Differences between steel pipe and steel tube
Steel pipe has been widely applied in fluids transporting systems,oil and gas industries,thermal and high pressure services.
As pipe emphasize the function of transporting media which under pressure to another place,so pipe always connect with various fittings such as tees,elbows and valves.Such as standards in API 5L,ISO 3183,ASTM A106,ASTM A53,ASTM A333, etc.
Steel tube is mostly in heat exchanging systems,boiler services,vessels,tube bundle, U tubes,food industries,machinery parts etc.So the tube sizes always in less tolerances than pipe.Tube Standards such as carbon material in ASTM A179,ASTM A192,and stainless steel tube in ASTM A213,ASTM A270 etc.
Due to pipe dimension range and applications,the pipe manufacturing processes include seamless (hot rolled or cold drawn) and welded (ERW,LSAW,SSAW).
Tube manufacturing processes usually is in seamless of cold drawn,and welded in ERW.Since tube always in smaller sizes and usually applied in heat-exchanger and mechanical parts,it requires more processes,treatment, and test procedures than pipes.Because of these factors,tube production period is longer than pipe,and not easy for massive production.
Hebei Haihao Group,established in 1982,one of the leading pipe fittings,steel pipes and flanges manufacturers in China.We always abide by the principle of “Customer Oriented,Quality First” and strictly carries out quality control to ensure customer satisfaction.We can produce products in different standards such as API,ANSI,BS, JIS,DIN,EN,GOST,ISO,KS and also in various materials,sizes and specifications. Please feel free to contact us:firstname.lastname@example.org