• Bengal Iron Corporation

Soil Pipes & Fittings

Bengal Iron Corporation manufactures a range of Soil Pipes and Fittings, making use of good quality pig iron, hard coke and limestone melted through cupola to get good quality molten metal. The molten metal is checked in the carbon, silicon analyser machine to get the right chemical composition. The chemical composition of the molten metal is: CE:4.30%; C:3.50%; and Si:2.20%. In the centrifugal pipe casting process, water cooled metal mould is rotated on a horizontal axis during the interval of time, it receives a pre-measured quality of molten iron. The centrifugal force created by this rotation causes the liquid iron to spread uniformly onto mould’s inner surface, thereby forming upon solidification a cylindrical pipe conforming to the inside dimensions of the mould. After the pipe is cast, it is allowed to solidify in the still rotating mould and finally the pipe is removed from the mould. The pipe cast under this water cooled process increases the hardness, therefore, the pipes are stress relieved at above 800°C in the annealing furnace, thereby, reducing the hardness. After the stress reliving, the pipes are tested to ensure it is leak proof and then painted with red primer on the outer surface and black bitumen in the inner surface.
Product advantage:

• Durability
• Smooth surface finish
• Resistant to corrosion
• Uniform thickness
• Fire resistant
• Environment friendly
• Recyclable.