Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

Tubes for heat exchangers

Heat exchangers are used in the energy and chemical industries, for heating buildings, domestic hot water, etc. Pipes enable the transfer of energy from one medium to another.

Application examples:

  • steam-water heat exchangers (for cooling steam to produce cooling water);
  • air-to-water heat exchangers (for heat transfer from air to water to heat or cool buildings);
  • water-water heat exchangers (for heat transfer between two streams of water);
  • air-to-air heat exchangers (for heat transfer between two air streams).
Calculate the weight of pipes

Calculate the weight of pipes

Use our calculator to determine the exact weight of pipes you are interested in.
Check

Standards

  • EN 10216-2 Seamless steel tubes for pressure purposes. TDC. Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties.
  • DIN 28180 Seamless steel tubes for tubular heat exchangers. Dimensions, tolerances, materials.
  • DIN 17175 Seamless steel tubes for elevated temperatures. TDC.
  • DIN 1629 Seamless circular tubes of non-alloy steel with special quality requirements. TDC.

Steel grades

  • according to EN 10216-2: 16Mo3, P235GH
  • according to DIN 17175: 15Mo3, St35.8
  • according to DIN 1629: St37.0
  • according to DIN 17173: TT St35N

Heat exchanger tubes are usually cold drawn, upon agreement it is olso possible to supply hot rolled tubes. A delivery of tubes with a medium wall thickness must be agreed while ordering.

Cold drawn steel heat exchanger tubes

Cold drawn steel tubes for heat exchangers with a minimum wall thickness (sizes in inch)

Cold drawn steel tubes for heat exchangers with a medium wall thickness (sizes in inch)

Boiler tubes

Boiler tubes work in very difficult conditions – at extremely high temperature and pressure. This requires from the pipe manufacturers a perfect knowledge of the physicochemical phenomena occurring in the pipes installed in the boilers and the changes in mechanical properties occurring in the steel structures used for the production of these pipes. One of the most common destructive physicochemical processes is corrosion caused by the oxidizing effect of steam on iron. The formation of steam, a decrease in the heat dissipation coefficient, a local increase in the temperature of the pipe walls are factors that significantly increase the corrosion effect of water vapor on the metal, especially on already pre-oxidized surfaces. The degree of this oxidation may vary and also depends on the storage period of the pipes. Hence, an important factor securing pipes against quick deterioration during operation, in addition to ensuring high smoothness of the pipe walls, is securing them for the period of storage.