D802 Cobalt Hardfacing Electrodes 

 Model: EDCoCr-A-03 

 Description: cobalt chromium tungsten alloy cobalt-based hardfacing welding rod core, the use of DCRP, deposited metal work at 650 ℃ can maintain good wear resistance and corrosion resistance. 

 Use: about 650 ℃ work can still maintain good wear resistance and corrosion resistance of the occasion, or to withstand shocks and hot and cold cross the site, such as the welding temperature and high pressure valves and thermal cutting edge and so on. 

 Chemical composition of deposited metal /% 

 C 0.7-1.44 Si ≤ 2 Mn ≤ 2 Cr 25-32 Fe ≤ 4 W 3-6 margin for the Co ≤ 4 other surfacing hardness of HRC: ≥ 40 





 D812 Cobalt Hardfacing Electrodes 

 Model: EDCoCr-B-03 

 Description: cobalt chromium tungsten alloy cobalt-based hardfacing welding rod core, the use of DCRP, deposited metal work at 650 ℃ can maintain good wear resistance and corrosion resistance. 

 Application: high temperature and pressure valves, high pressure pump shaft sleeve and inner sleeve and the blade cut fiber port and other equipment. Chemical composition of deposited metal /% 

 C 1-1.7 Si ≤ 2 Mn ≤ 2 Cr 25-32 Fe ≤ 5 W 7-10 ≤ 4 margin for the other Co 

 Surfacing hardness HRC: ≥ 44 





 D822 Cobalt Hardfacing Electrodes 

 Model: EDCoCr-C-03 

 Description: The high-carbon cobalt-chromium alloy welded tungsten welding electrode core cobalt-based, using DC reverse, slag coverage is good, beautiful appearance, with excellent wear resistance, heat resistance, corrosion resistance, high temperature at 650 ℃ can be maintained these characteristics. 

 Uses: cone bit bearing, rotating impeller boilers, mill edge, wear parts such as screw feeder surfacing. 

 Chemical composition of deposited metal /% 

 C 1.75-3 Si ≤ 2 Mn ≤ 2 Cr 25-33 Fe ≤ 5 W 11-19 margin for the Co ≤ 4 other surfacing hardness of HRC: ≥ 53 





 D842 Cobalt Hardfacing Electrodes 

 Model: EDCoCr-D-03 

 Description: 4 low-carbon cobalt-based cobalt chromium tungsten alloy core welding electrode welding, the use of DCRP, deposited metal can be maintained even at 800 ℃, thermal fatigue and corrosion resistance. 

 Uses: Used to withstand impact and high temperature conditions, hot and cold welding parts staggered, such as hot forging die, the valve sealing surface, with good performance. 

 Chemical composition of deposited metal /% 

 C 0.5-0.5 Si ≤ 2 Mn ≤ 2 Cr 23-32 Fe ≤ 5 W ≤ 9.5 ≤ 7 margin for the other Co surfacing hardness of HRC :28-35 





 D852 Cobalt Hardfacing Electrodes Type: EDCoCr-E-04 

 Description: wear welding electrodes for high temperature, the working temperature 1100 ℃, with the red hardness, strong resistance. Also be used for high temperature, high pressure valves and other hot leg model, while subjected to impact and high temperature, corrosion resistant components. HRC ≥ 44 





 D862 Cobalt Hardfacing Electrodes Type: EDCoCr-E-05 

 Description: suitable for high temperature wear and fine grinding of small-angle erosion conditions. Single-layer surfacing to meet the performance requirements, the maximum operating temperature 1000 ℃, surfacing layer hardness: 20 ℃ - HRC :64-66, working temperature 600 ℃ - HRC :48-52, working temperature 800 ℃ - HRC :38-42 Typical application areas, and some conditions, iron, coke, clean burning, high-temperature cement and other areas of work wear and tear of machinery and equipment there. 

 Uses: serving under the high temperature part for welding clean burning crown single roll crusher and blast furnace grate rotary distribution chute, wear results are obvious.