Stainless steel capillary tube structure

1, martensitic stainless steel. High strength, but plasticity and weldability is poor.


2, ferritic stainless steel. Contains chromium 12% to 30%. Its corrosion resistance, toughness and weldability with the addition of chromium content and improve the chloride stress corrosion resistance is better than other varieties of stainless steel.


3, austenitic - ferritic duplex stainless steel. Combines the advantages of austenitic and ferritic stainless steel, and has superplasticity.


4, austenitic stainless steel. Contains more than 18% chromium, also contains about 8% nickel and a few molybdenum, titanium, nitrogen and other elements. Comprehensive function is good, can be resistant to a variety of media corrosion.