MLP products from Brazil & Indonesia from Cladtek Group

A Mechanically Lined Pipe, often referred to simply as CRA pipe. Mechanically lined pipes (MLPs) play a crucial role in the oil and gas sector, especially in environments where the fluids being transported can cause corrosion. The distinctive feature of MLPs lies in their construction method, which entails inserting a corrosion-resistant alloy (CRA) sleeve into the backing steel. In contrast to clad pipes, where the CRA is metallurgically bonded to the backing steel, MLPs use a CRA weld overlay to seal the ends, eliminating the necessity for a direct bond between the liner and backing steel.

This unique design not only ensures effective corrosion resistance but also results in substantial cost savings. MLPs can be notably more cost-effective, offering savings ranging from 25 to 40% when compared to traditional clad pipes. The financial benefits, combined with their corrosion-resistant properties, position MLPs as an appealing choice in the oil and gas industry for overcoming the challenges posed by corrosive production fluids. It has developed its own bend testing facility for proving the performance of the lined pipe during installation, whether by traditional S Lay or by reeled methods, and in operational cases such as for lateral buckling.

Cladtek’s mechanically lined pipe is unique as the liner is trimmed back at the pipe ends and finished with a two layer Hot Wire GTAW weld overlay. This innovation makes installation time considerably faster and more cost effective. Cladtek can manufacture CRA lined pipe in sizes ranging from 4” to 32” (34” to 48” under development) with current production facilities, and the production technology has been tested up to 42