Stainless steel tubes are available in a wide variety of applications, with different technical requirements and different production methods. The outer diameter of the currently produced steel pipe ranges from 0.1 to 4500 mm and the wall thickness ranges from 0.01 to 250 mm. In order to distinguish the characteristics, the steel pipes are usually classified as follows :

1.Sanitary tubing: for food processing industry, beverage industry etc ;

2.Industiral pipe: for petroleum delivery, gas delivery, petrochemical industry, wastewater treatment, drainage system etc;

3.Mechanical pipe: handrail, railings, balustrade, hence and so on ;

4.Heat exchanger tube: condenser, boiler, super heater, evaporator and so on;