455 Stainless Steel

The 455 Stainless Steel

455 Stainless Steel: Unleashing Innovation, Building a Stronger Future

455 Stainless Steel Unleashing Innovation

455 Stainless Steel (UNS S45500) is an advanced martensitic alloy known for its exceptional combination of mechanical and physical properties. This stainless steel grade offers ease of fabrication, corrosion resistance, high yield strength, and one-step age hardenability. In fact, it boasts three times the strength of standard stainless steel grade 304. 

By undergoing a one-step aging treatment, 455 steel achieves super high yield strength, while maintaining toughness and good ductility. Even during heat treatment, this grade remains remarkably stable, allowing for precise machining to close tolerances before aging.

455 steel is a versatile grade suitable for various applications. It excels in corrosive environments where both standard austenitic and martensitic grades fall short in terms of strength and corrosion resistance requirements. Comparable to other martensitic stainless steels, it exhibits optimal performance with slow and positive feeds. 

Machinability of 455 Stainless Steel

Preheating the material is typically unnecessary. Both shielded fusion methods and resistance welding are commonly employed, with post-weld aging recommended to achieve the best properties. Machining 455 bar steel follows similar methods used for other high-strength alloys, including work supports, positive cuts, robust tools, slower speeds, and ample coolant. 

In its annealed condition, 455 steel is formable and soft, making it suitable for machining and welding using techniques employed for precipitation-hardenable stainless steel. Its low work-hardening rate allows for cold forming, marking it as a significant advancement in the field of precipitation-hardening stainless steels.

Benefits of Using 455 Stainless Steel

Experience the numerous advantages of utilizing 455 bar steel, a tried and tested material with over 50 years of application in the manufacturing industry. Its key benefits include:

  1. Corrosion Resistance: 455 steel exhibits excellent resistance to corrosion and rust, making it ideal for use in industries such as food processing, medical devices, aerospace, and nuclear power plants.

  2. Strength and Durability: With its remarkable strength-to-weight ratio, 455 steel provides exceptional durability and long-lasting performance.

  3. Heat Resistance: This steel grade demonstrates high resistance to heat, ensuring stability and functionality even under extreme temperature conditions.

  4. Machinability: 455 steel is easily machined, allowing for precise manufacturing of parts that require precision cutting. Its good ductility provides flexibility during the manufacturing process.

  5. Versatility: From kitchen utensils to cutlery and other household items, 455 stainless steel is utilized in a wide range of products due to its high corrosion resistance, chemical resistance, and superior strength.

PGB’s Quality 455 Steel

PGB, a leading supplier of stainless steel round bars, offers a wide range of products, including the highly sought-after custom 455 steel. Renowned for exceptional customer service and quality, PGB ensures that customers receive top-of-the-line products tailored to their specific needs. 

PGB stands as one of the most trusted suppliers of 455 stainless steel, having consistently delivered high-quality products to numerous businesses over an extended period. 

For more information about our services and product availability, you may contact us directly to talk to one of our steel experts or get our free quotation to be assisted with your requirements today!


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