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Stainless steel grade 439 is capable of being made into complex shapes such as tubular manifolds and exhaust system components, where temperatures tend to go beyond the oxidation limit of grade 409 steel. It is also preferred where wet corrosion resistance especially to chlorides is needed. Stainless steel grade 439 has good weldability, brightness, and pitting corrosion resistance. It polishes well, and is good for deep drawing.

SS439 is a ferritic stainless steel known for its good weldability, oxidation, and corrosion resistance, particularly to chlorides. It is often used as a replacement for Type 409 in automotive exhaust systems due to its improved performance and is also suitable for heat exchangers, kitchen equipment, and architectural structures.

Key features and properties of SS439:

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  Stabilized with Titanium : This addition enhances weldability and reduces the risk of intergranular corrosion.

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  Good Weldability : It can be readily welded without the need for post-weld annealing to restore ductility or prevent intergranular corrosion.

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  Excellent Corrosion Resistance : Especially effective in resisting chloride-induced corrosion, making it suitable for various applications where wet corrosion is a concern.

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  High Thermal Conductivity : This makes it a good choice for heat transfer applications.

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  Low Coefficient of Expansion : Helps to minimize thermal stress and distortion in applications with temperature fluctuations.

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  Good Formability : Can be formed into complex shapes, making it suitable for tubular manifolds and exhaust system components.

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  Applications : Common uses include automotive exhaust systems, heat exchangers, kitchen equipment, and architectural structures.

Metal Supply Centre Is Major Stoackist In Stainless steel grade 436L is ferritic steel that has excellent oxidation resistance and corrosion testing compared to grade 409. ss436LThe addition of molybdenum in this alloy enhances pitting resistance. It is also resistant to stress corrosion cracking in the presence of chlorides, and has excellent formability SS436L. The following sections will discuss in detail about stainless steel grade 436L. Chemical Composition The chemical composition of stainless steel grade 436L is outlined in the following table. Element Content (%) Iron, Fe 80.49 Chromium, Cr 17.3 Molybdenum, Mo 1 Nickel, Ni 0.3 Manganese, Mn 0.3 Silicon, Si 0.3 Titanium, Ti 0.3 Carbon, C 0.01

Metal Supply Centre Is Major Stoackist In Stainless steel grade 436L is ferritic steel that has excellent oxidation resistance and corrosion testing compared to grade 409. ss436LThe addition of molybdenum in this alloy enhances pitting resistance. It is also resistant to stress corrosion cracking in the presence of chlorides, and has excellent formability SS436L. The following sections will discuss in detail about stainless steel grade 436L. Chemical Composition The chemical composition of stainless steel grade 436L is outlined in the following table. Element Content (%) Iron, Fe 80.49 Chromium, Cr 17.3 Molybdenum, Mo 1 Nickel, Ni 0.3 Manganese, Mn 0.3 Silicon, Si 0.3 Titanium, Ti 0.3 Carbon, C 0.01