Seamless Steel Pipe
A Seamless Steel Pipe, which is made of whole metal and has no joints on the surface, is called seamless Steel Pipe. According to the production method, seamless tubes are divided into hot rolled tubes, cold rolled tubes, cold drawn pipes, extruded pipes, pipe jacking, etc. According to the cross-section shape, seamless steel pipe is divided into circular and special-shaped two kinds, special-shaped pipe has square, elliptical, triangular, hexagonal, melon seed, star, with finned tube a variety of complex shapes. The maximum diameter is 650 mm and the minimum diameter is 0.3 mm. According to different uses, there are thick walled tubes and thin walled tubes. Seamless steel pipe is mainly used for petroleum geological drilling pipe, Petrochemical cracking pipe, boiler pipe, bearing pipe and automobile, tractor, aviation high-precision structural steel pipe.
Specification Description Chinese English Outside Diameter Wall Thickness Outside Diameter Wall Thickness 21mm-1016mm 2mm-100mm 3/8 to 40inch SCH40 to XXS Material and Standard Item Chinese Standard American Standard German Standard 1) 10# A53A St37 A106A St37-2 DIN17175 A179C St35.8 DIN1629 2) 20# ASTMA106-B St45-8 DIN17175 ASTMA53-B St42-2 DIN1626 ASTMA178-C St45-4 DIN1629 3) 45# ASTMA1045 CK45 4) 16Mn ASTMA210-C St52 DIN1629/3 St52.4 DIN1629/4 5) 37Mn5 J55 Note 1)Packing Paint on the pipe and plastic covers at the ends 2)Paymnet T/T or L/C 3)Use Place Structure ,Transport gas and oil ,making machine part and so on
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