Allegheny Ludlum - Leading producer of stainless steel and other specialty materials
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Water, Seawater, Desalination & Marine - Desalination

Materials used in desalination must resist environments that include brackish water or seawater, potable water and brine discharge. The ATI Allegheny Ludlum products most commonly used in desalination are 316L, AL 2205™, AL-6XN®, AL 4565™, AL 29-4C®, and SEA-CURE®. In seawater reverse osmosis plants and portable units, materials such as AL- 6XN® stainless steel have been used for pipes, connectors, valves, nozzles, and fittings. For multi-stage flash plants and multi-effect distillation plants, superferritic and duplex stainless steels have found use in heat recovery shells, support plates, heat exchanger tube bundles and plates, steam ejectors and ejector tubing, and de-mister supports. AL 29- 4C®, SEA-CURE®, and AL 4565™ alloys are cost-effective alternatives to titanium in MSF condensers. AL 2003™ lean duplex alloy should be considered for use in several of these applications as a cost-effective replacement for Type 316L or AL 2205™ stainless steels.
technical data  Click to Download: High Performance Metals
SEA-CURE® is a registered trademark of Plymouth Tube Company
Product Line Description Alloys
Nickel Alloy The very high corrosion resistance of AL 276™ alloy makes it suitable for use in the more aggressive environments encountered in the desalination process. AL 276™

Stainless Steel Several different types of stainless steels are used in the desalination process. The choice of alloy will depend on the corrosivity and temperature of the water that is in contact with the stainless steel. 316 / 316L
317 / 317L
AL 2003™
AL 2205™
AL 4565™
AL 904L™
AL-6XN®
AL 29-4C®



 

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