440C Stainless Steel round Bar

Overview of 440C Stainless Steel

440C stainless steel is a high-carbon type of stainless steel that is most commonly used in knife-making. This alloy can be heat treated to achieve high strength and hardness, offering superior abrasion and wear resistance, particularly in bearing and bushing applications. It's important to note that its corrosion resistance is effective only in the hardened condition.

440C is classified as a high-carbon Martensitic stainless steel, characterized by moderate corrosion resistance and good strength. When heat treated, 440C stainless steel can reach hardness levels of 60 HRC or higher, making it the hardest of all stainless steels. Additionally, 440C stainless steel is magnetic in all conditions and exhibits excellent wear resistance. It can also be cold worked and responds well to various heat treatment practices.

Common Applications

Common industries and applications for 440C stainless steel include:

• Bearings & Bushings
• Valves
• Knives and Cutlery
• Tooling

Product Forms

440C stainless steel is available in several product forms, including round bar, square and rectangle bar, and forgings. The stainless steel round bar form of 440C is particularly popular due to its versatility and strength, making it an ideal choice for various demanding applications.

Mechanical Properties

The mechanical properties of 440C stainless steel are typically not required to be reported in the annealed condition. It is usually purchased in this condition and then machined prior to heat treating, allowing for hardening to 50-60 HRC. The availability of 440 stainless steel round bar enhances its appeal for manufacturers and craftspeople alike.