AWS/SFA-5.4: E 385-16
DIN E 20 25 5 Cu R 26
Ratna 20/25/5 Cu is a special type electrode producing an extra low carbon weld metal containing 20Cr-25Ni-5Mo-2Cu. The weld metal exhibits excellent corrosion resistance to sulphuric acid, phosphoric acid, acetic acid, formic acid, fatty acids, oxalic acid, and similar corrosive environments.
Re-Dry the electrode at 250°C for 1 hrs before use.