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ProductsDiscover Ruibaolong's full range of High-Performance PC Steel Wire, PC Steel Bar, and Cold Drawn Wire. We specialize in SWRH82B Spiral Ribbed, Plain, and Indented surfaces, as well as Hose Reinforcement Wire. ISO 9001 certified manufacturer for PCCP and infrastructure projects.
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About UsTianjin Ruibaolong Prestressed Steel Strand Co., Ltd. is a leading ISO 9001 certified manufacturer established in 2010. We specialize in producing and exporting high-quality PC wire and steel bars globally.
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Classic CasesBrowse our portfolio of successful infrastructure projects. From domestic water diversion systems to international railway construction, see how Ruibaolong steel wire powers global engineering.
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BlogAbout Ruibaolong We are a professional metal products manufacturer dedicated to High-Performance PC Steel Wire. With a strong market network covering China and an expanding global footprint, we supply essential materials for bridges, buildings, and infrastructure. Here, we share our journey in connecting the world with strength and durability.
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Contact UsGet in touch with Ruibaolong for factory-direct quotes on PC Wire and Steel Bars. Located in Tianjin, China. Contact our export team today for technical support and pricing.
XINYUE
FAQ
Prestressed steel strands are stranded steel cables composed of 2, 3, 7, or 19 high-strength steel wires, and are stress-relieved (stabilized), suitable for prestressed concrete and similar applications.
The main characteristics of prestressed steel strands are high strength and good relaxation performance, and they are relatively straight when deployed. Common tensile strength grades are 1860 MPa, and there are also strength grades such as 1720, 1770, 1960, 2000, 2160, 2230, and 2360 MPa. This steel also has high yield strength.
Prestressed steel strands are mainly made of cold-drawn high-carbon steel, with a small amount of phosphate and lubricant residue on the surface.
When the strength is particularly high (such as 2300 MPa), alloying elements such as chromium need to be added. The zinc-plated high-strength product can improve the silicon content.
Some carbon steel prestressed steel strands have coatings on their surface, such as zinc, zinc-aluminum alloy, zinc-aluminum-magnesium alloy, epoxy resin, anticorrosive grease, polyester, and high-density polyethylene sheath.
Stainless steel can also be used to make prestressed steel strands, using high-strength duplex stainless steel.
Strand wire is mainly used for lifting projects, and also for nuclear power projects.
19-wire large diameter strand wire is often used for mine roadway support anchor cables.
Unbonded prestressing strand wire is often used for building floor slabs and some geotechnical anchor cables.
Galvanized strand wire is often used for bridge tie rods, cables and external prestressing projects. Epoxy coated strand wire has similar uses to galvanized prestressing strand wire and is suitable for projects with high durability requirements.
GB/T 5224-2023 [1] Steel wire for prestressed concrete (effective March 1, 2024)
GB/T 33363 — 2016 Prestressed hot-dip galvanized steel wire
GB/T 21073-2007 Epoxy coated steel wire
JG/T 161-2016 Unbonded prestressing steel wire
Foreign standards such as:
American ASTM A416 / A416M - 18 7-wire steel wire for prestressed concrete
British BS 5896: 2012
Japanese JIS G3536
European Union EN 10138-3
Australia and New Zealand AS/NZS 4672
Brazilian NBR-7483
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Tianjin Ruibaolong Prestressed Steel Strand Co., Ltd. is one of the professional manufacturers specializing in the research, development, production, and operation of prestressed steel wires, cold-drawn steel wires, and steel wires for roll welding machines.
Address: No. 3, Tianyu Road, Tianyu Science and Technology Park, Jinghai District, Tianjin
Email: globaltrade@rblprestress.com
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