Ductile Iron Pipe K9 K10 K12 C25 C30 C40 for Water Supply and Drainage Systems - DN80 to DN1600 Sizes

Zhengde ductile iron pipe is a high-performance cast iron alloy containing iron, carbon, and silicon. The graphite exists in spheroidal form (grade 6-7 size) with controlled spheroidization levels of grade 1-3 (≥80% spheroidization rate), providing superior mechanical properties that combine the durability of iron with the strength of steel.

After annealing, the metallographic structure consists of ferrite with minimal pearlite, ensuring excellent mechanical performance for demanding applications.

• Centrifugal casting process ensures uniform wall thickness and structural integrity
• Superior corrosion resistance with zinc and cement mortar coatings
• Excellent ductility and sealing performance for reliable installations
• Faster installation compared to PE pipes with better internal/external pressure resistance
• Optimized hydraulic performance with inner diameter specifications for maximum flow capacity
• Cost-effective solution with superior long-term value

• Choose pipe specifications based on installation site conditions and interface requirements
• Standard rubber rings available in NBR, SBR, EPDM materials
• Select appropriate coatings (epoxy resin, polyurethane, PE film) according to application environment

Shandong Zhengde Metal Manufacturing Co., Ltd. is a comprehensive enterprise integrating production and sales of hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products. With five production bases across China and over 100 production lines, the company maintains 4 nationally recognized laboratories and multiple technical centers, exporting to over 50 countries worldwide.