Westbrook HF-425 Hardfacing Electrode - 4.0mm Dia. - 6kg Pack

HF-425 is a synthetic rutile coated hardfacing electrode with a high recovery rate of 160%. It’s designed for applications that are subject to abrasive wear by minerals, combined with medium shocks and compression.

The electrode has an austenitic matrix containing Cr carbides, which gives the deposit resistance to corrosion due to its high chromium content (32%) and can withstand heat up to 200°C.

The electrode offers easy flow and self-releasing slag. The maximum hardness, as deposited, is achieved in 3 layers.

Features & Benefits:

• Synthetic Rutile Coated: Ensures smooth welding and a consistent arc.
• High Recovery: Offers a recovery rate of 160%.
• Corrosion & Heat Resistant: Due to the high chromium content, the deposit resists corrosion and can withstand heat up to 200°C.
• Easy Flow & Self-Releasing Slag: Simplifies the welding process and ensures a clean weld.

Common Applications:

• Abrasion & Shock Resistance: Suitable for applications requiring resistance to high abrasion combined with good shock resistance.
• Machinery & Equipment: Used for excavating and crushing equipment, surfacing of endless screws, mixer blades, pump bodies for abrasive materials, excavator teeth, and crushing installations for minerals.
• Industrial Applications: Ideal for concrete pumps, ore crushing, ploughshares, screw presses for the brick manufacturing industries, and more.

All Weld Metal Hardness

~ 58HRC 61 – 63HRC

Additional Information

Redrying, if necessary, 1h/250°C. Guide electrode almost vertically with a short arc.

In case of hardfacing highly alloyed steels like stainless steels, it is recommended to apply a cushion layer with 18/8Mn. [AS-300]

Welding Positions

• 1G (Flat Position)

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