Chromium Carbide Overlay

Duroxite - Introducing the latest in overlay technology

Duroxite - Introducing the latest in overlay technology

Taking Durability to the Extreme

Duroxite 201 is developed for severe wear and impact applications applying specially formulated abrasive materials on Hardox 450 backing plate.

The overlay material is composed of primary chromium-rich carbides and refined multiple-alloy complex carbides dispersed evenly in a ductile eutectic austenite matrix. The additional multi-alloy carbides are harder and finer than the co-existing chromium-rich carbides which interlock between large primary chromium-rich carbides in a matrix. 

Key Benefits

  • Hardox 450 backing withstands plastic deformation better due to its high yield strength flexing back after impact 
  • Provides stronger support due to high hardness and better bonding properties between overlay and base steel
  • Better performance for impact situations than Duroxite 200 at elevated temperatures up to 350° C (660° F), but impact resistance is best at room temperature 

Typical Applications

Duroxite 201 is widely used in many mining applications:

Screen plates, loader bucket liners, feeding systems for ball mills, loader bucket liners, bucket lip shrouds, bucket side shrouds, chutes, liner plates and skip liners


Open pit copper mining

Application: Electric shovel

Wear part: Liner package with Duroxite plate for the most abrasive area

Purpose: Increase payload and service life

Type of wear: Sliding wear and some impact

Benefit: Service life increased by 56% with Duroxite liner compared to AR 600 liners


Per SSAB website