409 Stainless Steel Sheet

409 stainless steel sheet

409 stainless steel is a stabilized ferritic stainless steel that features better oxidation resistance than carbon steel, is magnetic and can withstand high temperatures without scaling or deoxidization – these characteristics make it suitable for automotive exhaust systems and catalytic converter components.

EMT metal can also be found in other manufacturing applications where surface rust is not an issue and welding processes may also be used to join it together.

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409 stainless steel is an economical ferritic alloy with excellent corrosion-resistance at elevated temperatures, making it suitable for automotive exhaust systems and other industrial uses. 409 is often preferred over more costly high-strength options that offer greater oxidation and corrosion protection, due to its cost effectiveness.

SS409 stainless steel boasts good corrosion resistance and formability; however, it should not be used in environments that are highly corrosive. Grades 430 and 439 possess superior oxidation and corrosion resistance characteristics than grade 409. All three varieties fall under ferritic stainless steel classification as they contain high concentrations of chromium with minimal to moderate carbon contents.

Stainless steel with low corrosion risk is often preferred in industrial settings that need an economical alternative to coated metals or galvanized metals, and requires an affordable corrosion-resistant option. It has good strength-to-weight ratio, is easy to fabricate and weld, and is resistant to thermal shock cracking.

Kloeckner Metals offers an expansive selection of stainless steel products, with grades that offer outstanding corrosion resistance. These materials come in sheet, coil, bar and tubular forms for use across a range of industries including construction, transportation and food processing; conventional welding methods may be used when joining together these materials while standard tooling may also be utilized to machine these materials.

Another advantage of these grades is their resistance to heat and humidity, making them suitable for applications including air conditioning, water treatment and industrial equipment as well as building construction or sanitary ware.

Like other ferritic stainless steels, SS409 is magnetic and offers an elevated temperature service range. With superior corrosion and oxidation resistance and easy fabrication capabilities, it makes an excellent choice for automotive exhaust systems. Furthermore, its durable malleability at low weld temperatures enables it to bend, shape and stretch into complex forms without losing ductility – key characteristics used mainly in exhaust systems but also found in catalytic converters and automobile mufflers.


Stainless steel is an excellent material to use in various applications, due to its resistance to corrosion under any conditions and malleability. It can easily be formed into various shapes and sizes while being durable enough to withstand high levels of stress in industrial settings. There are various grades of stainless steel available; one such ferritic stainless grade 409 is particularly versatile and widely utilized due to its cost-effectiveness as well as resistance against normal stress and heat levels.

Alloy 409 is a general purpose low nickel, chromium-stabilized ferritic stainless steel that offers both excellent elevated temperature corrosion protection and medium strength. With good formability and machinability characteristics, Alloy 409 is often preferred over its visual appearance counterparts when considering applications where visual appearance is not paramount. Sheet, strip, bar and tubular grades of Alloy 409 are readily available.

Automobile exhaust systems and industrial equipment where gas corrosion durability is of prime concern often feature this grade of material. Furthermore, exhaust silencers and catalytic converters manufactured using this grade should also not be exposed to environments with severe corrosion conditions. This grade should only be used where recommended by an environmental inspector.

This grade offers reduced corrosion protection compared to grades 430 and 439, but still provides adequate oxidation protection. It makes an economical alternative to carbon steel in applications requiring greater corrosion protection than can be provided by coated carbon steel; additionally it may even prove more cost effective than galvanized carbon steel for certain uses.

Stainless Steel 409 is an increasingly popular material choice for automotive exhaust systems due to its resistance to gas corrosion and ability to withstand high temperatures. Furthermore, this alloy makes an excellent material for muffler construction due to its greater heat tolerance than other options like 304 and 316 stainless steels – providing car owners with additional protection from potential damage caused by corrosion of their exhaust systems.


Stainless steel is widely known for its durability, strength-to-weight ratio, resistance to corrosion and versatility – qualities which have earned it widespread use across an array of applications. One popular grade of stainless steel used widely today is SS 409 which stands out due to being inexpensive yet resistant to corrosion, oxidation and mild heat; making it simple and straightforward for molding into different forms.

SS 409 is a titanium stabilized ferritic stainless steel with moderate oxidation and corrosion protection, boasting low concentrations of chromium and nickel that make it more cost-effective than competing grades. Additionally, its formability and ductility allow easy welding. We advise preheating before welding for improved ductility and resistance to stress corrosion cracking.

This grade of stainless steel can be found in exhaust systems, industrial equipment and automotive components, among many other uses. Additionally, its corrosion-resistance makes it perfect for acidic solutions as well as heat. Furthermore, its tolerance against stress and fatigue surpasses that of other grades of stainless steel making it the go-to material in demanding industrial settings.

Like other grades of stainless steel, SS 409 features a BCC (body-centered cubic) microstructure. Although not as similar to carbon steels as FCC (face-centered cubic) grades, SS 409 still provides outstanding toughness and hardness characteristics that outshone FCC grades in most situations. Although not recommended for severe corrosion environments, it will usually perform better than carbon steel in many circumstances.

Silver Steels offers competitively-priced SS 409 sheet, coil, and bar in India, UAE, UK, Malaysia, Singapore, Indonesia, Thailand South Africa Saudi Arabia Brazil Sri Lanka. Get in touch today to find out more information!


Stainless steel comes in many forms, from sheet and plate through tube, wire rod and fasteners. Its main characteristics are corrosion resistance and strength, fabrication ease and cost effectiveness for various applications such as construction. Furthermore, stainless steel can be found used in marine equipment, medical devices and more – it even finds use in construction! However, not all types of stainless steel are created equal and using one may affect the quality of your finished product depending on which variety is chosen – the right material choice depends on your project needs and application.

SS 409 is a titanium stabilized ferritic general purpose stainless steel designed to withstand exhaust gas and atmospheric corrosion at elevated temperatures, making it suitable for automotive exhaust systems where performance over visual appeal is of greater concern. Furthermore, this material features high resistance to oxidation as well as excellent welding properties – two features that make SS 409 an excellent choice when manufacturing car exhaust parts such as mufflers or catalytic converters.

High tensile strength stainless steel offers high temperature environments. Welding techniques such as arc welding can easily weld it together while resistance spot and seam welding also works well with this material, making it an economical and attractive alternative to more expensive grades of stainless steel.

SS 409 stainless steel is often utilized in automotive exhaust systems due to its ability to withstand high temperatures, making it suitable for non-visible components that don’t draw attention. Furthermore, its gas corrosion resistance makes it popular choice among truck exhaust systems as well as agricultural equipment manufacturers. Furthermore, it serves well in exhaust silencers of power generation plants as well as heat and gas turbines; furthermore it makes a good material choice for oil refineries and chemical plants with prices fluctuating according to demand; nevertheless it remains an economical solution.

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