Uniform cross-sectional shape throughout the entire length! Deformed PC steel bars for pre-tensioning method.
"Urubon" is a fine diameter deformed PC steel bar that complies with JIS G 3137 (fine diameter deformed PC steel bars) Type D No. 1, featuring excellent mechanical properties and ease of use. Under appropriate working conditions, using a spot welding automatic assembly machine for rebar cage formation does not significantly reduce mechanical properties. Additionally, the surface of the steel bar is shaped with spiral grooves along its entire length, providing excellent adhesion to concrete. [Features] ■ Complies with JIS G 3137 (fine diameter deformed PC steel bars) Type D No. 1 ■ Coil material unwinds into a straight line, eliminating the need for straightening work ■ Very little relaxation, remaining stable even over long periods ■ Excellent adhesion to concrete ■ Uniform cross-sectional shape along the entire length, allowing for direct rolling screw processing *For more details, please refer to the PDF document or feel free to contact us.
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【Other Features】 ■ Under appropriate working conditions, using a spot welding automatic assembly machine for rebar cages does not significantly reduce mechanical properties. ■ Low relaxation Ulbon exhibits only 8% or 15% relaxation even under high-temperature conditions in autoclave curing, allowing for economical reinforcement. ■ The warm forging system enables head processing without reducing mechanical properties, making economical anchoring possible. *For more details, please refer to the PDF document or feel free to contact us.
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【Usage】 ■ For pre-tensioning method *For more details, please refer to the PDF document or feel free to contact us.
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The NAPP Method Technical Research Association conducts research on the NAPP method, which is a PC method using hollow PC steel bars. Please feel free to contact us if you have any requests.