General Description
Super Duplex S32760 is a ferritic-austenitic stainless steel, with excellent corrosion resistance against general corrosion, stress corrosion cracking, corrosion fatigue, pitting, crevice and erosion corrosion and possessing very high mechanical strength properties. Compared with nickel based alloys, UNS S32760 has lower and much stable price.
F55 is used in equipment for the oil & gas industry, on offshore platforms, in heat exchangers, chemical processing, pressure vessels and boilers as well as in the petrochemical industry and desalination plants, including seawater piping.
It can be made into components such as heat exchangers, separator parts, compressor and pump components, turbine blades.
Chemical Composition
| Grade | Ni% | Cr% | Fe% | Mo% | N% | C% | Mn% | Si% | S% | P% | Cu% | W% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F55 | 6.0-8.0 | 24.0-26.0 | Bal. | 3.0-4.0 | 0.2-0.3 | Max 0.03 | Max 1.0 | Max 1.0 | Max 0.01 | Max 0.03 | 0.5-1.0 | 0.5-1.0 |
Designations
UNS S32760
ASTM F55
Werkstoff Nr. 1.4501
Specifications
F55 Wire/Bar/Forging: ASTM A276/A479
F55 Sheet/Plate: ASTM A240
Physical Properties
Density：7.8 g/cm3
Mechanical Properties
Solution Annealed
Tensile: Min 750 MPa
Yield: Min 550 MPa
Elongation: Min 25%