D112 in line with GB / T 984 EDPCrMo-A1-03 Description: D112 titanium calcium type coating of CrMo-type surfacing electrode. AC and DC, when the welding arc stability, easy slag removal. Uses: Used by the wear of low carbon steel, medium carbon steel and low alloy steel parts surface, especially for mining machinery and agricultural machinery, welding and repair. Deposited metal chemical composition (%) C Cr Mo Other elements of total guaranteed value ≤0.25 ≤2.00 ≤1.50 ≤2.00 Example value 0.18 1.34 0.30 - Surfacing layer hardness: HB≥220 Reference current (AC, DC) electrode diameter ( mm) f3.2 f4.0 f5.0 welding current (A) 90 ~ 110 150 ~ 180 180 ~ 220 Note: 1. Welding electrodes shall be subject to about 150 ℃ baking 1h. 2. In large parts before welding should be preheated to about 200 ℃, rust and oil and welding parts of the surface to be cleaned.