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Seawater and marine environments can
be highly corrosive to standard
stainless steels such as Type 304.
Specialized alloys containing elevated
levels of chromium, molybdenum, and
nitrogen have been developed to
withstand these environments. In
general, materials having higher
concentrations of these elements will
have greater resistance to corrosion
by seawater.
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Click to Download: High Performance Metals
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SEA-CURE®
is a registered trademark of Plymouth Tube Company
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| Product Line |
Description |
Alloys |
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| Nickel Alloy |
Several of ATI Allegheny Ludlum's nickel alloys offer resistance to hostile offshore environments such as are found in seawater piping systems (e.g. fire protection), process piping systems, heat exchanger equipment, splash zones and support structures. |
AL 22™
AL 276™
AL 400™
AL 825™
ALLCORR®
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| Stainless Steel |
Corrosion resistance and strength are important considerations in the selection of stainless steels for marine applications. While Type 316 and AL 2003™ lean duplex stainless steel offer improved corrosion resistance compared to Type 304, alloys high in molybdenum, such as AL 29-4C®, SEA-CURE®, AL 904L™, AL 255™, AL-6XN® and AL 4565™, will perform even better. These alloys are commonly used in marine and offshore structures and in military and commercial ships. |
316 / 316L
317 / 317L
AL 2003™
AL 2205™
AL 4565™
AL 904L™
AL-6XN Plus™
AL-6XN®
AL 29-4C®
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| Titanium |
Titanium's corrosion resistance and weldability make it the material of choice for many marine and offshore applications. The ability for the designer to utilize thinner walls for enhanced heat transfer and titanium's resistance to fouling make it a very good long term solution. |
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