Nodular Cast Iron Manhole Covers
Cast iron, or also known as spheroidal graphite cast iron, is a very unique type of iron. Before the iron casting process is carried out, it is subjected to special processes in order to be extra strong against impacts. These special procedures can also be mentioned as vaccination. Vaccination is performed using magnesium. Conventional gray cast irons have poor tensile strength due to their structure and are therefore very low in impact resistance.
Vaccination using magnesium increases your iron\\\\\\\\\\\\\\\’s impact strength at least twice. This inoculation by adding magnesium to molten liquid metal gives iron a great strength.
Cast iron manhole covers are therefore more robust than other manhole covers. Manhole covers are the most preferred type in the industry. It is known that nodular cast iron manhole covers are very robust thanks to the inoculation process using magnesium.
Cast iron manhole covers are very robust compared to cast iron manhole covers. It has a very robust structure in relation to its weight. It is also 50% lighter than cast iron manhole covers.
Light weight is a great advantage in terms of labor. Transportation and assembly operations are made easier with nodular cast iron manhole covers. Cast iron manhole covers prevent transportation and lifting hazards such as injury.
Cast iron manhole covers, impact-resistant structure allows the distribution of water canals of sewers in the most comfortable way on the surface of the cover.