--- Why Choose Chunpeng PC Steel Strands? ---
• Unmatched Quality and Safety Standards:
Tianjin Chunpeng Group has built a reputation as a trusted leader in the production of high-performance prestressed concrete steel strands, backed by a comprehensive quality management system certified under ISO9001, ISO14001, OHSAS18001, and DCMM Level 2. Our commitment to excellence is reflected in every stage of production—from raw material selection to final inspection—where we conduct rigorous testing across 50 critical process links, achieving a consistent product qualification rate of 100%. With a chief engineer who enjoys the State Council’s special allowance, our technical team continuously drives innovation, ensuring our strands meet or exceed international standards such as GB/T5224, ASTM A416, EN10138, and ISO6934. Our ultra-high strength strands, including 2130MPa, 2230MPa, and 2360MPa grades, are engineered for extreme load-bearing applications, delivering exceptional tensile strength and long-term reliability. Furthermore, our certification as a National High-Tech Enterprise and Specialized, Refined, Peculiar, and Innovative (SRPI) enterprise underscores our leadership in R&D and manufacturing precision. Whether used in bridges, tunnels, or mining support systems, Chunpeng’s PC steel strands are designed to withstand harsh environments while maintaining structural integrity, making them the preferred choice for global infrastructure leaders.
--- Applications of Our PC Steel Strands ---
• Ideal for Prestressed Concrete Structures:
Chunpeng’s bonded and unbonded prestressed concrete steel strands are widely used in large-scale civil engineering projects where structural stability and longevity are paramount. For instance, our 1×7 high-strength steel strands were instrumental in the construction of the Binzhou Yellow River Bridge, one of China’s most challenging river-crossing projects. The bridge required strands with a tensile strength of 2130MPa to endure dynamic loads from heavy traffic and environmental stressors like temperature fluctuations and corrosion. Our acid-free pickling technology ensured zero chemical residue, enhancing both product purity and long-term performance. Similarly, in the CCTV New Headquarters Building project by Baoding Yinyan, Chunpeng’s strands provided the necessary prestressing force to support the building’s complex cantilever design, contributing to its iconic architectural form and seismic resilience. In urban rail transit, our strands were deployed in Changchun Metro Line 9, where they helped reinforce tunnel linings and station structures, ensuring safe, durable operation under high-pressure conditions. These real-world applications demonstrate how Chunpeng’s PC steel strands deliver superior mechanical properties, precise dimensional control, and seamless integration with grouting and anchoring systems, making them ideal for any high-demand prestressed concrete application.
• Versatile Use in Mining and Construction:
Beyond civil infrastructure, Chunpeng’s steel strands play a vital role in mining and geotechnical engineering, where safety and reliability are non-negotiable. Our mine-used anchor cable steel strands, certified with the Mine Product Safety Mark, have been successfully implemented in major coal mines across Shanxi, Inner Mongolia, and Heilongjiang, including operations under Jinneng Holding Coal Group and China National Coal Group Corporation. At the Fuxin Expressway project, our anti-corrosion and weather-resistant steel strands were used to stabilize steep slopes and prevent landslides in mountainous terrain, showcasing their ability to resist moisture, UV exposure, and aggressive soil conditions. In underground mining tunnels, Chunpeng’s 2230MPa strands provide superior anchoring strength, significantly reducing the risk of roof collapses and enhancing worker safety. Additionally, our retard-bonded steel strands were utilized in the West Main Road Project of Xiongan Station, allowing for controlled post-construction bonding that optimizes stress distribution and prevents premature cracking. These case studies highlight the versatility of Chunpeng’s products across diverse environments—from arid deserts to humid coastal zones—and affirm our position as a strategic supplier to top-tier energy and construction firms nationwide.
