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.
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.