Stainless Steel – Grade 414 (UNS S41400)

Stainless Steel – Grade 414 (UNS S41400)

Stainless steel is a prominent material used in various applications. From your kitchen to nuclear power reactors and the aerospace industry, it finds its applications in almost all industries. Because of its properties, stainless steel is an ideal choice for a wide range of applications. It is corrosion-resistant and is highly resistant to extreme temperatures. It is also highly durable and has a high tensile strength. Based on your application and requirements, you can make a wise choice from different grades of stainless steel.

Let us discover different properties of one of the widely used stainless steel; grade 414. 

About Grade 414 Stainless Steel

Grade 414 stainless steel is a martensitic stainless steel. Known for its non-corrosive and non-magnetic properties along with high toughness, it is widely used in various industries. Grade 414 is a high-chromium steel that offers good corrosion resistance and ductility. It is a popular choice for applications that require strength and corrosion resistance. Grade 414 is an ideal material for high-temperature applications.

AISI 414 Chemical Composition

Stainless steel is an alloy of Iron, chromium, manganese, carbon, and many other metals. These metals when mixed in different proportions, provide different grades of stainless steel its unique properties. In this section, we will discover the chemical composition of the stainless steel grade 414, which is responsible for its magnificent properties. 

Iron, Fe

83.4%

Chromium, Cr

12.5%

Nickel, Ni

1.88%

Manganese, Mn

1.0%

Silicon, Si

1.0%

Carbon, C

0.15%

Phosphorous, P

0.040%

Sulfur, S

0.030%

Physical Properties of Stainless Steel Grade 414

When using stainless steel grade 414 for different applications, it is important to know about its physical properties. Below are the physical properties of grade 414

Density

7.80 g/cm3

 

Mechanical Properties of Stainless Steel Grade 414

Want to confirm the usability of grade 414 for your application. These mechanical properties will give you an insight into how suitable will grade 414 be for your applications.

 

Tensile strength

1795 MPa

Yield strength (@strain 0.200%)

1013 MPa

Elastic modulus

200 GPa

Poisson's ratio

0.27-0.30

Elongation at break (in 50 mm)

15%

Izod Impact (hardened and tempered)

30-80 J

Hardness, Brinell (converted from Rockwell C hardness)

459

Hardness, Knoop (converted from Rockwell C hardness)

506

Hardness, Rockwell C (before testing)

48

Hardness, Vickers (converted from Rockwell C hardness)

487

Thermal Properties of Stainless Steel Grade 414

Are you looking to deploy stainless steel grade 414 for applications that have to deal with high temperatures? These thermal properties can tell you the suitability of grade 414 stainless steel for your application.

Thermal expansion coefficient (@0-100°C/32-212°F)

10.4 µm/m°C

Thermal conductivity (@100°C/212°F)

24.9 W/mK

 

Applications of Stainless Steel Grade 414

Because of its excellent strength and corrosion resistance, 414 stainless steel is widely used in various applications, including:

  • Bearings, 
  • Pump shafts, 
  • Valve components, 
  • Food processing machinery, and 
  • Cutlery 
  • Aerospace industry
  • Medical industry