ATI Allegheny Ludlum Type 441 Alloy Stainless Steel

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ATI Allegheny Ludlum Type 441 Alloy Stainless Steel
Categories:	Metal; Ferrous Metal; Stainless Steel; T 400 Series Stainless Steel
Material Notes:	Allegheny Ludlum stainless Type 441 alloy is a heat resisting ferritic grades 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. Type 441 alloy has very good resistance to progressive scaling in both continuous and cyclic oxidizing laboratory test environments. Type 441 is weldable using traditional tungsten inert gas and metal arc inert gas procedures commonly used with stainless steel. When a filler wire is required, a matching Type 441 chemistry electrode can be used with the alloy to maintain compatible corrosion and oxidation resistance in the weld area. It is suggested that hydrogen not be mixed with inert gas (unless post weld annealing is planned) because ferritic stainless steels are subject to hydrogen embrittlement. 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
CTE, linear
CTE, linear
CTE, linear
CTE, linear
CTE, linear
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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