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Specifications
Ductile Iron manhole cover & grating
1. Light weight,Anti-corrosive
2. High pressure endurance
3. Easy to install and open
4. Long and steady service
 
                        
Ductile Iron manhole cover & grating 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.

Advantages of ductile iron manhole cover & grating:
1.    Low-cost
2.    High strength,
3.    Toughness, 
4.    Lighter weight

 
Ductile Iron manhole cover & grating Tehcinical Data:
Name：Ductile Iron manhole cover & grating
Material: Ductile Iron GGG500/7
Standard: EN124/1433/1563
Class: A15, B125, C250, D400, E600, F900
Shape: Round, Square, Rectangle, Triangle and other shape
Size: customized size from 300*300 to 1000*1000
Paint: Bituminous black
Advantage: Longevity corrosion resistance, Excellent anti-pressure
Molding: Depends in 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
Products: manhole cover & gratings and grates, valves, machinery parts, cookers, valve bodies, pipe fittings, auto parts.,etc

 
Ductile Iron manhole cover & grating Applications:
1. Heavy-duty covers for motor vehicle Road, municipal pipalines, communications, power and water supply works.
2.Light covers applied to sidewalks, parks, squares, green belt, municipal pipelines and other projects.
 
Contact Information
Alina Cao
Email: alinacao@ydtcast.com
Skype:yaditecast
MSN: yaditecasting
Web: www.ydtcasting.com