Elga Cromarod 385 (904L) Electrodes

Cromarod 385 (904L) is a rutile flux coated electrode designed for welding the fully austenitic stainless steels of the 20%Cr / 25%Ni / 4.5%Mo / Cu type, used for their very high resistance to corrosion in severe, non-oxidising environments e.g. sulphuric acid. The low carbon, high alloy content of Cromarod 385 weld metal gives excellent resistance to intergranular corrosion and stress corrosion cracking, combined with superior resistance to crevice and pitting corrosion. Use no preheat, avoid high heat-input and maintain an interpass temperature of maximum 150 °C.

Classifications:

AWS A5.4 / ~E385-17 / EN 1600 / E 20 25 5 Cu N L R 12 / ISO 3581-A / E 20 25 5 Cu N L R 12

Corrosion resistance: Very good resistance to general and intergranular corrosion in non-oxidising acid environments e.g. sulphuric (up to 90%), phosphoric and organic acids. Good resistance to stress corrosion in chloride bearing environments.

http://proweldwelding.com.au/resources/images/Cromarod 385.pdf