HAYNES 230, also known as ALLOY 230 or UNS N06230, is a high-performance nickel-chromium-tungsten alloy designed for exceptional oxidation and carburization resistance at elevated temperatures. It is recognized under AMS 5878, AMS 5891, and W.NR.2.473.

HAYNES 230 is engineered for applications requiring materials that can withstand extreme temperatures and harsh environments. Its high tungsten content contributes to its remarkable resistance to oxidation and carburization, making it suitable for use in demanding applications.

Haynes 230 Sheet | Plate

HAYNES 230 sheets and plates are available in various thicknesses and sizes. These materials are used in high-temperature applications, such as in aerospace components, industrial furnaces, and gas turbines.

Haynes 230 Round Bar | Rod

HAYNES 230 round bars and rods come in different diameters and lengths. These products are ideal for precision machining and manufacturing components that need to perform reliably under extreme conditions.

Haynes 230 Strip | Coil

Available in strips and coils, HAYNES 230 is used for applications requiring flexible, high-strength materials. These forms are often utilized for producing seals, gaskets, and other components subject to high temperatures.

Haynes 230 Applications

• Heat treatment baskets, Catalyst grid supports, Gas turbine components, Heat exchangers, Bellows, Wire mesh belts, Heat treating fixtures, Basket liners, Muffles/retorts, Dampers, Thermocouple sheathing, Flame shrouds.

Haynes 230 Properties

• Tensile Strength: HAYNES 230 exhibits high tensile strength, making it suitable for applications involving significant mechanical stress at high temperatures.
• Density: Approximately 8.7 g/cm³, providing a good strength-to-weight ratio for demanding applications.
• Thermal Conductivity: The alloy has moderate thermal conductivity, ensuring stable performance under high-temperature conditions.
• Oxidation Resistance: HAYNES 230 offers exceptional resistance to oxidation, extending the service life of components in extreme environments.
• Carburization Resistance: The alloy’s high tungsten content contributes to its outstanding resistance to carburization.

Machining Haynes 230

• Cutting: Use carbide tools or high-speed steel for cutting HAYNES 230. Water jet cutting or laser cutting are recommended for precision applications.
• Drilling: Employ carbide or cobalt drills for drilling HAYNES 230. Proper cooling and lubrication are essential for maintaining tool life and ensuring accurate drilling.
• Turning: Carbide inserts are preferred for turning HAYNES 230. Consistent cutting speeds and high-pressure cooling are crucial for optimal results.
• Milling: Use carbide end mills with adequate cooling during milling operations to manage heat and maintain precision.
• Grinding: For grinding HAYNES 230, diamond or CBN wheels are recommended 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 0.05%, Max 0.15%
• Manganese (Mn): Min 0.30%, Max 1.00%
• Silicon (Si): Min 0.25%, Max 0.75%
• Phosphorus (P): Max 0.030%
• Sulfur (S): Max 0.015%
• Boron (B): Max 0.015%
• Nickel (Ni): Balance
• Chromium (Cr): Min 20.00%, Max 24.00%
• Cobalt (Co): Max 5.00%
• Molybdenum (Mo): Min 1.00%, Max 3.00%
• Lanthanum (La): Min 0.005%, Max 0.05%
• Tungsten (W): Min 13.00%, Max 15.00%
• Aluminum (Al): Max 0.50%
• Iron (Fe): Max 3.00%