D50 wear-resistant alloy welding electrode: This electrode is a newly developed in recent years, no residue Cr-Si-Mo-B system high network abrasive wear of cast iron-type surface electrode wear. With C2.5-3.5%, Cr16-20%, Si ≤ 3%, Mo1.0-1.5%, B0.5-1.5%, to withstand low, medium impact, strong abrasion resistance, hardness after welding HRC ≥ 65. Can increase the wear life 3-10 times. May be surfacing in the low, medium carbon steel, low alloy steel, high manganese steel and cast steel parts surface.