General Description

UNS S32050 is a super austenitic stainless steel with 6% Moly, with high nickel and chromium contents.

S32050 has extremely high pitting resistance and crevice corrosion resistance in high concentration chloride environments, it also possesses excellent stress corrosion cracking (SCC) resistance.

Chemical Composition

Grade Fe% Ni% Cr% Mo% Cu% C% Mn% Si% S% P% N%
S32050 Bal. 20.0-23.0 22.0-24.0 6.0-6.8 Max 0.40 Max 0.03 Max 1.5 Max 1.0 Max 0.02 Max 0.035 0.21-0.32


UNS S32050

NAS 224N


S32050 Bar: ASTM A479

S32050 Forging: ASTM A484

S32050 Sheet/Plate: ASTM A240

S32050 Pipe/Tube: ASTM A312

Physical Properties

Density:8.0 g/cm3

Melting Point: 1350℃

Mechanical Properties

Solution Annealed

Tensile: Min 675 MPa

Yield Rp0.2: Min 330 MPa

Elongation A5: Min 40%

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