Brief introduction to high density polyethylene and usages of HDPE granules
3月 25, 2021
没有评论
High Density Polyethylene
What is the seamless pipe?
Seamless tube, as the name suggests, is a long tube without any seams, seamless tube is a kind of hollow cross section, no joints around the long steel. The world’s production of seamless pipe has a total of more than 110 countries more than 1850 companies under the more than 5100 production plants, including the production of oil pipelines have 44 countries more than 170 companies under the more than 260 plants.
What is seamless tube used for?
Seamless steel tubes are widely used. General purpose seamless steel tubes are rolled from common carbon structural steels, low alloy structural steels or alloy structural steels to achieve the highest yield and are mainly used as conduits or structural parts for fluid delivery. 2, according to different uses divided into three types of supply: a, according to the chemical composition and mechanical properties supply; B. Supply according to mechanical properties; C. Supply according to hydraulic test. Steel tubes supplied under Class A and B, if used to withstand liquid pressure, shall also be hydro-tested. 3, special purpose seamless pipe with boiler seamless pipe, chemical power, geological seamless steel pipe and petroleum seamless pipe and other kinds of.
