Welcome to our city of prestressed steel strands...

Low-relaxation high-strength prestressed steel strands, this term is like a melodious tune in the world of steel, an indispensable note in modern construction projects. Prestressed steel strands, as the name suggests, are made by intricately twisting together 2, 3, 7, or even 19 high-strength steel wires, which, like united warriors, jointly bear immense mechanical challenges and varying geological pressures. They undergo stress-relief treatment (stabilization treatment), enhancing their performance, making them particularly suitable for the grand compositions of prestressed concrete and similar applications.

 

 

Its main characteristics, much like treasures within steel, include high tensile strength and excellent relaxation properties, standing tall and straight without any bending when extended. Tensile strength grades vary, from common 1860MPa to 1960, 2160, 2230, and up to 2360MPa. The combination of ultra-high-strength prestressed steel strands with high-strength concrete excels in carrying loads in large-span, heavy-duty, and ultra-long concrete structures, resembling monuments of strength standing at the pinnacle of the construction industry.

Moreover, it withstands low temperatures and harsh high-temperature environments, making it an invaluable material for building nuclear power plant containment shells and bridges under low-temperature conditions in various countries. In Northeast China, where temperatures range from -40°C to -50°C and winters last long, our high-strength low-relaxation prestressed steel strands continue to silently play their role year after year.

To meet the needs of constructing cryogenic compressed natural gas storage tanks, we have developed low-temperature-resistant steel strands that maintain their properties without change even at extremely low temperatures of -192°C.

 

Low-relaxation high-strength prestressed steel strands, this elite of the steel family, uses premium high-end wire rods as raw materials, employing traditional acid washing and phosphating treatment production processes, capable of meeting multi-pass, high-speed drawing production requirements. It undergoes medium-frequency induction tempering under tension, ensuring a perfect and smooth process flow. It embodies the wisdom of craftsmanship, showcasing its exceptional quality under the skilled hands of operators.

UNIVAC focuses on the research and production of prestressed steel strands, meticulously working in the specialized field of prestressed steel strands. Our products are widely used in high-speed railway and highway bridge concrete construction, cable-stayed bridge cables, super-tall buildings, nuclear engineering, LNG oil and gas storage tank construction, mine support, hydropower, wind power, and other important projects. High-performance, diverse prestressed steel strands, like steel dragons, safeguard humanity's brilliant achievements.