ATI Allegheny Ludlum AL 433™ Ferritic Stainless Steel, Annealed

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ATI Allegheny Ludlum AL 433™ Ferritic Stainless Steel, Annealed
Categories:	Metal; Ferrous Metal; Stainless Steel; T 400 Series Stainless Steel
Material Notes:	AL 433™ is a stainless steel in the ferritic family of alloys with Type 409 and Type 439. The AL 433 alloy contains 20% chromium for pitting and crevice corrosion resistance in the presence of chlorides and resistance to oxidation at elevated temperatures. An addition of 0.5% copper adds to corrosion resistance. Columbium (niobium) in the amount of about 0.5% is added for elevated temperature strength and also provides resistance to intergranular corrosion. The AL 433 alloy has a body-centered cubic, ferritic microstructure at all temperatures below the melting point. Fine columbium carbides may be visible in the ferrite matrix microstructure. The AL 433 alloy can be machined, welded and formed like other stabilized, ferritic stainless steels. AL 433 alloy is an excellent candidate for elevated temperature applications where strength, combined with fabricability are needed. Information provided by Allegheny Ludlum Corporation.
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Available Properties

Density
Hardness, Rockwell B, typical
Tensile Strength, Ultimate, typical
Tensile Strength, Ultimate, typical
Tensile Strength, Ultimate
Tensile Strength, Yield, typical
Tensile Strength, Yield
Tensile Strength, Yield, typical
Elongation at Break, typical in 2" (50 mm)
Modulus of Elasticity
CTE, linear
CTE, linear
CTE, linear
CTE, linear
Specific Heat Capacity
Thermal Conductivity
Carbon, C
Chromium, Cr
Copper, Cu
Iron, Fe, as balance
Manganese, Mn
Nickel, Ni
Niobium, Nb (Columbium, Cb)
Nitrogen, N
Phosphorus, P
Silicon, Si
Sulfur, S

Property Data

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Manufacturer Notes:
ATI Allegheny Ludlum, Allegheny Technologies Incorporated

Category Notes
none

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