D502 high-chromium steel welding electrodes Model: EDCr-A1-03 surfacing hardness HRC: ≥ 40 (after welding, air-cooled) 
 Description: High-chromium steel welding electrodes, welding metal is 1Cr13 high chromium martensitic steel, surfacing with air quenching nature, generally do not need heat treatment, uniform hardness, but also in the 750 ℃ ~ 850 ℃ annealed to soften, when heated to 900 ~ 1000 ℃, after air cooling or oil quenching, can be re-hardened, DC and AC welding technology is good, is a common surfacing electrode. 
 Uses: welding temperature below 450 ℃, carbon steel or alloy steel shaft and gates and so on.