ThePipingMart Blog Grades AISI 415 Stainless Steel (UNS S41500) – Composition, Properties and Uses

AISI 415 Stainless Steel (UNS S41500) – Composition, Properties and Uses

415 Stainless Steel

Stainless steel is an alloy of iron, carbon and chromium. It is widely used in manufacturing and engineering because of its resistance to corrosion and strength. There are many different grades of stainless steel, each with different properties that make them suitable for different applications. In this article, we will be taking a closer look at 415 stainless steel and exploring its composition, physical properties, mechanical properties, and uses.

AISI 415 Composition

AISI 415 Alloy Steel (UNS G41500) is composed primarily of iron (Fe), carbon (C), chromium (Cr), nickel (Ni) and manganese (Mn). Other trace elements may also be present in smaller amounts depending on the type of steel being used. The exact composition will vary from one grade to another. Generally speaking, higher grades will contain more nickel than lower grades.

C 0.05 Max P 0.030 Max Cr 11.5 – 14.0
Si 0.60 Max S 0.030 Max Ni 3.50 ‐ 5.50
Mn 0.50 ‐ 1.00 Mo 0.50 ‐ 1.00

AISI 415 Physical Properties

415 grade has a high level of corrosion resistance due to its high chromium content. This makes it well suited for use in marine environments as well as other areas where corrosion may be an issue. It also has a high tensile strength, making it strong and resistant to wear and tear. It also has good thermal conductivity, making it useful in applications involving heat transfer, such as cookware or heat exchangers.

AISI 415 Mechanical Properties

The mechanical properties of 415 SS are determined by its composition as well as the processing techniques used during manufacturing. Generally speaking, this alloy has good tensile strength and can withstand high levels of stress without deforming or becoming brittle. It also has a high level of ductility which means it can be easily shaped into various forms without cracking or breaking apart under pressure. Finally, because it contains chromium, this alloy can resist oxidation at elevated temperatures for prolonged periods without losing its structural integrity or becoming brittle.

Tensile Strength R₃ N/mm² 700-800 700-800 700-800 700-800 700-800 700-800 700-800
0.2% Offset Yield Strength Rᵖ ≥N/mm² 520 520 520 520 520 520 520
Elongation in 2 inches, % 15 min 15 min 15 min 15 min 15 min 15 min 15 min

AISI 415 Equivalent

X3CrNiMo13-4 (1.4313)

415 Stainless Steel Uses

SS 415 is commonly used in industrial applications such as valves and pumps due to its excellent corrosion resistance properties. It is also often used in food processing equipment because it does not react with acidic foods like other types of stainless steel might. This type of steel is often found in automotive components such as exhaust systems because it can resist extreme temperatures without becoming brittle or deforming over time. Finally, it can also be found in kitchen appliances such as dishwashers since it is easy to clean and resistant to staining from food particles or liquids that come into contact with the surfaces during cleaning cycles.


As you can see from this guide, there are many uses for 415 stainless steel due to its excellent physical and mechanical properties, including corrosion resistance, strength, thermal conductivity, and ductility. Whether you’re looking for a material for your next industrial project or searching for kitchenware that won’t corrode over time, it’s worth considering using 415 stainless steel. With proper care, this durable material will last you through years of use.

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