Dredge pipe pieces are a variety of

pipes Pipe(s), PIPE(S) or piping may refer to: Objects * Pipe (fluid conveyance), a hollow cylinder following certain dimension rules ** Piping, the use of pipes in industry * Smoking pipe ** Tobacco pipe * Half-pipe and quarter pipe, semi-circula ...

on board of

dredger Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing da ...

s like bend pipe, T-pipe, pitched T-pipe, Y-pipe, cross pipe, strait pipe, and conical pipe. Dredge cross pipe pieces

These dredge pipe pieces are used onboard of dredgers to connect the dredge pump with the discharge pipe. Dredge pitched T-pipe

Mostly the pipes are made from

cast steel Steel casting is a specialized form of casting involving various types of steel cast to either final/net or near-net shape. Steel castings are used when iron castings cannot deliver enough strength or shock resistance.Oberg, p. 1332 Examples ...

. Sometime welded pipes are used. Dredge pipe pieces may have different thicknesses, shapes, and lengths, they are also provided with lifting lugs for easy handling. They are supposed to have a smooth surface for low friction. In most cases the

flange A flange is a protruded ridge, lip or rim, either external or internal, that serves to increase strength (as the flange of an iron beam such as an I-beam or a T-beam); for easy attachment/transfer of contact force with another object (as the f ...

s are cast together with the pipe to provide a stronger connection between the flange and the pipe. It is also very important that the entire dredge pipe pieces follow the shape of the flow resulting in low frictions and avoiding vortexes.
The materials used to manufacture the dredge pipe pieces are both

manganese Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial alloy use ...

the alloy that provides high elongation and impacts value or high chromium,

nickel Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive but large pieces are slow ...

and molybdenum an alloy that gives a high yield, high tensile, and very high hardness values.

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