps, labels, forklift loading or container loading.
Common Applications of Steel Strand and PC Strand
PC strand is mainly used in prestressed concrete structures where high tensile strength and long-term structural performance are required. Galvanized strand is mainly used for outdoor support systems and guy wire applications.
Bridge Construction
For prestressed concrete bridges, bridge beams, post-tensioning systems and infrastructure projects.
Precast Concrete
For precast beams, slabs, hollow core slabs, piles, panels and factory-produced concrete components.
Railway Sleepers and Poles
For railway sleepers, concrete poles, pipe piles, spun piles and high-strength concrete elements.
Guy Wire and Support Systems
For galvanized strand used in pole support, stay wire, guy wire, overhead line support and outdoor anchoring.
Bridge, Precast Concrete and Pole Support Use Cases
Use application photos to help buyers connect PC strand supply with real project scenarios such as bridges, slabs, precast beams, sleepers, poles and post-tensioned concrete.
Bridge Prestressing
Show PC strand used in bridge beams, post-tensioning systems or infrastructure construction.
Precast Concrete Components
Show PC strand used for precast beams, slabs, hollow core slabs or concrete elements.
Poles and Railway Sleepers
Show strand applications in concrete poles, railway sleepers, pipe piles or high-strength products.
Standard Review, Tensile Test, Coil Packing and Export Documents
We help buyers check whether the strand specification matches project documents, applicable standard, diameter, tensile strength, relaxation class, coating, coil packing and inspection requirements.
Project Standard Review
Review ASTM A416, BS 5896, GB/T 5224, EN reference or project-specific technical requirements.
Mechanical Test Support
Support tensile strength, elongation, relaxation, diameter and strand structure inspection by order.
Document Support
MTC, test report, packing list, commercial invoice, certificate of origin and loading photos.
Export Packing
Coil packing, waterproof wrapping, steel straps, labels, shipping marks and container loading support.
Common Questions from Steel Strand and PC Strand Buyers
What information should I send for a PC strand quotation?
Send strand diameter, structure, tensile strength, standard, relaxation class, coil weight, quantity, application, destination country or port and required test documents.
What are common PC strand diameters?
Common diameters include 9.3mm, 9.5mm, 12.7mm, 15.2mm, 15.7mm and 17.8mm. Final supply should follow project drawings and technical standards.
What is low relaxation PC strand?
Low relaxation PC strand is designed to reduce long-term stress loss after tensioning. It is commonly used in bridges, slabs, precast beams and infrastructure projects where prestress retention matters.
Can you supply unbonded PC strand?
Yes. Unbonded PC strand can be discussed according to bare strand diameter, coated outer diameter, PE sheath color, grease requirement, coil packing and project specification.
Can you supply galvanized steel strand?
Yes. Galvanized steel strand can be discussed for guy wire, stay wire, pole support, outdoor support systems and corrosion-exposed applications.
Can you provide test report and inspection documents?
Yes. MTC, tensile test report, elongation report, relaxation test information, packing list, certificate of origin, inspection photos and loading photos can be discussed by order.
Related Wire Rod and Steel Wire Product Pages
Steel strand and PC strand buyers may also need carbon steel wire rod, steel wire rope, galvanized wire, rebar, structural steel and export packing support.
Send Your Steel Strand or PC Strand Inquiry
Send strand type, diameter, structure, tensile strength, standard, relaxation class, coil weight, coating requirement, quantity, application and destination details. We will check suitable supply route, test documents, packing and quotation details.
Direct Contact
For Faster Quotation, Please Include
- ✓Strand type: 7-wire PC strand, low relaxation strand, unbonded PC strand or galvanized steel strand.
- ✓Diameter, tensile strength, standard, relaxation class and strand structure.
- ✓Coil weight, packing method, coating requirement, quantity and project application.
- ✓Test report requirement, destination country or port, trade term and shipment schedule.
Document Support
- MTC
- Tensile test
- Elongation report
- Relaxation test
- Packing list
- Certificate of origin
- Inspection photos
- Loading photos
Steel Inquiry Form
Use this form for steel strand, PC strand, low relaxation strand, unbonded PC strand, galvanized strand, steel wire rope and other steel product inquiries.
