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6% Moly Alloys

AL-6XN, 254 SMO, & 904L

6% Moly Alloys Available at Mega Mex

Mega Mex supplies AL-6XN, 254SMO and 904L. However, AL-6XN generally outperforms the other 6 Moly Alloys when it comes to pitting resistance and is more readily available.

6 Moly Overview6 Moly Alloy Pipe- AL6XN

6-Moly alloys are named for their 6% Molybdenum content. They are highly resistant to corrosion and stress cracking and are up to 50% stronger than conventional stainless steels. Enhanced levels of two key elements, chromium and molybdenum, plus the addition of nitrogen give these alloys greatly improved pitting and crevice corrosion resistance in chlorides. Therefore making 6 Moly Alloys well suited for high chloride environments such as brackish water, seawater, pulp mill bleach plants and other high chloride process streams.

What are the characteristics of 6 Moly Alloys?

  • Highly resistant to pitting, crevice and general corrosion.
  • Very high resistance to chloride stress corrosion cracking
  • 50% stronger than 300-series austenitic stainless steels
  • Excellent impact toughness
  • Excellent workability and wedablilty

In what applications is AL-6XN used?

  • Seawater handling equipment
  • Pulp mill bleach systems
  • Chemical processing equipment
  • Food processing equipment
  • Desalination equipment
  • Flue gas desulphurization scrubbers

AL-6XN Nominal Composition

Ni

Cr

Mo

Cu

N

24

20.5

6.3

0.1

0.22

254 SMO Nominal Composition

Ni

Cr

Mo

Cu

N

18

20

6.1

0.7

0.2

904L Nominal Composition

Ni

Cr

Mo

Cu

N

25

21

4.5

1.6

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* AL-6XN® is a registered trademark of the Allegheny Ludlum Corporation