Two methods are typically used to bond the anticorrosion alloy to the inner surface of the
external carbon steel layer.
The first method consists of hot rolling a CRA layer on a carbon steel plate. A thin layer made of
a third material is generally placed between the CRA and the carbon steel in order to improve the
metallurgical characteristics of the bond.
The second method, which is referred to as “weld overlay clad,” consists of creating a layer by
welding successive passes of CRA on the inner surface of a carbon steel pipe, as shown in Figure
1A.