What products require nitriding heat treatment

May. 30, 2025

Nitriding heat treatment is a surface treatment process that enhances the hardness, wear resistance, fatigue resistance, and corrosion resistance of metals by introducing nitrogen into their surface layers. Below are the types of products that typically require nitriding heat treatment and the reasons why:

Mechanical Transmission Components

Gears: Gears endure high loads and friction during transmission. Nitriding significantly improves their surface hardness and wear resistance, reducing wear and extending service life.

Crankshafts and Connecting Rods: Engine crankshafts and connecting rods are subjected to alternating loads at high speeds. Nitriding enhances their fatigue resistance, preventing surface cracks and fractures.

Camshafts and Valves: These components require high wear and fatigue resistance. Nitriding improves their surface properties, ensuring long-term stable operation.

Molds and Tools

Die-Casting Molds: Molds operate under high temperatures and pressures. Nitriding increases their surface hardness and corrosion resistance, reducing mold sticking and wear, and improving product quality and production efficiency.

Stamping Molds and Forging Dies: These molds endure high impact loads. Nitriding significantly enhances their wear and fatigue resistance, prolonging mold life.

Cutting Tools (Drills, End Mills, etc.): Nitriding improves the hardness and wear resistance of tools, reducing wear during cutting and enhancing machining accuracy and efficiency.

Aerospace Components

Aircraft Engine Blades and Turbine Disks: Nitriding enhances the surface hardness and heat resistance of these components, reducing high-temperature oxidation and wear, and ensuring engine performance and safety.

Aircraft Landing Gear Components: Landing gear components endure high loads and impacts. Nitriding improves their wear and fatigue resistance, extending service life.

Automotive Components

Drive Shafts and Universal Joints: Nitriding enhances the wear and fatigue resistance of these components, reducing wear and noise, and improving transmission efficiency.

Brake System Components (Brake Discs, Brake Pads, etc.): Although brake discs and pads often utilize other surface treatment processes (such as carburizing or coating), nitriding can also be employed in certain high-performance applications to enhance their wear and heat resistance.

Precision Mechanical Components

Precision Spindles and Bearings: Nitriding improves the surface hardness and wear resistance of these components, reducing friction and vibration, and enhancing machining accuracy and stability.

Measuring Tools and Instruments: Nitriding enhances the wear and corrosion resistance of measuring tools, ensuring measurement accuracy and long-term stability.

Agricultural Machinery Components

Harvester Blades and Plowshares: Nitriding improves the wear and corrosion resistance of these components, reducing wear and replacement frequency, and lowering usage costs.

What products require nitriding heat treatment