The production process of welded stainless steel pipe is simple, the production efficiency is high, the variety and specifications are large, and the equipment capital is small, but the compressive strength is generally lower than that of the stainless steel seamless pipe.
In recent years, with the rapid development of high-quality stainless steel strip continuous rolling production and the progress of stainless steel welding and inspection technology, the quality of welds has been continuously improved, and the variety and specifications of welded stainless steel pipes are increasing, and especially in more and more fields. It replaces stainless steel seamless steel pipes in terms of heat exchange spare pipes, decorative pipes, medium and low pressure fluid pipes, etc.
1. Small-caliber welded stainless steel pipes are continuously produced online. The thicker the wall, 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 this product determines its advantages and disadvantages. Generally, 304 stainless steel welded pipe has 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 the length can be arbitrarily determined. Therefore, it embodies its economy and aesthetics in high-precision, medium and low-pressure fluid applications.
Purpose: GB/T12770-2002 (stainless steel welded steel pipe for mechanical structure). 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 pipe for fluid transportation). Mainly used to transport low-pressure corrosive media. Representative materials are 06Cr19Ni10, 022Cr19Ni10, 06Cr19Ni110Ti, 00Cr17, 0Cr18Ni11Nb, 06Cr17Ni12Mo2, etc.