Heat, Corrosion and Wear Resistant Castings
Heat Resistant Castings
These castings are used in Furnace Heaters of Petroleum and Chemical units to withstand 900 to 1100 Degree centigrade
These castings are made as per ASTM 351 in various grades like HK, HH ,HF Depending on the temperature at various zones the suitable grade is selected. These items are bought only from vendors approved by consultants like Engineers India Limited (EIL), SHALL oil, KNPC,etc. Nichrome is one of the five approved companies in INDIA and one among 25 in the world.
Names of the castings are..
Wear Resistant Castings
Ni-hard/High Chrome casting Specification IS4771 and Manganese steel castings as per IS 276
These are consumable castings regularly used in coal crushing in thermal power plants and Cement Industries.These castings withstands high wear in the range of 400 to 500 BHN (hardness).
Corrosion at Elevated Temperatures
To withstand temperature and corrosion ASTM A560 50%nickle 50%chrome Nbcastings are used. These castings are also made in HN,HP Nb,SS 316 ect.