PRODUCTS

Super Austenitic Stainless Steel

When the pitting resistance equivalent number (PREN = [Cr] + 3.3[Mo] + 16[N]) of chromium-nickel austenitic stainless steel is ≥ 40%, it can be referred to as super austenitic stainless steel. Super austenitic stainless steel was developed mainly to address the shortcomings of existing high molybdenum ( > 4%) chromium-nickel austenitic stainless steel in terms of pitting resistance, crevice corrosion resistance, and poor thermal stability under harsh corrosive conditions containing Cl-.

Material

UNS N08904 (904L)

UNS N08367 (6Mo)

S31254 (6Mo)

Executive standard

GB/T 13296

GB/T 14976

ASTM A312

ASTM A269

ASTM A789

ASME SA213

ASME SA790