D286B meet GB EDMn-B-16 


 Description: D286B is a low hydrogen potassium type coating, Mn, Mo-type high manganese steel surfacing electrode, AC and DC. Deposited metal was austenite can be cold working, hardening after impact, impact wear resistance, high toughness and good crack resistance. 


 Application: Suitable for welding of high manganese steel, high manganese track railway, special electrode turnout Surfacing can also be used for various types of crushers, bulldozers and other surface by the impact - wear parts of the surfacing. 


 Chemical Composition of Deposited Metal (%) Chemical Composition C Mn Si SP Ni 
 Guaranteed value ≤ 0.12 14.0 ~ 15.0 ≤ 0.40 ≤ 0.035 ≤ 0.035 3.00 ~ 4.00 


 Surfacing layer hardness: grind welded rolling after impact, after hammering 
 HB 180-230 HB 270-320 HB 360-470 


 Reference current (AC, DC +) electrode diameter (mm) φ3.2 φ4.0 φ5.0 
 Welding current (A) 70 ~ 90 140 ~ 180 150 ~ 200 


 Note: 
 1. Welding electrodes shall be subject to 350 ℃ or so before baking 1h. 
 2. Surfacing edge when the edge of water chilling welding, after welding, hammering, grinding mill impact.