C250 D400 Round Ductile Iron Manhole Cover

C250 D400 Round Ductile Iron Manhole Cover is a high-performance infrastructure solution adhering to EN 1563 (ductile iron standard) and EN 124 load classification, engineered for reliable underground facility protection. Crafted from premium ductile iron, it delivers exceptional mechanical properties: tensile strength ≥420MPa, yield strength ≥300MPa, and impact toughness ≥12J/cm² at -20℃, ensuring no deformation or cracking even under long-term heavy use.

The cover features anti-slip surface patterns to prevent accidents, optional anti-theft locks, and rubber sealing rings for leakproof performance, while its lightweight design (compared to traditional cast iron) simplifies installation and maintenance. As a core product in municipal and industrial projects, the C250 D400 Round Ductile Iron Manhole Cover is trusted for its durability, versatility, and compliance with global quality standards, serving as a long-term investment for infrastructure stability.

Ductile iron manhole covers are the first line of defense for urban infrastructure safety. Our products have passed comprehensive testing according to authoritative standards such as GB/T23858-2009, CJ/T511-2017, and GB/T41401-2022, effectively preventing safety hazards such as manhole cover damage, displacement, and slippage. With our professional qualifications, advanced equipment, and comprehensive services, we provide you with reliable, fast, and cost-effective manhole cover solutions. Let us work together to safeguard urban safety, improve the quality of public facilities, and create a safer and more comfortable living environment.