The weld metal has excellent strength and oxidation resistance at high temperatures and retains impact resistance at cryogenic temperatures. The electrode is an exceptionally versatile product for dissimilar welding. It can be used on a variety of austenitic and ferritic steels and nickel alloys.
Excelent weldabillity with fully austenitic weld metal with high resistance against stress corrosion cracking and pitting in media containing chloride ions. Good corrosion resistance against reducing acids due to the combination of Ni, Mo and Cu. Sufficient resistance against oxidizing acids. The weld metal is corrosion resistant in sea water.
Dur 25U is a Cobalt based electrode developed to resist high impact load, high heat, thermal shock, hot corrosion, compression, abrasion, erosion and many other forms of attack. The weld deposit is machinable with carbide tools.
Ceweld 4820 AC is an AC-weldable fully core-wire alloyed electrode for fabrication and repair welding on equal or similar, corrosion and heat-resistant steels and steel-castings. The weld-deposit is on equal base-material scale-resistant and, by reason of its low nickel-content, resistant against attack of sulphurous gases at higher temperatures up to 1150°C. When welding Ceweld 4820 AC low heat-input is required as alloys of such chemistry are sensitive to embrittlement at 600-800°C. The interpas temperature should not exceed 300°C.
Latest generation high recovery type (170%) guarantees optimum deposit rate and metallurgical quality and attractive welder appeal in the PA-PB position. Very good resistance against pitting corrosion and crevice corrosion. Very good against acid, neutral or alkaline media, with or without chlorides. Very good resistance at high temperatures, especially against oxidation.