L605, also known as UNS R30605, AMS 5537, STELLITE 25, and UDIMET L605, is a cobalt-chromium alloy known for its exceptional hardness and high-temperature strength. It is used in demanding applications requiring superior wear resistance and resistance to oxidation.

L605 is designed for use in extreme environments where high hardness and resistance to high temperatures are crucial. Its composition allows it to maintain its properties in challenging conditions, making it suitable for various industrial and aerospace applications.

L605 Sheet | Plate

L605 sheets and plates are available in various thicknesses and sizes. These materials are used in applications requiring high strength and wear resistance, such as in aerospace and industrial components.

L605 Round Bar | Rod

L605 round bars and rods are available in different diameters and lengths. These products are used for precision machining and manufacturing components that require high hardness and thermal stability.

L605 Strip | Coil

Available in strips and coils, L605 is used for applications that need flexible, high-strength materials. These forms are often utilized for producing parts and components that require durability under high-temperature conditions.

L605 Applications

• L605 is extensively used in aerospace applications for components such as turbine blades, nozzles, and other parts exposed to high temperatures and wear.

L605 Properties

• Tensile Strength: L605 exhibits high tensile strength, making it ideal for components subjected to significant mechanical stress and high temperatures.
• Density: Approximately 9.14 g/cm³, providing a favorable strength-to-weight ratio for demanding applications.
• Thermal Conductivity: Low thermal conductivity helps maintain stability and performance under high-temperature conditions.
• Oxidation Resistance: The alloy offers excellent resistance to oxidation and scaling at elevated temperatures, extending the lifespan of components.
• Corrosion Resistance: L605 has superior resistance to a wide range of corrosive environments, including acidic and basic conditions.

Machining L605

• Cutting: L605 can be cut using high-speed steel or carbide tools. Water jet cutting or laser cutting is recommended for precision applications.
• Drilling: Use carbide or cobalt drills for drilling L605. Adequate cooling and lubrication are essential to maintain tool life and ensure accurate drilling.
• Turning: Carbide inserts are preferred for turning L605. Consistent cutting speeds and proper cooling are crucial for achieving optimal results.
• Milling: Milling operations should use carbide end mills with sufficient cooling to manage heat and maintain precision.
• Grinding: For grinding L605, use diamond or CBN wheels to achieve precise tolerances and a high-quality surface finish. Adequate cooling is necessary to prevent overheating and maintain dimensional accuracy.

Chemical Composition

• Carbon (C): Min 0.10%, Max 0.15%
• Manganese (Mn): Min 1.50%
• Phosphorus (P): Max 0.040%
• Sulfur (S): Max 0.030%
• Silicon (Si): Max 0.40%
• Chromium (Cr): Min 20.00%
• Nickel (Ni): Min 10.00%
• Iron (Fe): Max 3.00%
• Tungsten (W): Min 15.00%