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

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.

Key Features:

• The thermal expansion coefficient (TEC) at 20C to 815C (68F to 1500F) is 14.4µm/mC (8 µin/inF).
• Slightly lower alloy content as compared to Grade 2205.
• Parts and components must be solutions annealed at around 1020C to 1100C (1870F to 2010F) and then must be quenched in water.

Chemical Composition of S32900 Stainless Steel Pipe

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

Mechanical Properties of S32900 Stainless Steel Pipe

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

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

Applications:

• Off-shore technology.
• Paper industry.
• Chemical tanks.
• Heat exchangers.
• Refineries.
• Flanges, fittings, and pipes for the oil and gas industries.
• Compressor parts.
• Marine shafts for pressure vessel parts.
• Desalination plants at seawater.

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