List of Top 10 Unbonded PC Strand Brands Popular in European and American Countries

December 13, 2025

**Unbonded PC Strand** Unbonded prestressed concrete (PC) strands are high-strength steel tendons used in post-tensioned structures. Unlike bonded strands, they are coated with grease and encased in plastic sheathing, allowing free movement within the concrete. This enables efficient stress transfer, reduces friction, and enhances durability. Ideal for bridges, buildings, and long-span structures, unbonded strands offer ease of installation, minimal maintenance, and improved seismic performance. Their flexibility supports complex designs while ensuring long-term structural integrity and load-bearing efficiency.

Dywidag
VSL
MPA (Mapei)
CEMEX
Bekaert
Hilti
Sika
Tianjin Chunpeng Group
StrandTec
Tensar
Fives Group

Dywidag

Establishment time : Dywidag was established in 1948.

website : https://www.dywidag.com

Main Product : Main products include high-strength bolts, structural fasteners, and post-tensioning systems for construction.

Company Profile

Dywidag is a globally recognized leader in high-strength structural fastening systems, specializing in bolted connections and post-tensioning solutions for bridges, buildings, and industrial structures. Founded in Germany, it combines decades of engineering expertise with advanced manufacturing to deliver reliable, safety-critical components used in major infrastructure projects worldwide.

VSL

Establishment time : 2008

website : www.vsl.com

Main Product : Marine and offshore solutions, subsea systems, mooring systems, and offshore support vessels

Company Profile

VSL is a global leader in marine and offshore engineering, specializing in innovative subsea and offshore solutions. Founded in 2008, the company delivers high-performance systems for oil and gas, renewable energy, and infrastructure projects, known for technical excellence and project execution.

MPA (Mapei)

Establishment time : Mapei was established in 1937.

website : https://www.mapei.com

Main Product : Main products include adhesives, sealants, waterproofing systems, mortars, and construction chemicals.

Company Profile

Mapei is an Italian multinational company specializing in advanced building materials for construction and renovation, known for its commitment to sustainability, research, and technological advancement.

CEMEX

Establishment time : CEMEX was established on January 1, 1906.

website : https://www.cemex.com

Main Product : Main products include cement, ready-mix concrete, aggregates, and construction solutions.

Company Profile

CEMEX is a global building materials company headquartered in Mexico City, dedicated to sustainable construction solutions through innovation, digital transformation, and responsible resource management.

Bekaert

Establishment time : Bekaert was established in 1880.

website : https://www.bekaert.com

Main Product : Main products include steel wire, steel cord for tires, specialty wires, and advanced materials for industrial applications.

Company Profile

Bekaert is a global leader in high-performance steel wire and advanced materials, founded in Belgium in 1880, with a strong focus on innovation, sustainability, and industrial solutions across tire reinforcement, construction, and infrastructure sectors.

Hilti

Establishment time : Hilti was established in 1941.

website : www.hilti.com

Main Product : Main products include power tools, fastening systems, drilling equipment, and construction software.

Company Profile

Hilti is a globally recognized leader in the development, production, and distribution of professional tools, accessories, and software for the construction industry, known for its commitment to innovation, sustainability, and customer-centric solutions.

Sika

Establishment time : Sika was established in 1910.

website : https://www.sika.com

Main Product : Main products include construction chemicals, sealants, adhesives, coatings, and specialty materials.

Company Profile

Sika is a global leader in the development, production, and marketing of specialized chemical products for construction, infrastructure, and industrial applications, focusing on innovation, sustainability, and performance.

Tianjin Chunpeng Group

Establishment time : 1994

website : www.cpsteelimpex.com

Main Product : pc steel strand,PC Steel Wire,Photovoltaic Mounting System,Unbonded PC Strand,PC Steel Strand Professional Manufacturer,PC strand Anchorage System

Company Profile

Chunpeng Group was founded in 1994. Its headquarters is located in Daqiuzhuang Industrial Zone, Jinghai District, Tianjin. Its industries are distributed in Tianjin, Chongqing, and Yunnan Province. The total registered capital is 315 million. It is a joint-stock enterprise specializing in the production of prestressed concrete steel strands, mining anchor cable steel strands, unbonded steel strands, galvanized steel strands, photovoltaic brackets and accessories. Its products are widely used in railway and highway bridges, coal mine tunnel support, water conservancy and hydropower station construction, geotechnical anchoring engineering, high-rise buildings, stadium construction, nuclear power plants, LNG gas storage fields, new energy photovoltaic power generation, wind power generation and other important areas of national economic construction.

Stable quality:

We have a strong quality management team, and our chief engineer enjoys the honor of "Special Allowance of the State Council". In addition, we have accumulated 30 years of production management experience, which makes our products have excellent performance and reliable quality. We implement ISO9001 quality management system standards, and all process links are fully controlled and inspected, making the qualified rate of factory products 100%.

Adequate production capacity:

The Group has 7 production bases across the country (4 in Tianjin, 2 in Chongqing, and 1 in Yunnan), with a total steel strand production capacity of 700,000 tons/year, which can fully meet the supply requirements of various construction projects.

Advanced technology: The company provides two production processes, "acid-free process" and "acid-free process" to meet the needs of different customers. The "acid-free process" was developed by Chunpeng. This process reduces the consumption of 64kg of clean water, 5.5kg of gas, 6kg of hazardous waste - waste acid and the amount of waste gas generated by each product in the traditional pickling process to 0! It achieves green and low-carbon operation.

Complete specifications:

Product structure: 1*3, 1×7, 1×19. Diameter range: φ6~32, covering a wide range of domestic and international needs, and can be customized according to customer's personalized requirements. It can also produce unbonded steel strands, slow-bonded steel strands, anti-corrosion and weather-resistant steel strands, galvanized steel strands and other derivative products.

StrandTec

Establishment time : StrandTec was established in 2004.

website : www.strandtec.com

Main Product : Main products include fiber optic connectors, patch cords, adapters, and passive optical components.

Company Profile

StrandTec is a global supplier of high-performance fiber optic connectivity solutions, specializing in precision-engineered components for telecommunications, data centers, and enterprise networks.

Tensar

Establishment time : Tensar was established in 1978.

website : https://www.tensar.com

Main Product : Main products include geogrids, geocells, and ground improvement systems for civil engineering applications.

Company Profile

Tensar is a global leader in geosynthetic solutions for infrastructure projects, specializing in soil reinforcement and ground stabilization technologies used in roads, railways, retaining walls, and slope protection.

Fives Group

Establishment time : The Fives Group was established in 1823.

website : https://www.fives.com

Main Product : Main products include industrial machinery, automation systems, and environmental solutions.

Company Profile

The Fives Group is a French multinational engineering company specializing in the design and manufacturing of high-performance industrial equipment, with a strong focus on innovation, sustainability, and digital transformation across various industries including metals, energy, and transportation.

Author:

Ms. Lingyun

E-mail:

chinastrand@gmail.com

Phone/WhatsApp:

+1 6263458595