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Allegheny Ludlum Stainless Steel Type 441 Alloy

 

Subcategory: T 400 Series Stainless Steel; Stainless Steel; Metal

Material Notes:
Iron content above calculated as balance.

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 ferritc stainless steels are subject to hydrogen embrittlement.

Information provided by Allegheny Ludlum Corporation.

Available Properties
  • Density
  • Hardness, Rockwell B
  • Tensile Strength, Ultimate
  • Tensile Strength, Yield
  • Elongation at Break
  • Electrical Resistivity
  • CTE, linear 20°C
  • CTE, linear 250°C
  • CTE, linear 500°C
  • CTE, linear 1000°C
  • Maximum Service Temperature, Air
   
Property Data

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