Super Duplex F55

General properties

SUPER DUPLEX F55
UNS 32760 / W-Nr. 1.4501
Super Duplex F55 / UNS 32760 / W-Nr. 1.4501
Super Duplex from alloy F55 (UNS S32760 and W-Nr. 1.4501 have a very good corrosion resistance especially in salt see water and in other Chlorides environments.

F55 Have a better resistance than ordinary stainless steel
F55 standard NACE MR 01 75 used for pressure vessels.

The most typical applications are in chemical industry and equipments, helix, pumps, shafts, screws, and fastening elements for marine applications and oil and gas applications, valve in paper industry and depuration of used water.

F55 (UNS 32760) it is delivered normally annealed. For cold environments we can supply material which can satisfy the grade of FLT ( impact Charpy tested at -101 ° C) F55 or grade FG (impact Charpy tested at -46 ° C).

Proprietati mecanice:
Rezistenta la rupere (MPa /N/mm2) [ksi] minimum < 90 mm dia – 800 (116) > 90 mm dia (750 (109)
FLT & FG – 860 (125)
0.2%Tensiune de incercare (MPa /N/mm2 ) [ksi] minimum 550 [79.9)
FLT & FG – 725 (105)
Elongatia (%) minimum 25
FLT & FG – 16
Gatuire (%) minimum 50
FLT & FG – 50
Duritate (HBN) 270 max
Charpy V-grad de impact la temperatura mediuluii de (J) 80 minimum
FG –testul Charpy V- Impact la-46°C (J) 35 individual min, 45 medie min
FLT – testul Charpy V- Impact la -101°C (J) 35 individual min, 45 medie min
ASTM G48A Test de coroziune la 50°C Fara coroziune in puncte si pierdere de grutate< 0.8g/m2
TestateUltrasonic conform ASTM A388
Continut de Ferita 35%-55%
Densitate(Kg/m-3) 7810
Permeabilitate magnetica 33
Modulul Young(N/mm2) 199 x 10³
Caldura specifica, 20°C (J/Kg-1.°K-1) 475
Rezistenta electrica specifica, 20°C (µO.m) 0.80
Conductivitate termica, 20°C (W/m-1)°K-1 14.2
Coeficientul de expansiune termica, 20-100°C (°K-1) 11.1 x 10-6

Dimensiuni (mm)