Retard-bonded Prestressed Steel Strand 2230-12.9

Retard-bonded PC Strand for High-Performance Construction Applications Retard-bonded PC Strand is a specialized type of Prestressed Steel strand designed to provide enhanced structural integrity and durability in various construction projects. This product, known under different names such as prestressed steel strand 2230 12 9, retard bonded pc strand 2230 12 9, and steel strand 2230 12 9 retard bonded, is widely used in the manufacturing of precast concrete elements where controlled bond characteristics are essential. The term "retard-bond" refers to the delayed adhesion between the steel strand and the surrounding concrete, which allows for better load distribution and improved performance over time. The key features of this high-strength steel strand include its exceptional tensile strength, corrosion resistance, and ability to withstand extreme environmental conditions. Manufactured using advanced cold-drawing techniques, the strand ensures uniformity in diameter and surface finish, making it ideal for applications that require precision and reliability. The designation "2230 12 9" indicates the specific grade and dimensions of the strand, with 2230 representing the minimum tensile strength in MPa, 12 referring to the number of wires in the strand, and 9 indicating the wire diameter in millimeters. This type of prestressed steel strand is particularly useful in the construction of bridges, high-rise buildings, and other large-scale infrastructure projects where long-term stability and load-bearing capacity are critical. The retard-bond technology helps prevent premature cracking and enhances the overall lifespan of the structure. By allowing the strand to move slightly within the concrete matrix before bonding fully, it reduces stress concentrations and improves the structural behavior under dynamic loads. 

Chunpeng Group is a leading and professional manufacturer of prestressed concrete (PC) steel materials, with over 30 years of industry experience.

We are committed to delivering high-quality products and innovative solutions for infrastructure and construction projects worldwide.

Our core products are  pc steel strand  (Ultra High Tensile Strength PC Strand, Normal Tensile Strength PC Strand), Unbounded PC Strand, Galvanized PC Steel Strand, Weather-Resistant & Anti-Corrosion PC Strand, and  PC Steel Wire . 

In addition to our PC strand products, we also supply  Prestressed Anchorage Systems and Photovoltaic Mounting Systems. 

Our products are as follows:

l Prestressed Steel Material include ultra high tensile strength PC Strand, Normal Tensile Strength PC Strand, Unbonded PC Strand , Epoxy Coated PC Strand , PC Steel Wire, Galvanized PC Steel Strand.

l Accessories Of PC Strand include Prestressed Anchorage, Prestressed Bellows , Aanchor Bearing Plate

l Prestressed Cable Photovoltaic Mounting System

l Photovoltaic Mounting System

  Our Prestressed Concrete Steel Strand is widely used in bridges, highways, railways, high-rise buildings, and energy infrastructure projects. All products are manufactured in compliance with international standards such as ASTM, BS, EN, AS/NZS, and GB, ensuring excellent performance, durability, and reliability for global construction needs.