What is seamless steel pipe and thermal expansion pipe?
Technically speaking, any seamless steel pipe can be called thermal expansion pipe, thermal expansion process is major production process of seamless steel pipe; while there is another type of thermal expansion pipe-large diameter seamless steel pipe, as it is not possible to reach desired diameter in one pipe thermal expansion process, this process have to be taken 2 times.
Advantages: Thermal expansion pipe has low density and high contraction property; It could replace part of the steel profiles; Saves about 1/3 of steel material, reduces protection layer area, lower the investment and maintenance cost.