D156 electrode wear 

 Description: D156 is a low hydrogen potassium type coating CrMn type of welding electrodes, high impact loads and resist friction and wear properties of intermetallic. AC-DC dual-use (exchange of space-time load voltage is greater than 70V), stable welding arc, operating freely, easy slag removal, small splash, solder wave shape appearance. 

 Application: Suitable for welding steel rolling machine parts, such as the tank rolling mill, the big steel gears, tractor wheel, roller and track link section. 

 Chemical Composition of Deposited Metal (%) 
 Chemical Composition C Mn Si Cr 
 Guaranteed value ≈ 0.10 ≈ 0.70 ≈ 0.50 ≈ 3.20 


 Surfacing layer hardness: HRC ≈ 31 

 Reference current (AC, DC +) 
 Electrode diameter (mm) φ2.5 φ3.2 φ4.0 φ5.0 
 Welding current (A) 50 ~ 90 110 ~ 140 150 ~ 190 200 ~ 240 


 Note: 
 1. Welding electrodes shall be subject to 300 ℃ or so before baking 1h. 
 2. Should be welded parts before welding surface rust and oil removed.