A29.9 duplex stainless steel electrodes meet the GB E2209-16 
 Rather AWS E2209-16 
 Description: 2216 is a titanium calcium type of ultra-low carbon duplex stainless steel electrode, deposited metal contains 40% -50% of ferrite, with excellent mechanical and corrosion resistance xing can, especially with a reliable resistance xing chloride can be corrosive and high pitting resistance. Good welding performance. Can be AC and DC. 
 Uses: Used for welding low carbon 00Cr22Ni5Mo3N, SAF2205 duplex stainless steel, etc.. 
 Chemical Composition of Deposited Metal (%) 
 Chemical Composition C Mn Si S P Cu Ni Mo Cr N 
 Guaranteed value ≤ 0.04 0.50 ~ 2.0 ≤ 0.90 ≤ 0.03 ≤ 0.04 ≤ 0.75 8.5 ~ 10.5 2.5 ~ 3.5 21.5 ~ 23.5 0.08 ~ 0.20 

 Mechanical Properties of Deposited Metal 
 Pilot project σb (MPa) δ5 (%) 
 Guaranteed value ≥ 690 ≥ 20 

 Reference current (AC, DC +) 
 Electrode diameter (mm) φ3.2 
 Welding current (A) 90 ~ 120 

 Note: 
 1. Welding electrodes shall be subject to 250 ℃ or so before baking 1.5h. 
 2. As far as possible dc power supply, current is not too large. 
 Standard implementation of GB/T983-1995 
 Welding position: