D172 chrome molybdenum steel welding electrodes Model: EDPCrMo-A3-03 
 Note: Cr-Mo steel welding electrodes, AC-DC dual-use, stable arc, easy slag removal. 
 Uses: welding gear, excavators, tractor scraper, deep plowing plow, mining machinery, and other wear parts. 
 Chemical composition of deposited metal /% 
 C ≤ 0.50 Cr ≤ 2.50 Mo ≤ 2.50 
 Surfacing hardness HRC: ≥ 40 

 D177SL surfacing electrode 
 Description: aluminized steel in a series of welding electrodes, welding wear conditions specific to the use of aluminized steel or aluminized steel, the use of DCSP, short arc operation. 
 Uses: Used for welding single or multi-layer wear and tear of various parts of aluminized steel, aluminized steel, such as power plant boiler economizer tubes. 
 Chemical composition of deposited metal /% 
 C ≤ 0.50 Cr ≤ 2.50 Mo ≤ 2.50 
 Surfacing hardness HRC: ≥ 40 

 D202A iron-based surfacing electrode 
 Description: The iron-based surfacing electrode, DC and AC welding performance, weld overlay, moderate hardness, good ductility and impact resistance. 
 Uses: carbon steel and low alloy steel rolling mill in the welding of parts such as sheaves mill, steel gear, etc. 
 Chemical composition of deposited metal /% 
 C ≤ 0.15 Si 0.2 ~ 0.4 Mn 0.5 ~ 0.9 Cr 1.8 ~ 2.3 
 Surfacing hardness HRC: 26 ~ 30 

 D202B iron-based surfacing electrode 
 Description: The iron-based surfacing electrode, DC and AC welding performance, surfacing metal for the martensite has good resistance to metal abrasion, impact resistance, wear and resistance to thermal fatigue molding performance. 
 Use: Single or multi-layer welding the wear of various parts such as gears, digger, mining machinery. Chemical composition of deposited metal /% 
 C 0.5 ~ 0.7 Si 0.3 ~ 0.5 Mn 0.6 ~ 1.0 Cr 4.4 ~ 5.0 
 Surfacing hardness HRC: 54 ~ 58 

 D207 chrome manganese silicon steel welding electrodes Model: EDPCrMnSi-15 
 Description: Chromium manganese silicon steel welding electrodes, the use of DCRP. 
 Uses: used bulldozers blade plate welding, propeller and other wear parts. 
 Chemical composition of deposited metal /% 
 C 0.5 ~ 1.00 Si ≤ 1.00 Mn ≤ 2.50 Cr ≤ 3.50 ≤ 1.00 Other 
 Surfacing hardness HRC: ≥ 50 

 D212 chrome molybdenum steel welding electrodes Model: EDPCrMo-A4-03 
 Note: Cr-Mo steel welding electrodes, AC-DC dual-use, stable arc, easy slag removal. 
 Uses: intermediate or multi-layer welding the wear of various parts such as gears, digger, mining machinery. 
 Chemical composition of deposited metal /% 
 C0.3 ~ 0.60 Cr ≤ 5.00 Mo ≤ 4.00 
 Surfacing hardness HRC: ≥ 50 

 D217A Cr-Mo steel welding electrodes Model: EDPCrMo-A3-15 
 Note: Cr-Mo steel welding electrodes, DCRP. 
 Uses: Used to weld high-strength wear-resistant parts, such as metallurgical 30CrMnSi and 35CrMnSi surfacing and repair of rolling rolls, ore crusher parts, mining and electricity by 4m and other excavator bucket teeth bucket teeth and so on. 
 Chemical composition of deposited metal /% 
 C ≤ 0.5 Cr ≤ 2.50 Mo ≤ 2.50 
 Surfacing hardness HRC: ≥ 40 

 D227 chrome molybdenum vanadium steel welding electrodes Model: EDPCrMoV-A2-15 
 Description: chrome molybdenum vanadium steel welding electrodes, using DC reverse, martensite matrix overlay plus a certain number of high hardness carbide, high performance abrasive wear resistance, welding metal has good crack resistance, but machining more difficult, when necessary, about 860 ℃ isothermal annealing softening. 
 Uses: Used to withstand impact loads of wear certain pieces of surfacing, such as the boring machine by the grinding plate hob. 
 Chemical composition of deposited metal /% 
 C0.45-0.65 Cr4.5-5 Mo 2-3 V 4-5 
 Surfacing hardness HRC: ≥ 55