EN 1.4460/AISI 329/F52/SUS329J1/UNS S32900 Stainless Steel

EN 1.4460/AISI 329/F52/UNS S32900 is a duplex (austenitic-ferritic) stainless steel characterized by resistance to stress corrosion cracking (SCC), high resistance to pitting, crevice, and general corrosion, and very high mechanical strength. It can be used in marine applications for hydraulic cylinders or anywhere where good corrosion resistance is needed. It provides very good resistance to corrosion, particularly in a chloride-bearing environment. And it gives extra resistance to stress corrosion, pitting corrosion, and fatigue corrosion.

Chemical Composition

The following table shows the chemical composition of grade 329 stainless steel:

C Si Mn P S Cr Ni Mo
0.04 0.5 0.8 ≤0.040 ≤0.030 26 5 1.3

Mechanical Properties:

The mechanical properties of annealed AISI 329 stainless steel are displayed in the following table:

Proof strength

Tensile strength



Rp1.0 Rm



ksi MPa ksi MPa ksi



≥70 ≥470 ≥68 620-800 90-116


1 MPa = 1 N/mm2
a) Rp0.2 and Rp1.0 correspond to 0.2% offset and 1.0% offset yield strength, respectively.
b) Based on L0 = 5.65 √S0 where L0 is the original gauge length and S0 is the original cross-section area.

c) Requirement according to ASTM A790
d) Requirement according to EN 10297-2

Available Product form:

Pipe, Tube: ASTM A268, ASTM A789, ASTM A790, ASTM A511, ASME SA268

Plate, Sheet, Coil: ASTM A240

Bar: ASTM A479

Find us with these keywords: UNS S32900, ASME SA268, ASTM A268, ASTM A511, SS 14 2324, SIS 14 2324, 453S, ASTM A 240, A240