OPEN ARC HARDFACING WELDING WIRE Product description: C:4.5%, Cr:20.0-26.0, Mn:≤1.0%, Si:≤1.5%, Mo:≤1.0%, W:0.8%, V:0.8%, Nb:≤1.0%, Ni:≤1.0%, hardness:HRC60-65. LZ643 is a highly complex C-Cr-W-Nb-V-alloyed hardfacing welding wire, which has a very tough martensitic carbide micro structure. Its’ hardfacing deposit takes effect for sever abrasive wear under 600℃. Type LZ643 Welding Process Open arc Working tempeture Under 60......url:http://www.leigongtech.com