Vclad® CMT is a proprietary system technology delivering an automated and controlled application of Cold Metal Transfer (CMT) weld overlay to standard base tube materials. Programmable automation and advanced welding system architecture, ensure repeatable quality, and a high integrity weld overlay, with ultra low weld chemistry dilution.
The continuous spiral weld overlaid tube combines the economics and strength of a carbon or low alloy base tube material, with a Nickel Chromium weld overlay layer in a range of materials
Materials within our range of experience for boiler applications include Alloy 625, 622, 686, and 59.
Vclad® CMT weld overlaid tube is a solution for localised and expansive corrosion management in water walls, screen walls, and superheaters. The weld overlay application encompasses the full range of typical boiler tube sizes 38 mm – 76.1 mm, but uniquely with the enhanced capability for large diameters up to 220 mm diameter for header and collector bodies, and < 38 mm for specialist superheater applications.
We provide outage support for the inspection, maintenance, and application of weld overlay within boilers.
Alloy 625 weld overlay, typically applied to boiler water wall and radiant surfaces to provide high temperature corrosion protection, will in time suffer wear and degradation.
In order to maintain the ongoing protection that weld overlay provides, it is essential to carry out annual condition inspection and repairs where required.
Our weld overlay inspection, maintenance, and application services include;-