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What are the uses of national standard stainless steel industrial welded pipe?

2020-01-10

The national standard stainless steel industrial welded pipes are mainly used in industry in two major categories, which are divided into: stainless steel welded steel pipes for fluid transportation and stainless steel welded steel pipes for structure. Let's see what are the differences between the two?

304 stainless steel industrial welded pipe

GB / T12771-2008 (stainless steel welded steel pipe for fluid transportation). Mainly used to transport low-pressure corrosive media. Tolerance of bending degree: tolerance of outer diameter> 17-140 is ≤2.0mm / m, tolerance of outer diameter> 140 is ≤2.5mm / m. Representative materials are 06Cr19Ni10, 022Cr19Ni10, 06Cr19Ni110Ti, 00Cr17, 0Cr18Ni11Nb, 06Cr17Ni12Mo2, etc.

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. Tolerance of bending degree: tolerance of outer diameter ≤16 is ≤1.0mm / m, tolerance of outer diameter> 16-159 is ≤1.5mm / m, tolerance of outer diameter> 159 is ≤2.0mm / m Its representative materials are 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb and so on.

The national standard stainless steel welded pipe is a basic pipe. In summary, the big difference between the two is the use and tolerance. Therefore, when choosing to purchase the national standard stainless steel welded pipe, you must also indicate the use.


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