D167 in line with GB / T 984 EDPMn6-15 Description: D167 is a low hydrogen sodium type coating MnSi type welding electrodes, DC reverse. Uses: surfacing used in agriculture, construction machinery and other wear parts, such as large bulldozers, power shovels wheel, auto chain and so on. Deposited metal chemical composition (%) C Mn Si guaranteed ≤0.45 ≤6.50 ≤1.00 cases 0.30 5.50 0.90 Surfacing layer hardness: HRC≥50 Reference Current (DC +) Electrode Diameter (mm) f3.2 f4.0 f5. 0 Welding current (A) 90 ~ 110 140 ~ 180 180 ~ 220 Note: 1. Welding electrodes shall be subject to 300 ~ 350 ℃ baking 1h. 2. Before welding large parts should be properly preheated to about 300 ℃, and welding parts of the surface rust and oil are removed.