AISI 430 – An Overview

AISI 430 is a ferritic stainless steel that is known for its corrosion resistance and thermal conductivity. It is commonly used in a variety of applications, including kitchen appliances, automotive parts, and architectural structures.

Chemical Composition

The chemical composition of AISI 430 includes 17% chromium, 0.12% carbon, 0.75% manganese, and 1% silicon. It is also notable for its low nickel content, which makes it less expensive than other stainless steel grades.

Corrosion Resistance

One of the most important features of AISI 430 is its corrosion resistance. The presence of chromium in the steel forms a protective oxide layer on the surface, which prevents rust and other types of corrosion. This makes it highly suitable for use in harsh environments where corrosion is a major concern.

Heat Resistance

AISI 430 is known for its good thermal conductivity, which makes it ideal for use in high-temperature applications such as automotive exhaust systems and industrial boilers. It can withstand temperatures up to 450°C without losing its structural integrity.


Another important feature of AISI 430 is its ease of machinability. It can be easily formed and shaped into different products using various techniques such as welding, forging, and stamping. This makes it a popular choice for a variety of industrial and architectural applications.


AISI 430 is commonly used in a variety of applications, including kitchen appliances such as ovens, refrigerators, and dishwashers, as well as automotive parts including exhaust systems and trim. It is also used in architectural structures, such as building facades, doors, and windows.


AISI 430 is a versatile and reliable ferritic stainless steel that is known for its corrosion resistance, thermal conductivity, and machinability. It is commonly used in a variety of applications due to its affordability and performance. With its excellent properties, AISI 430 is a great choice for anyone looking for an effective and economical stainless steel grade.

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