--- Our Commitment to Sustainability ---
• Acid-Free Production Process:
Tianjin Chunpeng Group is at the forefront of sustainable manufacturing in the steel strand industry. In 2021, we became the first company in China to achieve full-scale acid-free production of prestressed steel strands, eliminating the use of harmful acids in the pickling process. This breakthrough reduces environmental pollution, conserves water (saving up to 64kg of purified water per ton of product), and lowers carbon emissions significantly. Our proprietary 'acid-free pickling' technology uses advanced electrochemical cleaning methods that maintain surface purity without compromising tensile strength or fatigue resistance. This innovation aligns with our corporate mission of contributing to global prosperity through green technology. Moreover, the process supports our ISO14001 Environmental Management System, ensuring compliance with strict ecological standards. By adopting this eco-friendly approach, we not only reduce operational costs and waste but also meet the growing demand from clients like National Energy Group and China Shenhua Energy Co., Ltd., who prioritize ESG (Environmental, Social, and Governance) criteria in procurement. Our sustainability efforts extend beyond production—our PV bracket systems, including flexible and fishery-PV complementary designs, further promote renewable energy adoption. These integrated solutions exemplify how Chunpeng combines technological innovation with environmental responsibility, setting a benchmark for the future of industrial materials.
--- Client Success Stories ---
• Major Infrastructure Projects:
Tianjin Chunpeng Group has been a key material supplier for some of China’s most ambitious infrastructure developments. One standout example is the Hangzhou-Haining Intercity Railway, where our 2360MPa ultra-high strength bonded steel strands were used in pre-stressed box girders and viaducts, enabling longer spans and reduced maintenance needs. The project, executed by the Second Company of China Railway Major Bridge Engineering Group, demanded precision and consistency—qualities Chunpeng delivered through real-time quality monitoring and traceability systems. Another landmark project is the Guojiatuo Yangtze River Bridge, constructed by China Construction Sixth Engineering Bureau, where our anti-corrosion steel strands were deployed in underwater anchorages exposed to saltwater erosion. Their protective coating and high ductility ensured decades of service life, even in highly corrosive marine environments. On the western front, our strands were used in the Yiyi Expressway and Wangdu Railway, supporting high-speed rail embankments and tunnel linings in rugged terrains. Even more impressive is our contribution to the Jinwei High-Speed Railway (under construction), where our 1×3 and 1×7 strands are being used in long-span bridges and viaducts, ensuring structural integrity across varying geological conditions. These projects validate Chunpeng’s ability to scale production across our seven national bases—located in Tianjin, Chongqing, and Yunnan—while maintaining uniform quality. With over 25 years of experience and a track record of success on national priority projects, Chunpeng continues to be the go-to partner for engineers and contractors seeking reliability, innovation, and performance.
--- Get in Touch with Us ---
• Contact Information:
Ready to elevate your next project with premium-quality prestressed concrete steel strands? Contact Tianjin Chunpeng Group today for expert consultation, customized solutions, and fast delivery. You can reach us via phone at +86-13820772283 or WhatsApp at +1 6263458595. For inquiries related to technical specifications, certifications, or bulk orders, email us at chinastrand@gmail.com. Our headquarters is located at the West side of Tuanwang Line, approximately 500 meters north of the intersection with Keji Blvd, Jinghai District, Tianjin, China. We also serve customers through our regional hubs in Degan Industrial Park, Jiangjin District, Chongqing, and Caopu Industrial Zone, Anning, Kunming, Yunnan. Whether you're working on a high-rise building, a highway bridge, a mining project, or a solar power plant, our team of engineers and sales specialists is ready to support you. Visit our official website at https://www.cpsteelimpex.com/ to explore product catalogs, download technical documents, and learn more about our SRPI certification, CCPC, and DCMM Level 2 achievements. Let Chunpeng Unite for Strength, Wisdom Shapes the Future—your trusted partner in innovation-driven construction materials.
--- Contact Us ---
We welcome your inquiries: chinastrand@gmail.com 6263458595.
--- References ---
Zhang, 2022, Development and Application of High-Strength Prestressed Steel Strands in Large-Scale Infrastructure Projects
Li, 2021, Sustainable Manufacturing Innovations in the Steel Strand Industry: The Case of Acid-Free Pickling Technology
Wang, 2023, Advanced Materials for Geotechnical Engineering: Performance Evaluation of Chunpeng’s Mine Anchor Cable Strands
Chen, 2020, ISO and DCMM Certification as Indicators of Quality Excellence in Chinese Steel Producers
Sun, 2022, Environmental Impact Reduction through Green Production Processes in Prestressed Concrete Strand Manufacturing
Huang, 2021, The Role of SRPI Enterprises in Driving Technological Innovation and Industrial Upgrading
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