Fe-05 I-type hardfacing electrodes (high-carbon high-chromium alloy welding electrodes) Uses: The electrode can be surfacing in the low, medium carbon steel, low-alloy steel (such as A3, Mn13,16Mn, 65Mn) , but also on some gray cast iron used to be widely used in coal, chemicals, building materials and machinery industry, brick machine reamer, playing on clay tablets and other manufacturing and repair of wear parts. Single-channel Surfacing layer hardness: HRC≥60 Process: SMAW, DC reverse, AC and DC. Welding current: AC: 170-200A, DC: 160-180A, surfacing dilution ratio ≤50%. Fe-05Ⅱ type electrode Uses: The electrode can be both AC and DC welding metal with high hardness and wear resistance, good crack resistance, in brick, tile, cement, glass, ceramics and other industries hammer and by the impact of the various parts of the surfacing repair. Surfacing layer hardness: HRC55 ~ 58, process: SMAW, AC and DC. Fe-05Ⅲ type electrode of the electrode is a low hydrogen sodium type coating of chromium molybdenum vanadium type electrode, A and M mixed body tissue, hard and tough welded condition excellent crack resistance, DC reverse, mainly used by the severe impact wear parts surfacing. And has impact resistance, heat resistance, wear resistance. And subject to sand abrasion and cavitation damage to irrigation machinery, dredging bucket, rubber and plastic machinery, mining machinery parts, etc., surfacing layer without cracks. Surfacing layer hardness: HRC50 ~ 55.