Austenitic / ferritic stainless steel tube oxidation resistance, excellent resistance to stress corrosion

- Feb 08, 2018-


Ferrite stainless steel (400 series) containing 15% to 30% chromium content, with a body-centered cubic crystal structure.(welding overlay,flange,pipe spooling)


Such steel generally does not contain nickel, and sometimes also contains a small amount of Mo, Ti, Nb and other elements, such steel has a large thermal conductivity, small expansion coefficient, good oxidation resistance, excellent resistance to stress corrosion and other characteristics, and more for the manufacture of atmospheric resistance , Water vapor, water and oxidizing acid corrosion parts. Not only is the price of ferritic stainless steels not only relatively low and stable, but they also have many unique features and advantages. Ferritic stainless steels have proven to be extremely useful in many applications where it was originally thought possible to use only austenitic stainless steels (Series 300) Excellent alternative materials, ferritic stainless steel is nickel-free, the main elements of chromium (> 10%) and iron, chromium is a particularly corrosion-resistant stainless steel elements.(welding overlay,flange,pipe spooling)

 

In the use of ferritic-based stainless steel. Chromium content of 15% to 30%, with body-centered cubic crystal structure. Such steel generally does not contain nickel, and sometimes also contains a small amount of Mo, Ti, Nb and other elements, such steel has a large thermal conductivity, small expansion coefficient, good oxidation resistance, excellent resistance to stress corrosion and other characteristics, and more for the manufacture of atmospheric resistance , Water vapor, water and oxidizing acid corrosion parts. The existence of such poor plasticity, plastic and corrosion resistance after welding significantly reduced the shortcomings, thus limiting its application. The application of furnace refining technology (AOD or VOD) can greatly reduce the gap elements such as carbon and nitrogen, thus making this type of steel widely used.

 

Ferrite stainless steel "magnetic" is not a negative quality, I do not know why the "magnetic" and ordinary steel together, in fact, on the contrary, magnetic is a special performance of these excellent stainless steel, making them different from other stainless steel .(welding overlay,flange,pipe spooling)