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Fuel cells are an emerging technology
to produce electricity efficiently and
cleanly from conventional and
unconventional fuels, including pure
hydrogen. Considerable effort is being
expended to commercialize fuel cells
in numerous areas, including
centralized and distributed
electricity generation, portable
power / battery replacement, and
motive and auxiliary power for
automotive and mass transit
applications. There are several
different types of fuel cells which
operate under conditions ranging from
ambient temperatures and pressures to
temperatures as high as 2000°F under
high pressures. The result is a set of
unique challenges for materials
selection, as critical components in a
fuel cell are often required to serve
structural and electrical functions
simultaneously.
ATI Allegheny Ludlum is a recognized
center of excellence in the field of
fuel cell materials.
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Click to Download: E-BRITE® Blue Sheet
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| Product Line |
Description |
Alloys |
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| Nickel Alloy |
Nickel alloys find applications in both low and high temperature fuel cells for their resistance to aqueous corrosion, molten salt corrosion, high temperature oxidation, and excellent strength and creep resistance at elevated temperatures. Common applications are bipolar plates/current collectors and balance of plant components such as high temperature fuel reformers, containment structures, and heat exchangers.
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AL 200™ / AL 201™
AL 22™
AL 400™
AL 600™
AL 601™
AL800™/AL800H™/AL800AT™
ALTEMP® 625
ALTEMP® HX
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| Stainless Steel |
The combination of strength, corrosion resistance, manufacturability, and wide commercial availability exhibited by stainless steels result in their application in most types of fuel cells. Ferritic stainless steels are often specified for solid oxide fuel cell (SOFC) interconnects due to a unique combination of oxidation resistance and thermal compatibility with the brittle ceramic components which make up the active region of the SOFC. Austenitic stainless steels find application as bipolar plates in PEM fuel cells, where high corrosion resistance and surface conductivity are required, and in molten carbonate fuel cells (MCFC), where resistance to attack by molten salts is needed.
The basic properties of austenitic stainless steels also make them useful for balance of plant applications. |
304 / 304L
309 / 309S
310 / 310S
316 / 316L
317 / 317L
347
430
439/AL 439 HP™
AL 441HP™
AL 904L™
AL-6XN Plus™
AL-6XN®
AL 29-4C®
E-BRITE ®
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| Titanium |
ATI Allegheny Ludlum offers titanium and titanium alloys offer excellent corrosion resistance and high strength. Titanium is used for the most demanding low-temperature fuel cell applications, where maximum corrosion resistance is required.
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Grade 1
Grade 2
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