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Steel bar Product List

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Additional acquisition of JIS certification for PC steel bars! *Also available in deformed type.

Additional acquisition of JIS certification for PC steel bars! *Also available in deformed type.

There are proven results in bridge construction and seismic reinforcement work. PC steel bars produced by a bolt manufacturer.

"PC steel bars" are easy to secure due to the rolled thread processing at the ends. They are high-performance, high-quality tension materials suitable for various concrete-related construction methods, including those used by general contractors. By utilizing the technology of prestressed concrete (PC steel bars), we can overcome the weakness of concrete, which is "strong in compression but weak in tension." ★ In October 2018, obtained JIS certification for JIS G3109 B type No. 21Φ. ★ In May 2020, obtained certification for B type No. 1 and C type No. 1 in sizes from 15mm to 40mm. * Certification for deformed PC steel bars (D22, 25, 32, 36) B type No. 1 (May 2020). We have built a track record in various fields, from bridge-related projects to seismic reinforcement work and concrete secondary products. [Features] ■ Set delivery with anchoring components is possible. ■ In-house relaxation tests enhance our quality control system. ■ Sanwa unbonded PC steel bars are also available. For more details about the products, please refer to the PDF materials or feel free to contact us.

  • bolt

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Surface softened bar steel

Surface softened bar steel

This is a steel material that softens only the surface of the full cross-section high-strength (quenching) while significantly improving the delayed fracture characteristics (hydrogen embrittlement resistance) despite being a high-strength steel.

This is a steel rod that has been softened to below 1200 MPa in the surface layer, which is the starting point for delayed fracture, in relation to high-strength steel materials (tensile strength reference: 1200–2200 MPa), thereby reducing the risk of delayed fracture (patent obtained). By applying this technology, the delayed fracture characteristics (hydrogen embrittlement resistance) of high-strength steel materials and high-stress components can be significantly improved, and the softening of the surface layer enhances machinability, making machining easier. It has been mass-produced for high-stress spring steel wire, high-strength deformed PC steel rods, etc.

  • Steel
  • Special Steel

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Thin Diameter Special-Shaped PC Steel Bar "Ulbon(R)" (JIS G 3137)

Thin Diameter Special-Shaped PC Steel Bar "Ulbon(R)" (JIS G 3137)

It is a high-strength PC steel bar with excellent adhesion to concrete for the main reinforcement of PC piles and poles (Type D, Grade 1 compliant).

The irregular PC steel bar "Ulbon(R)" is a high-strength PC steel bar that excels in adhesion performance with concrete and spot weldability. Due to its excellent performance and ease of use, it has received high praise in the pile and pole industry and is widely used as a tensioning material. 【Features】 - Under appropriate working conditions, using a spot welding automatic assembly machine for rebar cage assembly does not significantly reduce mechanical properties. - It has very little relaxation and remains stable even over long periods. - The surface of the steel bar is shaped with spiral grooves along its entire length, providing excellent adhesion to concrete. - When unwound, the coil material becomes straight, eliminating the need for straightening work. - The cross-sectional shape is uniform along its entire length, allowing for direct rolling screw processing. - Our warm forging system enables head processing without reducing mechanical properties, allowing for economical fixation.

  • Steel
  • Other metal materials

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Pre-grouted PC steel bar

Pre-grouted PC steel bar

It is a high corrosion-resistant PC steel bar filled with delayed curing resin inside the sheath, eliminating the need for grouting work at the construction site.

The "Pre-Grout PC Steel Bar," developed to prevent insufficient grout filling at construction sites, is shipped from our controlled factory with the PC steel bar coated in grout and a sheath. This eliminates the need for sheath placement and grout work at the construction site, contributing to improved work efficiency, shortened construction periods, and enhanced reliability of structures. We also provide coupler sheaths treated for rust prevention for use at the connection points. 【Features】 - The surface of the PC steel bar is coated with pre-grout resin and high-density polyethylene sheath, providing excellent corrosion resistance (tested for salt spray and alkali resistance). - The elimination of sheath placement and grout work at the site contributes to labor reduction. - The use of PC steel bars as tensioning materials offers excellent self-support and connectivity, improving work efficiency. - It is possible to select pre-grout resins suitable for various environments (moisture-curing type, heat-curing type).

  • Steel

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Netsuren "PC Steel Bar" (JIS G 3109)

Netsuren "PC Steel Bar" (JIS G 3109)

Netsuren's "PC steel bars" have contributed to the high strength of concrete products for over half a century.

PC steel bars are high-strength steel bars used in prestressed concrete, which improves the properties of concrete that is weak in tension by applying compressive forces in advance, thereby significantly enhancing the strength of concrete structures. They are used to continuously compress the concrete at a high stress level of 80% of the yield point. Netsuren PC steel bars have been widely used for over half a century in various applications including foundation concrete piles, concrete poles for power transmission and communication, concrete sleepers for railways, sewer systems, and box culverts for utility trenches, as well as in bridges and buildings. 【Features】 - Manufactured under one of the best quality control systems in the country, they possess stable mechanical properties and relaxation characteristics. - The ends are processed with rolled threads, allowing for anchoring. - Unbonded PC steel bars with a special asphalt-based polymer coating on the surface are also available.

  • Steel

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Total threaded PC steel rod "Nejibon(R)" (JIS G 3109)

Total threaded PC steel rod "Nejibon(R)" (JIS G 3109)

It is a PC steel bar with a full-thread shape that has high concrete adhesion and can be cut on-site.

Neji-Bon(R) is a fully threaded PC steel bar that has a thread shape similar to that of mechanical joints used in reinforced concrete construction and provides mechanical properties equivalent to PC steel bars. 【Features】 - Since the thread rolling process is not required, it can be cut to any desired length on the construction site and fixed in place. - It can be supplied as a set with fixation accessories. - Upon request, we also offer epoxy resin coating with excellent rust prevention properties.

  • Steel

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