Heat Exchanger Tube is major component part in heat transfer system, which transfer heat from one fluid to another fluid, shell and tube heat exchanger is the most popular type, and requiring number of tubes inside it to form tube bundle, these tubes insert and joint to tube sheet as a whole.
Stainless Steel Material
We specialize in stainless steel tube for heat exchanger, stainless steel material has a ideal properties to suit heat exchanger applications, obviously, different grades provide special properties.
Depending on applied environment to select proper stainless steel grades, common material include TP304, TP304L, TP316L, TP321, TP347, S32205/2205, and partial Ferritic steel grades.
Welded, Seamless Tube
Welded and seamless tubes are available for heat exchanger, main specifications have ASTM A249 and ASTM A213 separately, we manufacture welded tubes using TIG welding method starting from coil strip, cost effective and tight tolerance are main advantages for welded tube.
Seamless tubes is another way to be produced, made from billet by cold drawing and cold rolled extrusion process, compared to welded tube, seamless type tube usually have a long life usage, not easy to corrosion.
Tube Sizes and Dimensions
Normal tube outside diameters are 15.88 mm, 19.05 mm, 25.4 mm and 31.8 mm, smaller or larger diameter tube is also offered, tube wall thickness ranges from 0.71 to 2.11 mm, BWG 14 to 22, thinner wall for welded tube is available.
Average wall and minimum wall are options according to heat exchanger designers calculation, also choose straight tubes and U shape tubes.
Expansion: tubes are commonly expanded to joint to tube sheet, according to failure analysis, inferior tube is likely to damage or corrosion after expansion, because heat exchanger is applied in high temperate, low temperate and corrosion environment, high quality tubes are strongly required.