Oil heating - Import export

Fine Tubes leads the manufacture of precision tubes required in the fabrication of shell and tube heat exchangers. Our heat exchanger tubes are used for the cooling, heating, or re-heating of fluids, gases, or air in a diverse range of industries. Alloys Fine Tubes heat exchanger products are produced as seamless, welded or welded redrawn tubes in the following materials nickel alloys, stainless steels, duplex, super duplex. Please note that we have a minimum order value of £10,000.

Alloy 718 was initially developed for the aerospace industry but its excellent strength and corrosion resistance were recognised by the oil industry and it is now widely used in this field also. Alloy 718 is a nickel-chromium alloy with additions of niobium & molybdenum which can be heat-treated to give high strength, good corrosion resistance, ease of formability and which can be welded with good resistance to strain age cracking. The alloy can be used at temperatures up to 700ºC. Alloy 718 for the oil industry is heat treated such that the hardness does not exceed 40HRC which is the maximum allowed by NACE MR-01-75/ ISO 15156: 3 to prevent stress corrosion cracking. Alloy 718 for aerospace and power generation is heat treated to give maximum strength and high creep resistance with typical hardness values exceeding 42HRC. The major applications are components for gas turbines, aircraft engines Please note that we have a minimum order value of £10,000.