Super - austenitic

Highly alloyed iron-nickel-chromium stainless steels containing molybdenum have been developed to respond to severe corrosion specifications.

Superaustenitic stainless steels exhibit great resistance to chloride pitting and crevice corrosion because of high molybdenum content (>6%) and nitrogen additions, and the higher nickel content ensures better resistance to stress-corrosion cracking versus the 300 series. These steels approach the performance of highly corrosion resistant nickel based alloys at a significant lower cost.

Super-austenitic steels are amagnetic and present a good weldability and excellent formability.

Superaustenitic grades are used for pulp&paper, fertiliser, waste water treatment, FGD and chemical applications.

INDUSTEEL TRADEMARKS
UNS
ASTM
EURONORMS EN
SUS
UR™ 66 (Prev. UR™ B66) S31266 - 1.4659
X1CrNiMoCuNW24-22-6
-
UR™ 31 N08031 - 1.4562
X1NiCrMoCu32-28-7
-
UR™ 4565 (Prev. UR™ B46) S34565 - 1.4565
X2CrNiMnMoN25-18-6-5
-
UR™ 64 (Prev. UR™ B64) - - 1.3964
-
-
UR™ 926 (Prev. UR™ B26) N08926 - 1.4529
X1NiCrMoCu25-20-7
-
UR™ 367 N08367 - -
-
UR™ 254 (Prev. UR™ B25) S31254 - 1.4547
X1CrNiMoCuN20-18-7
-
UR™ 28 (Prev. UR™ B28) N08028 - 1.4563
X1NiCrMoCu31-27-4
-
UR™ 904L (Prev. UR™ B6) N08904 904L 1.4539
X1NiCrMoCu25-20-5
SUS 317J5L