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.        Lighterweight

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.