B125 700mm Round ductile iron manhole cover | D400 ductile iron manhole cover

Ductile well cover are widely used for  municipal roads, highways, communications, electricity, tap water, residential areas, schools and so on a variety of parks.

En124 B125 and D400mm ductile Iron manhole cover has high loading capacity.

The ductile iron manhole covers are generally divided into circles and squares. In the urban road administration, they are generally round because the round covers are not easy to tilt,Which Can protect the safety of pedestrians and vehicles better.

B125 Ductile Iron manhole cover

Use round cover,The main consideration is that the circular manhole cover is the same as the length of each diameter passing through the center of the hole.So if the manhole cover is rolled up by the passing vehicle,No matter how it is rolled, the diameter is slightly wider than the bottom wellhead, and the cover does not fall into the wellhead.

Our company is a professional sales of ductile iron manhole cover, Rain Water grate .

Standards and features:

1.high strength. Tensile strength σs≥420MPa, yield strength σs≥300MPa, same as low carbon steel, three times that of gray iron

2.Good toughness. The impact value is similar to that of medium carbon steel, which is more than 10 times that of gray iron material.

3.Good plasticity. The elongation is as large as 7%, which is similar to high carbon steel, while the gray iron steel has an elongation of zero.

4.Strong corrosion resistance. In the water spray corrosion test, the corrosion amount in 90 days is only one tenth of that of the steel pipe, which is one tenth of that of the gray iron pipe. The service life is twice that of gray cast iron, which is 5 times that of ordinary steel pipe.

If you are interested in our Ductile iron manhole cover and frame, Pls send email to Tony@cxhdcover.com

It’s best to tell us the Size and loading class you need.