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Allegheny Ludlum AL 433™ Ferritic Stainless Steel, Annealed

 

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

Material Notes:
Iron content above calculated as balance.

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 resistancein 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.

Available Properties
  • Density
  • Hardness, Rockwell B
  • Tensile Strength, Ultimate
  • Tensile Strength, Ultimate at Elevated Temperature
  • Tensile Strength, Yield
  • Tensile Strength, Yield at Elevated Temperature
  • Elongation at Break
  • Modulus of Elasticity
  • CTE, linear 20°C
  • CTE, linear 250°C
  • CTE, linear 500°C
  • Specific Heat Capacity
  • Thermal Conductivity
   
Property Data

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