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Weld Overlay Plate

Duaplate® D60


Duaplate® D60 is a chromium carbide weld overlay used in the mining and mineral processing industries. The manufacturing process of Duaplate®, along with the microstructure and chemical composition, give D60 its superior properties. D60 performs well under high impact and is resistant to highly abrasive environments. It is available in large sheet sizes or can be cut to custom shapes.

The D60 overlay material is an austenitic chromium carbide weld overlay that is based on AS2576-2355. The microstructure consists of primary M7 C 3 carbides in a carbide-austenite eutectic matrix. The high abrasion resistance is provided by the hard chromium carbides that protect the matrix from abrasive wear.

Duaplate® is manufactured by welding an abrasion-resistant material to a mild steel base. A chromium-rich powder is fused to the base plate, creating a bi-metallic material with high abrasion resistance whilst still retaining ductility allowing forming and welding. Multiple overlay and backing plate thickness options are available.
D60 is manufactured to Bradken’s proprietary specifications. The typical chemical composition is given below:











A D60 microstructure consists of large, primary M7 C 3 carbides surrounded by a eutectic mixture of carbides and austenitic matrix material. The very hard primary carbides form as hexagonal, needle-like rods which are very resistant to wear. The austenitic matrix material provides mechanical support to the primary carbides whilst also helping to absorb impact.

Bulk Hardness

620–700 HV50

Carbide Hardness

1100–1600 HV0.5

Volume Fraction of Carbides



7850 kg/m3

Used on:
  • Bin & Hopper Liners
  • Chute Liners
  • Main Frame Liners
  • Slurry Pipes & Bends
  • Sugar Processing Equipment

Duaplate® D60 Weld Overlay

Duaplate® D60 Weld Overlay Manufacturing Process

Duaplate® D60 Weld Overlay Manufacturing Process

Duaplate® D60 Weld Overlay Microstructure

Duaplate® D60 Weld Overlay Microstructure

Duaplate® D60 Weld Overlay Bin Liners

Duaplate® D60 Weld Overlay Bin Liners

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