Bradken's Duablock products are a composite material comprising of a chromium-molybdenum abrasion resistant white iron casting, metallurgically bonded to a weldable mild steel backing plate. The white iron casting is a superior wear resistant product, containing hard chromium carbides, typically 1500HV, supported in a martensitic matrix.
The mild steel backing plate is vacuum brazed to the white iron casting, giving a true metallurgical bond. Other backing plates, such as stainless steel, can also be used to suit the operating environment.
The standard backing plate is machined flat for quick attachment by welding or Bradken can supply blocks fitted with studs for easy installation and removal. When welding a backing plate to a surface, no pre heating or post heating is required.
A wide variety of standard blocks are available, adapted for specific applications. However, Bradken's block products can be custom designed to meet any situation regardless of size and shape concerns. Bradken can also supply cut and shaped blocks to be strategically placed on equipment so that a unique wear package can be created, maximising wear life.
Bradken's Block products offer superior wear life compared to Q & T bars, manganese steel and chrome-molybdenum pearlitic steels.
Block Product Solutions (307kb pdf)