Protective Plate 【KN-BLOCK】 Soft Iron Embedded Object Protective Steel Plate
KN-BLOCK, a protective steel plate for underground installations registered with NETIS, protects with the ductility of ultra-soft iron.
The underground protective steel plate "KN-BLOCK" is a protective board designed to safeguard buried utilities from pavement cutter blades in various infrastructure projects, including electrical duct construction, telephone lines, and water pipes. It uses ultra-soft steel as its material, achieving a unique structure that absorbs blade impacts with excellent toughness. Despite a thickness of 12mm, it provides protective performance equivalent to that of a typical 16mm thick SS400 protective board. The reduction in thickness results in a lightweight design, improving transportation and construction efficiency, while also contributing to reduced work burden and environmental impact. This product is registered with NETIS and is recognized as a new technology eligible for evaluation in public works. Kumagai Special Steel has established a consistent production system at its own factory as the manufacturer of KN-BLOCK. It ensures thorough quality control and stable supply. As of July 2025, it has a delivery record to 123 projects across 28 prefectures nationwide and supports nationwide shipping. It safely and reliably supports the electrification of utility poles and the development of road infrastructure.
- Company：Kumagai Specialty Steel Co.,Ltd.
- Price：Other
