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German Mannesmann Technology
State-of-the-art German Mannesmann production lines ensure world-class quality and precision in every coil of strand we ship.
Since 1995 · Qingdao, China
PC strand manufacturer. Seven wires.
Global Overseas is a leading manufacturer of PC strand, anchorage systems, and post-tension accessories. Trusted by EPC projects in 83+ countries.
31
Years of manufacturing
500K+
Tons annual capacity
83+
Export countries
200+
Project references
ASTM A416◆
BS 5896◆
EN 10138◆
AS/NZS 4672◆
IS 14268◆
ISO 9001◆
SGS TESTED◆
PTI CERTIFIED◆
What we make
Steel that holds tension for a hundred years.
Founded in 1995, Global Overseas Group has grown to become one of the world's leading manufacturers of prestressing steel strand and post-tension accessories. With an annual production capacity of over 500,000 tons of PC strand and 90,000 tons of PC wire, we serve construction and infrastructure projects in more than 83 countries worldwide.
Our production lines feature German Mannesmann technology — the benchmark for quality in steel wire manufacturing. Every product is tested to meet ASTM A416, BS 5896, and EN 10138 standards before shipment.
Why Global Overseas
Engineered for zero-compromise infrastructure
From raw material to finished product, we maintain the highest standards in the industry.
02
Full Certification & Testing
ASTM A416, BS 5896, EN 10138 certified. Third-party inspection by SGS, BV and Intertek is available on request.
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Global Logistics from China
Strategic location at a major port in China enables efficient worldwide shipping, with typical lead times of 15–25 days.
Product range
Premium prestressing solutions
ASTM A416, BS 5896 and EN 10138 certified PC strand and accessories.
Prestressed Concrete Strand
9.53mm ASTM A416 Low Relaxation PC Strand
9.53mm (3/8 inch) 7-wire prestressing steel strand conforming to ASTM A416 Grade 270 low relaxation. Ideal for precast concrete elements and smaller tendons.
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Prestressed Concrete Strand
12.7mm ASTM A416 Low Relaxation PC Strand
12.7mm (1/2 inch) 7-wire prestressing steel strand conforming to ASTM A416 Grade 270 low relaxation. Widely used in bridges, buildings and precast elements.
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Prestressed Concrete Strand
15.24mm ASTM A416 Low Relaxation PC Strand
15.24mm (0.6 inch) 7-wire prestressing steel strand conforming to ASTM A416 Grade 270 low relaxation. The most commonly specified size for long-span bridges.
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PC Wire
Prestressed Concrete PC Wire
High tensile prestressed concrete steel wire manufactured to international standards. Suitable for spiral pipe, poles and precast tensioning.
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Unbonded Strand
Unbonded PC Strand for Post Tension System
Unbonded PC strand with grease coating and polyethylene sheath for post-tensioning. Ideal for slabs, beams and ground anchors.
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Anchorage
Plastic Mono Flat Anchor for Post Tension System
Plastic mono flat anchor system designed for post-tensioning of slabs. Lightweight, corrosion-resistant and easy to install.
View detailsCapability
Manufacturing at scale
500Kt
Tons PC strand capacity / year
90Kt
Tons PC wire capacity / year
31yrs
Manufacturing experience
83+
Export countries served
Where it goes
From a 40-storey slab to a 1,100-metre span
Four application families where Global Overseas strand and systems are specified.
Bridges & Viaducts
Post-tensioned girders, decks and segmental construction, from highway overpasses to long-span cable-stayed structures.
Precast & Post-Tensioning
Beams, girders, segmental boxes and flat slabs. The highest-volume application for 15.24 mm strand.
Ground Anchors & Slopes
Unbonded and epoxy-coated strand for retaining walls, dam anchors and slope stabilisation works.
Wind Turbine Towers
Pre- and post-tensioned concrete towers, where low relaxation under permanent load is critical.
Application imagery is illustrative.
How we work
From specification to delivered coil
A transparent export process built for EPC schedules and third-party inspection requirements.
Specification review
We confirm diameter, standard, grade, relaxation class and system compatibility against your drawings before quoting.
Quotation & sample
You receive a commercial offer with packing options and lead time. Reference samples and product data sheets are available.
Production & testing
Strand is produced on Mannesmann lines and tested for tensile, elongation and relaxation. SGS, BV or Intertek inspection on request.
Packing & shipment
Coils are strapped, tagged and loaded at Qingdao port with full documentation for your customs and project records.
Global case studies
Products at work across four continents
Our products power infrastructure projects across 83+ countries.
U.S.A.
2025-11-08 — Project
Metropolitan at Pentagon City Arlington, VA (U.S.A)
PC strand supplied for the Metropolitan at Pentagon City project in Arlington, Virginia, a mixed-use development in the Washington D.C. area.
Brazil
2025-10-15 — Project
Bridge Over Paranoa Lake — Brasilia, Brazil
Prestressed steel strand and accessories supplied for the iconic bridge over Paranoa Lake in Brasilia, Brazil.
Vietnam
2025-09-20 — Project
Twin Tower — The Manor Hanoi Project (Vietnam)
High-rise twin tower project in Hanoi. PC strand supplied for post-tensioned slab and beam systems.
Quick answers
What buyers ask us most often
Short, self-contained answers for engineers, EPC buyers and specifiers evaluating a PC strand supplier.
Definition
What is prestressed concrete (PC) strand?
Prestressed concrete strand is a seven-wire, high-strength steel cable used to apply a controlled compressive force to concrete. Global Overseas manufactures low-relaxation PC strand to ASTM A416 Grade 270 in 9.53 mm, 12.7 mm and 15.24 mm diameters, together with PC wire, unbonded strand, anchorage systems and post-tensioning accessories.
Company status
Manufacturer or trading company?
Global Overseas Group Corp., Ltd. is a direct manufacturer established in 1995, with integrated production lines for PC strand, PC wire and post-tension accessories and an annual capacity exceeding 500,000 tons of strand. The company is based in Qingdao, Shandong, China and exports to more than 83 countries.
Standards
Which standards apply to your strand?
Products are manufactured to ASTM A416, BS 5896, EN 10138, AS/NZS 4672 or IS 14268 depending on the project specification. Third-party inspection by SGS, BV or Intertek can be arranged. The applicable standard for any order is the one written in the approved project specification.
Procurement
What should an RFQ include?
Include nominal diameter, standard and grade, relaxation class, quantity, coil weight or cut length, packing method, destination port, target delivery window and any inspection requirement. For post-tensioning orders also state the anchor type, wedge or jack interface and duct type.
Send your specificationTrusted partners
Global brand partnerships
We supply and collaborate with leading post-tension brands worldwide.
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Ready to specify your next prestressing package?
Send your drawings, standard and quantity — our export engineers reply within one business day.