Boiler Tube Weld Overlay
Vclad® CMT is a proprietary weld overlay process that combines the economics and strength of carbon or low alloy base tube material, with a NiCrMo weld overlay layer in a range of materials specifically to meet the demands of corrosion mitigation in a variety of combustion environments.
The system technology delivers 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.
Vclad® CMT weld overlaid tube encompasses the full range of typical boiler tube sizes 38 mm – 76.1 mm, but with the enhanced capability for large diameters up to 220 mm diameter for header and collector bodies, and < 38 mm for specialist superheater applications.
Cladding as surface protection for pressure part components installed in energy from waste, biomass, fluidized bed, and fossil fired boilers is an industry benchmark where aggressive combustion conditions exist.
Materials within our range of experience include Alloy 625, 622, 686, and 59.
Automated Weld Overlay Cladding for Vessel and Piping Components
DTEC Engineering Limited specializes in automated weld overlay cladding, offering advanced solutions for industries like oil refining, chemical manufacturing, and power generation since 2009.
Using proprietary Vclad® technology and automated TIG welding systems, we provide field and workshop-based cladding services for applications such as:
- Flange faces and bores
- Pipe and nozzle bores
- Boiler tubes and tube sheets
- Heat exchanger covers and bespoke components
Our technology enables precision application of corrosion-resistant materials, enhancing durability at a reduced cost compared to obtaining specialist alloy forgings.
Key Advantages:
- Wide range of compatible alloys, including stainless steels, nickel-chrome alloys, Hastelloy, Monel, and Stellite 6.
- ISO 3834-2 certified for comprehensive fusion welding quality.
- Economical and flexible solutions with faster delivery times.
