Super austenitic stainless steel

Super austenitic stainless steel

When the pitting resistance equivalent value of chromium-nickel austenitic stainless steel (PREN=[Cr]+3.3[Mo]+16[N]) ≥40%, it can be called super austenitic stainless steel. Super austenitic stainless steel is mainly used to solve the problems of pitting corrosion and crevice corrosion resistance of the original high molybdenum (>4%) chromium-nickel austenitic stainless steel under the severe corrosion conditions containing Cl- and poor thermal stability of the structure. And developed.

Super austenitic stainless steel Main grades: N08904 (904L), N08367 (6Mo), S31254 (6Mo), S30432, S31042

 

Super austenitic stainless steel Main criteria (partial):

ASTM A312 Seamless and Welded Austenitic Stainless Steel Tube

ASTM A269 Seamless and welded austenitic stainless steel tubes for general equipment

ASTM B673, ASTM B674, ASTM B677, ASTM B675, ASTM B676, ASTM B690

 

Super austenitic stainless steel Performance characteristics:

1. Excellent resistance to pitting and crevice corrosion in harsh corrosive environments

2. Excellent mechanical properties and high yield strength

3. Good processability