There are many kinds of well covers, such as single-layer, double-layer, cast iron, ductile iron, composite, cement concrete and so on. Among them, nodular cast iron well cover is widely used. Next Shandong Ductile Iron Well Cover Factory will introduce to you the characteristics of Ductile Iron Well Cover, I hope to help you!
1. Strong corrosion resistance. In the water spray corrosion test, the corrosion amount in 90 days is only 1/40 of steel pipe and 1/10 of gray iron pipe. The service life is twice as long as that of gray iron pipe and five times as long as that of ordinary steel pipe.
2。 Good toughness。 The impact value of medium carbon steel is more than 10 times that of gray iron。
3. High strength. Tensile strength B (> 420 MPa) and yield strength s (> 300 MPa) are the same as low carbon steel and three times as that of gray iron.
4。 Good plasticity。 The elongation (> 7/100) is similar to that of high carbon steel, while that of gray iron is zero。
The strength of ductile iron is comparable to that of cast steel. Ductile iron has higher yield strength, the lowest yield strength is 40k, while the yield strength of cast steel is only 36k. In most municipal applications, such as water, brine, steam, etc., the corrosion resistance and oxidation resistance of ductile iron are higher than that of cast steel. The main application areas are municipal roads, highways, communications, power, tap water, residential areas, schools and other parks.
5. Better anti-theft and safety performance:
Ductile iron well cover grate has similar tensile strength and compressive resistance to steel, so it is also known as cast steel. Compared with traditional grey cast iron, its elongation is greatly improved, its toughness is good, and it is not easy to be damaged. It has better anti-theft performance than ordinary cast iron well cover, and its overall performance is greater than that of ordinary cast iron well cover.
6。 No noise:
Because of the patented structure to prevent noise, there is no noise when the well cover passes by, and it will not disturb the people any more.
In summary, the above is provided by Shandong Ductile Iron Well Cover Manufacturer。 To learn more about gas fired boilers, please pay attention to our website: http://www。jnwszy。com。 Thank you for your support!