D400 SMC Manhole Cover Rot Proof in Gas Station Co: Dia 600mm Easily Assembled Square FRP Manhole Anti UV Low-Maintenance

• Customization: Available
• After-sales Service: Customized
• Warranty: Customized
• Model NO.: 11
• Material: Iron
• Shape: Round
• Certification: RoHS, ISO, CE
• Color: Customized
• Surface Treatment: Anti UV
• Forming Way: Composite Manhole Cover
• Type: Waterproof Manhole Cover
• Square Manhole Cover: Square /Round Manhole Cover
• Manhole Cover Waterproof: Inspection Manhole Cover
• MOQ: 2 Tons
• Features: Solid Top, Anti-Theft, Auti-Rust, Less Noise
• Logo: Customized Available
• Transport Package: Plywood
• Specification: Customized
• Origin: China
• Package Size: 120.00cm * 235.00cm * 239.00cm
• Package Gross Weight: 2000.000kg

Product Description

Introduction to Ductile Iron Manhole Cover
 
Ductile iron manhole covers are a type of ductile iron product. Ductile iron obtains spherical graphite through spheroidization and inoculation treatment, effectively improving the mechanical properties of cast iron, especially enhancing plasticity and toughness, resulting in higher strength than carbon steel.
 
Ductile iron is a high-strength cast iron material developed in the 1950s, with comprehensive properties similar to steel. Based on its excellent performance, it has been successfully used to cast some castings with complex stress, high requirements for strength, toughness, and wear resistance.
 
Characteristics of Ductile Iron Manhole Cover
 
Good resilience: The impact value is similar to that of medium carbon steel and more than 10 times that of gray iron materials.
Strong corrosion resistance: The water spray corrosion test showed that the corrosion rate after 90 days was only 1/40 of steel pipes and 1/10 of that of gray iron pipes. Its service life is twice that of gray iron pipes and five times that of ordinary steel pipes.
Good plasticity: The elongation rate is ≥7%, similar to that of high carbon steel, while the elongation rate of gray iron material is zero.
High strength: The tensile strength σb ≥ 420MPa and the yield strength σs ≥ 300MPa are the same as low-carbon steel and three times that of gray iron materials.

Item	Manhole cover
Material	Ductile iron GGG500/7,Gray iron,etc
Dimensions	As your demands
Surface	bitumen/epoxy painting/etc /or as your request
Coating	Black bitumen painting; coating as per customers' requirements
Load capacity	A15,B125,C250,D400,E600,F900
Color	grey/black/as your request
Weight	5-120kg/ as your requirement
Feature	anti-theft, Auti-rust, less noise, long time sevice,durable, easy to assemble & dismantle
Note	OEM service is available
Package	wooden pallets or steel pallets, or as your request
Payment Terms	TT,L/C, we can contact in detail