Ductile iron manhole cover-reasonable price-welcome to buy

Due to the spheroidal graphite microstructure of ductile iron, ductile iron is superior to cast steel in terms of attenuating vibration, so it is more conducive to reducing stress. An important reason for choosing
ductile iron manhole cover
is that the cost of ductile iron is lower than that of cast steel. The low cost of ductile iron makes this material more popular, allows for more efficient casting, and reduces the machining costs of ductile iron.
,,r The strength of ductile iron is comparable to that of cast steel. Ductile iron has a higher yield strength, with a minimum yield strength of
, while cast steel has a yield strength of only
. In most municipal applications, such as water, salt water, steam, etc., the corrosion resistance and oxidation resistance of ductile iron exceed that of cast steel.