Stainless steel pipe is a kind of hollow long circular steel, mainly widely used in petroleum, chemical, medical, food, light industry, mechanical instruments and other industrial transportation pipeline and mechanical structure parts. In addition, in bending, torsional strength is the same, light weight, so it is also widely used in the manufacture of mechanical parts and engineering structures. Also commonly used for furniture kitchenware.

Standard: API 5L
Application: For gas, water, transportation in Petroleum and natural gas industries

The process begins with solid steel rounds, or billets, being cut to a specified length and sent through a walking-beam reheat furnace, where temperatures reach nearly 2,300°F. After exiting the reheat furnace, the preheated rounds are turned into a tube shell in the rotary piercing mill as the billets are cross-rolled between two barrel-shaped rolls at a high speed. The seamless shells enter mandrel mill, where they are rolled over a retained mandrel to provide the needed OD size and wall thickness for the next process. The process is carefully monitored using a state-of-the-art hot-wall measuring system. The shells are then reheated for final forming in a 24-stand stretch-reducing mill, where outside diameters are formed to customers’ exacting specifications. Wall thickness is again verified using a hot-wall measuring system. After being rotated and advanced on the walking-beam cooling bed, the pipes are batch cut and transferred to an in-process storage area, where they are handled by computer-controlled gantry cranes.

Standard: GB/T8162-1999, ASTM A53, ASTM A106, ASTM A500-98, ASTM A501-98, ASTM A519-98, JIS G3441-1994, JIS G3444-1994, BS EN 10210-1
Application: Used in the general structure and the mechanism, including construction, machinery, transportation, aviation, petroleum mining and each kind of structural tubes

Standard: GB/T8163-1999, ASTM A53-98, JIS G3452-1998, JIS G3454-1998, ASTM A106, DIN 1629-1984
Application: For conveying of petroleum, gas and other fluids

Standard: GB3087-1999, ASTM A179, JIS G3454, ASTM A210, ASTM A192, ASTM A335, ASTM A333, ASTM A268, DIN 17175
Application: Used for manufacturing superheated pipelines, the steam pipe, boiling water tube, flue tube, small flue tube, etc.of low, mediam pressure boiler, the general industry boiler