Welding of low alloy CrMo pearlitic steels, such as 12CrMo etc, working temperature of which is below 510ºC .Features: 1) Welding temperature is lower than 300 degrees 2) Chemical composition of deposited metal: C<=0.12 Mn=0.5-0.9 Si<=0.5 S<=0.035 P<=0.035 Cr=0.4-0.65 Mo=0.4-0.65 V - 3)Heat-resistant-Steel-Electrode Inner packing: 1) 2.5mm x 300mm, 1-5kg/inner box + plastic bag 2) 3.2mm x 350mm, 1-5kg/inner box + plastic bag 3) 4.0mm x 350mm, 1-5kg/inner box + plastic bag