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 Fe% Ni% Cr% Mo% N% C% Mn% Si% S% P% Cu% W%
Super Duplex 32760 Bal. 6.0-8.0 24.0-26.0 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

*PREN=Cr%+3.3[Mo%]+16[N%] ≥ 40


Grade UNS ASTM Werkstoff
Super Duplex 32760 S32760 F55 1.4501

Physical Properties

Grade Density
Super Duplex 32760 7.8 g/cm3

Mechanical Properties

Form Tensile Strength Yield Strength σp0.2/MPa Elongation
Reduction% Brinell Hardness
Sheet/Plate Min 750 Mpa Min 550 Mpa Min 25% Min 55% Max 270
Bar Min 750 Mpa Min 550 Mpa Min 25% Max 290

Our Production Standard

Standard Bar Forging Sheet/Plate

Size Range

Super Duplex 32760 bar, rod, forging, plate, sheet are available.

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