CK2389-6 - EN 40 Specialty Stick Electrode for Nitriding Steel

Specialized Electrode for EN 40 Nitriding Steels

The EN 40 Stick Electrode is a premium specialty consumable designed specifically for the welding and repair of EN 40 and EN 40B grade steels. These chromium-molybdenum nitriding steels are commonly found in high-performance applications such as racing engines, heavy machinery gears, and precision shafts due to their ability to be hardened for extreme wear resistance. Welding these materials requires a consumable that matches their mechanical properties and responds appropriately to post-weld heat treatment.

This electrode provides a high-quality weld deposit that offers excellent ductility and crack resistance, which is critical when working with high-strength alloy steels. It is formulated to minimize the risk of hydrogen-induced cracking and ensures a sound metallurgical bond. Whether you are building up a worn shaft or repairing a fractured gear tooth, the EN 40 electrode delivers the reliability needed for maintenance and repair operations (MRO).

Key Applications

• Gear Repair: Ideal for rebuilding teeth on heavy-duty gears made from nitriding steel.
• Shaft Restoration: Perfect for building up worn surfaces on crankshafts and transmission shafts.
• Die and Mold Repair: Suitable for repairing specialized tooling requiring high surface hardness after treatment.

For best results, proper pre-heat and interpass temperature controls should be observed when welding EN 40 steels to prevent the formation of brittle microstructures. This electrode is designed to operate with a stable arc and easy slag removal, making it user-friendly for skilled welders performing critical repairs.