ThePipingMart Blog Grades 316N Stainless Steel (UNS S31651) – Composition, Properties, and Uses

316N Stainless Steel (UNS S31651) – Composition, Properties, and Uses

316N Stainless Steel

If you’re looking for a durable and dependable stainless steel alloy, 316N is an excellent choice. It’s a nitrogen-strengthened version of the popular 316 grade, and this makes it even more resistant to corrosion, better suited for welding and capable of withstanding extreme temperatures. Let’s dive into what makes this alloy so special.

316N Stainless Steel Composition

316N stainless steel has a chemical composition that includes 18% chromium, 11% nickel, 3% molybdenum and 3% manganese. It also contains up to 0.25% nitrogen, which increases its strength and resistance when compared with other 304 grades of stainless steel.

C.% 0.08
Si.% 0.75
Mn.% 2.00
P.% 0.045
S.% 0.030
Cr.% 16.0-18.0
Mo.% 2.00-3.00
Ni.% 10.0-14.0
Others N:0.10-0.16.%

316N Stainless Steel Physical Properties

Due to its nitrogen-strengthening properties, stainless steel 316N has a higher yield strength than other 304 grades of stainless steel. This means that it can remain in its original shape despite being subjected to high levels of strain or pressure without becoming deformed or distorted. As such, it’s often used in applications where parts must be able to withstand significant force without breaking or suffering damage. Additionally, due to its increased hardness level, 316N requires less effort on behalf of the machinist when cutting it into shape – creating products quickly and efficiently with little wastage or wear-and-tear on machinery parts.

316N Stainless Steel Mechanical Properties

316N ss is exceptionally strong when put under stress – making it ideal for use in high-pressure environments like transportation machines (such as cars) and industrial processes (like manufacturing). Its mechanical properties also include impressive tensile strength (the ability to resist being pulled apart), good flexibility (making it suitable for bending or stretching without breaking) and excellent ductility (the capacity for the material to be shaped into thin wires). All these properties make 316N an ideal choice for many engineering tasks.

Tensile Strength Yield Strength Elongation
550(Mpa) 240(Mpa) 35%

316N Stainless Steel Uses

316N stainless steel is an invaluable material for a variety of industrial and commercial applications. Its resistance to corrosion and its ability to withstand extreme temperatures make it ideal for use in severely harsh environments, such as those encountered in chemical processing plants and manufacturing industries. In addition, 316N stainless steel is regularly used in the production and assembly of medical instruments, making it a valuable tool for healthcare professionals. Its strength is appreciated in the construction industry as well, where it can be used for framing and for outdoor applications such as bridges and staircases. With all these uses, it’s no wonder that 316N stainless steel is one of the most popular metals on the market today.


To sum things up, if you’re looking for a tough yet flexible metal alloy that can stand up against harsh conditions without sacrificing performance or reliability, then 316N Stainless Steel should definitely be considered as an option! Its combination of high tensile strength, ductility and corrosion resistance make it well suited for all kinds of industrial applications – from manufacturing machinery parts right through to automotive components, wherever quality is key. So why not give this unique grade of steel a try today? You won’t regret it!

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