ATI Allegheny Ludlum Type AL 441HP™ Stainless Steel Alloy

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ATI Allegheny Ludlum Type AL 441HP™ Stainless Steel Alloy
Categories:	Metal; Ferrous Metal; Stainless Steel; T 400 Series Stainless Steel
Material Notes:	Allegheny Ludlum stainless Type AL 441HP™ alloy is a heat resisting ferritic grade providing good oxidation and corrosion resistance for applications like automotive exhaust system components. Dual stabilized with columbium and titanium to provide good weld ductility and resistance to intergranular corrosion in the weld heat affected zone. AL 441HP™ alloy has been developed for the severe tube bending and forming operations typical in automotive exhaust manifold fabrication. Tight control on carbon and nitrogen levels plus improved mill processing result in enhanced formability is terms of higher tube bending speeds and lower breakage or scrap rate. Information provided by Allegheny Ludlum Corporation.
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Available Properties

Density
Hardness, Rockwell B, typical
Tensile Strength, Ultimate, Typical
Tensile Strength, Yield, Typical
Elongation at Break, typical in 2" (50 mm)
Electrical Resistivity
CTE, linear, Type 441
CTE, linear, Type 441
CTE, linear
CTE, linear
CTE, linear
CTE, linear, Type 441
Maximum Service Temperature, Air, Continuous service
Aluminum, Al
Carbon, C
Chromium, Cr
Iron, Fe, as balance
Manganese, Mn
Nickel, Ni
Niobium, Nb (Columbium, Cb)
Nitrogen, N
Phosphorus, P
Silicon, Si
Sulfur, S
Titanium, Ti

Property Data

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Manufacturer Notes:
ATI Allegheny Ludlum, Allegheny Technologies Incorporated

Category Notes
none

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