… CEWELD® SA Nicro 690 strip is resistant to a wide range of corrosive media and … and sulphidising effect. Due to its high nickel content, CEWELD® SA Nicro 690 Strip is exceptionally resistant to stress corrosion cracking … sulphuric acid at temperatures of up to 150 °C (300 °F). … CEWELD® SA Nicro 690 Strip is mainly used for ESW and SAW cladding on steels to …