1. The small-diameter 304 stainless steel welded pipe is produced continuously on-line. The thicker the wall thickness, the greater the investment in the unit and welding equipment, and the less economical and practical it is. The thinner the wall thickness, its input-output ratio will decrease accordingly;
2. The process of the product determines its advantages and disadvantages. Generally, 304 stainless steel welded pipes have high precision, uniform wall thickness, high brightness inside and outside the pipe (the surface brightness of the steel pipe is determined by the surface grade of the steel plate), and can be arbitrarily scaled. Therefore, it embodies its economy and aesthetics in high-precision, medium- and low-pressure fluid applications.
GB/T12770-2002 (
stainless steel welded steel pipes for mechanical structures). Mainly used in machinery, automobiles, bicycles, furniture, hotel and restaurant decoration and other mechanical parts and structural parts. Its representative materials are 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, etc.
GB/T12771-2008 (stainless steel welded steel pipes for fluid transportation). It is mainly used for conveying low-pressure corrosive media. Representative materials are 06Cr19Ni10, 022Cr19Ni10, 06Cr19Ni110Ti, 00Cr17, 0Cr18Ni11Nb, 06Cr17Ni12Mo2, etc.