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Duplex Stainless Steels 2205

Common Trade Names: AL-6XN Super Austenitic Stainless Steel. 

A high molybdenum superaustenitic with outstanding resistance to chloride pitting, crevice corrosion and stress corrosion cracking. Suitable for use in pulp mill bleach plants, seawater heat exchangers and chemical process equipment

Available Product Forms: 

Pipe, tube, fitting, flange, sheet, strip, plate, round bar, flat bar, fastener, forging stock, hexagon and wire


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Specifications

Duplex Stainless Steels is designated as UNS S31803, UNS S32205. It is listed in NACE MR-01-75 for oil and gas service.
 
UNS S31803, UNS S32205, Werkstoff 1.4462, EN 1.4462
ASTM: A 240, A 276, A 479, A 789, A 790, A 182 (Grade F51), A 923
ASME: SA-240, SA-479, SA-789, SA-790, SA-182 (Grade 51), ASME Pgroup 10H.
 
Trademark Notice: Some names are trade names and/or trademarks of specific manufacturers. American Special Metals, Corp. is not affiliated with any manufacturer(s). Orders will be filled to meet specifications from any available source(s). Names are listed solely for reference to help identify products consistent with listed specifications.

Chemical Composition

 

Ni

Cr

Mo

Mn

Si

C

N

S

P

Fe

MIN

4.5

22.0

3.0

-

-

-

0.14

-

-

-

MAX

6.5

23.0

3.5

2.0

1.0

0.03

0.2

0.02

0.03

Balance

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