ER2209 coated covered electrode is a kind of welding wire containing Cr-Ni-Mo, which can be used to weld duplex stainless steel S3 1803/S32205, that is, 22% Cr-5% Ni-2% Mo-0. 15% N, and can also be used to weld SAF2304. Characteristics ER2209 coated covered electrode is a kind of welding wire containing Cr-Ni-Mo, which can be used to weld duplex stainless steel S3 1803/S32205, that is, 22% Cr-5% Ni-2% Mo-0. 15% N, and also can be used to weld SAF2304. Used for welding pipeline systems, oil pipelines, risers, etc. Oil, gas and petrochemical equipment on offshore platforms. Duplex stainless steel pipes, plates, devices and forgings have a ferrite and austenite structure of about 50:50.

Good corrosion resistance to external environment. Good resistance to stress corrosion cracking caused by chloride ions.

Can be used for short arc, jet arc or pulse arc welding.