AK Steel 409 ULTRA FORM® Stainless Steel

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AK Steel 409 ULTRA FORM® Stainless Steel
Categories:	Metal; Ferrous Metal; Stainless Steel
Material Notes:	AK Steel 409 ULTRA FORM Stainless Steel provides an outstanding combination of improved forming and welding characteristics, while providing superior resistance to oxidation, corrosion, ridging and roping in both automotive exhaust and non-exhaust applications. These benefits are achieved through precise control of chemistry and thermo-mechanical processing from melting to finishing. AK Steel 409 ULTRA FORM is essentially non-hardenable by heat treatment because of its titanium and low-carbon levels. The titanium additions not only stabilize the steel to prevent hardening during welding, but also prevent the formation of harmful chromium carbides which can lead to intergranular corrosion in service. Available Forms AK Steel produces 409 ULTRA FORM Stainless Steel coils and cut lengths in thicknesses of 0.015" to 0.250" (0.381 to 6.350 mm) in widths up to and including 48" (1219 mm). For applications over 0.120" (3.048mm) thick, AK Steel 409 Ni Stainless Steel will provide improved toughness and weldability. The surface finish of the alloy is obtained by annealing and pickling after rolling. The pickled surface is relatively dull and, like other titanium-stabilized stainless steels, may have cosmetic titanium streaks and will appear similar to typical Type 409. Information provided by AK Steel.
Key Words:	UNS S40920
Vendors:

Available Properties

Density
Hardness, Rockwell B, Annealed
Hardness, Rockwell B, 5% Cold Worked
Hardness, Rockwell B, 10% Cold Worked
Hardness, Rockwell B, 50% Cold Worked
Hardness, Rockwell B, 15% Cold Worked
Hardness, Rockwell B, 30% Cold Worked
Hardness, Rockwell B, Annealed, Transverse Orientation
Tensile Strength, Ultimate, 5% Cold Worked
Tensile Strength, Ultimate, 10% Cold Worked
Tensile Strength, Ultimate, 15% Cold Worked
Tensile Strength, Ultimate, 30% Cold Worked
Tensile Strength, Ultimate, 50% Cold Worked
Tensile Strength, Ultimate
Tensile Strength, Ultimate
Tensile Strength, Ultimate
Tensile Strength, Ultimate
Tensile Strength, Ultimate
Tensile Strength, Ultimate
Tensile Strength, Ultimate
Tensile Strength, Ultimate, Annealed, Transverse Orientation
Tensile Strength, Yield, Annealed, Transverse Orientation, 0.05"-0.085"
Tensile Strength, Yield, 5% Cold Worked
Tensile Strength, Yield, 10% Cold Worked
Tensile Strength, Yield, 15% Cold Worked
Tensile Strength, Yield, 30% Cold Worked
Tensile Strength, Yield, 50% Cold Worked
Tensile Strength, Yield
Tensile Strength, Yield
Tensile Strength, Yield
Tensile Strength, Yield
Tensile Strength, Yield
Tensile Strength, Yield
Tensile Strength, Yield
Elongation at Break, 50% Cold Worked, in 2"
Elongation at Break, 30% Cold Worked, in 2"
Elongation at Break, 15% Cold Worked, in 2"
Elongation at Break, 10% Cold Worked, in 2"
Elongation at Break, 5% Cold Worked, in 2"
Elongation at Break, Annealed, in 2"
Elongation at Break, Annealed, Transverse Orientation
Tensile Modulus
Fatigue Strength, r=0.1
Fatigue Strength, r=0.1
Electrical Resistivity
Carbon, C, Ti, min. = 8X(C+N)
Chromium, Cr
Iron, Fe, as balance
Manganese, Mn
Nickel, Ni
Phosphorus, P
Silicon, Si
Sulfur, S

Property Data

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