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455 Stainless Steel

Explore the Strength and Corrosion Resistance of 455 Stainless Steel – Your Ultimate Guide.

What is 455 Stainless Steel?

455 stainless steel is a high-strength, corrosion-resistant alloy widely used in various industries, including aerospace, automotive, and medical equipment. This material is martensitic stainless steel that contains chromium, nickel, and molybdenum as its major alloying elements.

455  steel helpful in applications that require high strength, such as structural components and fasteners. It is also commonly used in harsh environments where corrosion is a concern, such as marine and chemical processing industries.

This material can be heat-treated to increase its strength further, making it an ideal choice for applications that require high load-bearing capacity. Additionally, 455 steel has good machinability and weldability, making it easier to work with than other high-strength materials.

In summary, 455 stainless steel is a versatile alloy with exceptional strength and corrosion resistance. Its unique composition makes it ideal for various industries requiring high-performance materials.

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Applications of 455 Steel

The unique combination of properties in 455 stainless steel makes it a popular material for various applications in various industries. Here are some typical applications of 455 bar:

  • Aerospace Industry: The aerospace industry requires high-strength materials to withstand harsh environments and extreme temperatures. 455 steel produces aircraft parts, such as landing gear components, engine mounts, and structural elements.
  • Automotive Industry: The automotive industry requires high-strength materials to withstand wear and corrosion. 455 is used to produce engine components, suspension parts, and exhaust systems due to its excellent corrosion resistance and strength.
  • Medical Equipment: 455 steel is used in the production of medical equipment due to its biocompatibility, high strength, and corrosion resistance. It is commonly used to produce surgical instruments, dental tools, and implantable devices.
  • Food Processing: The food processing industry requires materials resistant to corrosion and can withstand frequent exposure to cleaning agents and acidic foods. 455 is commonly used to produce food processing equipment, such as conveyors, mixers, and tanks.
  • Marine Applications: 455 stainless steel is highly corrosion-resistant in saltwater environments, making it a popular choice for marine applications. It produces boat propellers, marine hardware, and underwater equipment.

Properties of 455 Stainless Steel

455 stainless steel is a martensitic stainless steel that contains chromium, nickel, and molybdenum as its primary alloying elements. This material has a unique combination of properties, making it ideal for various applications.

Here are some of the key properties of 455 steel:

  • Corrosion Resistance: 455 steel offers excellent corrosion resistance in harsh environments, such as marine and chemical processing industries. The addition of 5% molybdenum enhances the material’s resistance to pitting and crevice corrosion.
  • Strength: 455 stainless steel is a high-strength material that can withstand high loads and stresses. It has a tensile strength of up to 220 ksi (kilopounds per square inch), making it ideal for structural components and fasteners.
  • Machinability: It has good machinability, which means that it can be easily machined using conventional methods. However, its high strength and hardness can also make it challenging to work with in some cases.
  • Weldability: 455 steel is weldable using common welding methods, such as gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW). However, preheating and post-weld heat treatment may be required to prevent cracking.
  • Heat Treatment: It can be heat-treated to further increase its strength. Typical heat treatment processes include annealing and quenching.


As such, it is now understandable why this type of alloy steel is sought after getting a quick review of its components.

Consequently, its high machinability is highlighted as it is commonly combined with sulfur to further improve its machinability and make carburizing processes more effective.

With its excellent machinability, this even elevated this alloy steel’s prominence among industries.

Fortunately, Advance Grinding Services never runs out of 4140 alloy steel bars and can very much supply your needs especially if you are operating in the Illinois area!



Density 7.7-8.0
Tensile Strength 95000 psi
Yield Strength 60200 psi
Hardness (Brinell) 197
Hardness (Knoop) 219
Hardness (Rockwell) 92
Hardness (Vickers) 207
Machinability 65

Quality 455 Steel from Adavance Grinding Services

The 455 steel bar has become an essential material for many industries in the Midwest due to its excellent toughness, high fatigue strength, and outstanding machinability. If you’re looking for the best supplier in the region, Advance Grinding Services offers custom 455 round bar types and is known for its high-quality products.

In addition to 455 steel, many other grades of stainless steel are available, including 304, 316LVM, 430F, and 440C, among others. Advance Grinding Services can provide you with 455 stainless steel for your specific industry application, no matter your industry.

Please request a quote from our website or give us a call today to acquire a high-quality 455 steel round bar for your next project.