D256 high manganese steel wear resistance, impact resistance welding electrodes D256 surfacing electrode Model GB EDMn-A-16 cladding layer hardness: HB≥170 D256 hardfacing electrode is a low hydrogen potassium type coating of high manganese steel welding electrodes , AC and DC (AC welding, the no-load voltage is not less than 70V), surfacing should be used when a small current, narrow weld, while hammering the red hot or water quenched immediately to reduce the crack tendency. Surfacing metal is austenitic high manganese steel, with hardening, tough and wear-resistant characteristics. Uses: Suitable for easy wear parts of the surfacing of various crushers, high manganese steel rail, fighting, bulldozers and the like. Deposited metal chemical composition (%) C≤1.10 Mn11.0 ~ 16.0 Si ≤1.30 Mo - other elements of the total ≤5.00 Reference current (AC, DC +) Electrode Diameter (mm) φ3.2: 70 ~ 90 φ4.0: 100 ~ 140 φ5.0: 150 ~ 180 Note: 1. 300-350 ℃ before welding electrodes shall be baked 1h. High manganese steel workpiece 2. surfacing worn, prior fatigue level should eliminate or toughening treatment with water or primed with chrome manganese steel electrode (eg D277). 3. surfacing large yellow smoke, should pay attention to increase ventilation and to stand upwind of operation. Hang Kejin Ge company welding products: wear, welding electrodes, tungsten electrode, stainless steel electrodes, cast iron welding rod, casting WC gas welding rod, high temperature electrode wear, impact resistance welding electrodes and so on. Our products are of good quality and reasonable price, won the trust and praise. Customers across the country and exported to many countries. D256 high manganese steel wear resistance, impact resistance welding electrodes