Specifications      

Ductile Iron Manhole Cover

     

1. Light weight,Anti-corrosive

     

2. High pressure endurance

     

3. Easy to install and open

     

4. Long and steady service

     

 

     

                        

     

Ductile Iron Manhole Cover features:

     

1. High strength:The tensile strength of ductile iron is more than 420Mpa and the yield strength is more than 300MPa, three times more than gray iron.

     

2. Good toughness: impact value is similar to carbon steel and 10 times than grey iron.

     

3. Good plasticity. Elongation of ductile is more than 7% which is similar with high-carbon steel, gray iron material and extend rate is zero.

     

4. Anti-corrosion resistance: The corrosion was only 0.25 times of pipes during ninety days spray corrosion test and 0.1 times of gray iron pipes. The life is 2 times longer than gray iron pipes and 5 times longer than ordinary steel pipe. 

     

5. Applied In most municipal applications: water, salt water, steam, the corrosion resistance and oxidation resistance of cast iron are more than steel. Because of the spherical graphite cast iron microstructure, ductile iron does better than steel in reduced vibration capacity.

     

 

     

Advantages of ductile iron manhole cover:

     

1. Low-cost

     

2. High strength,

     

3. Toughness,

     

4. Lighter weight

     

 

     

 

     

Ductile Iron Manhole Cover Tehcinical Data:

     

 

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

Name	Ductile Iron Manhole Cover
Material	Ductile iron GGG50/7, gray iron
Standard	EN124/1433/1563
Class	A15,B125,C250,D400,E600,F900
Shape	Round, Square, Rectangle, Triangle and other shape
Size	From 300*300 to 1000*1000 or custom size
Paint	Bituminous black
Advantage	Longevity corrosion resistance, Excellent anti-pressure
Molding	Depends on the design
Process	Drawing-mould making-raw casting-sand blasting-rough machining-surface treatment-product inspection
Application	footway, pedestrians, car parks, aircraft pavements
Certificate	BSI, ISO9001:2000
OtherInformation	Manhole covers and grates, furnace, bases, machinery parts, cookers, valve bodies, pipe fittings, auto parts
Products	Manhole covers and grates, Furnace, bases, Machinery parts, cookers, Valve bodies, pipe fittings, Auto parts