Pulverised coal fired boiler water tube panel weld overlay cladding for anti corrosion can sinificantly improve the boiler life cycle. 
Circle MIG weld overlaycladding technique can be used for onsite service and make the cladding work efficient. Various cladding material available for this purpose.
The price is sensitive to cladding material, cladding thickness and the detail requirement. Please, send enquiry with your detail requirements for a quote.