D237 chrome molybdenum vanadium steel welding electrodes Model: EDPCrMoV-A1-15 
 Description: chrome molybdenum vanadium steel welding electrodes, the use of DCRP. 
 Uses: Used to weld by sand abrasion and cavitation damage to hydraulic machinery, excavator bucket, mining machinery parts. 
 Chemical composition of deposited metal /% 
 C 0.3-0.6 Cr 8-10 Mo ≤ 3 V 0.5-1 
 Surfacing hardness HRC: ≥ 50 

 D246 hardfacing electrode Model: EDPCrSi-B 
 Description: D246 hardfacing electrodes, AC and DC. 
 Uses: room temperature for welding and non-corrosion conditions, with conditions of abrasive wear and impact loading of components, such as mining, engineering, agriculture, brick, cement, water and other machinery wear parts. 
 Chemical composition of deposited metal /% 
 C ≤ 1 Si 1.5-3 Mn ≤ 0.8 Cr 6.5-8.5 B 0.5-0.9 
 Surfacing hardness HRC: ≥ 60 

 D256 high manganese steel surfacing electrode Model: EDMn-A-16 
 Description: high manganese steel surfacing electrode, AC DC (AC welding load voltage space of not less than 70V), welding should be used when a small current, narrow channel bonding, while hammering the red hot or water immediately to reduce the crack tendency. Surfacing metal is austenitic high manganese steel, with hardening, high toughness and wear resistance characteristics. 
 Use: crusher, high-manganese rails, digger, bulldozer and other wear parts for welding. 
 Chemical composition of deposited metal /% 
 C ≤ 1.1 Si ≤ 1.3 Mn 11-16 other ≤ 5 
 Surfacing hardness HRC: HB ≥ 170 

 D266 high manganese steel surfacing electrode Model: EDMn-B-16 
 Description: high manganese steel surfacing electrode, AC DC (AC welding load voltage space of not less than 70V), and the D256 is the difference in the weld metal molybdenum added to improve the crack resistance and wear resistance. Surfacing should be used when a small current, narrow channel bonding, while hammering the red hot or water immediately to reduce the cracking tendency. Surfacing metal is austenitic high manganese steel, with hardening, high toughness and wear resistance characteristics. 
 Use: crusher, high-manganese rails, digger, bulldozer and other wear parts for welding. 
 Chemical composition of deposited metal: 
 C ≤ 1.1 Si 0.3-1.3 Mn 11-18 Mo ≤ 2.5 ≤ 1 other 
 Surfacing hardness HRC: HB ≥ 170 

 D276/D277 corrosion at high chromium manganese steel surfacing electrode models: EDCrMn-B-16/EDCrMn-B-15 
 Description: The cavitation resistance of high chromium manganese steel surfacing electrode, the use of DCRP, D276 may be AC ??and DC (AC welding load voltage space of not less than 70V), the weld can be hardening, toughness, and resistance to cavitation, with good crack resistance. 
 Uses: bullied for welding corrosion damage of turbine parts, such as turbine blades, hydraulic conductivity, wear resistance and can also be used to require high toughness of high manganese steel surfacing, such as railway switches, screw conveyor, bulldozer blade plate , grab, broken blade and so on. 
 Chemical composition of deposited metal 
 C ≤ 0.8 Si ≤ 0.8 Mn 11-16 Cr 13-17 other ≤ 4 
 Surfacing hardness HRC: ≥ 20 

 D287 cavitation resistance to sand abrasion resistant special electrodes 
 Description: The anti-cavitation-resistant special electrodes sand abrasion, has good resistance to cavitation, resistance to sand abrasion performance, good welding process, using DC reverse, can be all-position welding, welding metal has good machinability. 
 Uses: pump, turbine flow parts of the manufacturing and welding repair, the same material can also be used for welding wheel. 
 Chemical composition of deposited metal 
 C ≤ 0.15 Cr 12-16 Ni 4-6 
 Surfacing hardness HRC: HV400 (welded) 

 D406 hardfacing electrode Model: EDRCrMnMoWCo-A 
 Note: Cr-Mo heat resistant steel tungsten hardfacing electrode, deposited metal solid solution for the a + martensite + austenite + eutectic with high red hardware, crack resistance and thermal fatigue resistance. 
 Application: high temperature and cutting tools, mold, such as thermal cutting edge of surfacing. 
 Chemical composition of deposited metal /% 
 C ≤ 0.5 Si ≤ 2 Mn ≤ 2 Cr ≤ 6 Mo ≤ 5 W ≤ 10 V ≤ 2 Co ≤ 12 ≤ 2 others 
 Surfacing hardness HRC: ≈ 50 (air cooled after welding) 

 D417 High Speed ??Tool Steel Welding Rod Model: EDD-B-15 
 Description: High speed tool steel welding electrodes, DC reverse, good process, abrasion resistance and crack resistance. 
 Use: strong impact wear resistance welding, corrosion, cavitation of the occasion, such as single and double teeth roll crusher, blades, blast furnace bell, also used for surfacing a variety of stamping dies. 
 Chemical composition of deposited metal /% 
 C0.5-0.9 Si ≤ 0.8 Mn ≤ 0.6 Cr 3-5 Mo 5-9.5 W 1-2.5 V 0.8-1.3 ≤ 1 other 
 Surfacing hardness HRC: ≥ 55 (after welding, air-cooled) 

 D427 high temperature wear resistant surfacing electrode 
 Description: High temperature wear resistant surfacing electrode, low hydrogen sodium type coating. 
 Usage: for high temperature conditions, high hardness and wear resistance welding components, such as rolled steel, steel billet loader crane shearing teeth and cut with a tough bi-metal thermal welding. 
 Chemical composition of deposited metal /% 
 C ≈ 0.8 Mn ≈ 13 Cr ≈ 11 Ni ≈ 2 V ≈ 2 
 Surfacing hardness HRC: ≥ 40 (after welding, air-cooled) 

 D437 surfacing electrode 
 Description: welding electrodes, low hydrogen sodium type coating. 
 Usage: for high temperature conditions, with high hardness and high wear-resistant surfacing parts, mainly for metallurgical systems, such as steel mills and rolling mill equipment presses hanging tooth bi-metal thermal cut edge welding. 
 Chemical composition of deposited metal /% 
 C ≈ 0.8 Cr ≈ 15 Ni ≈ 4 V ≈ 3 
 Surfacing hardness HRC: 40 ≈ 42 (air cooled after welding)