Packaging: 5 kg / box, 20 kg / carton Name: Stellite 12 D812 Cobalt Hardfacing Electrodes Standard: GB/T984 EDCoCr-B-03 AWS A5.13 ECoCr-B Description: Stellite12 is produced by continuous casting cobalt-chromium-tungsten core solder alloy rod is coated with titanium calcium type of welding electrodes. Dual cross tributaries, should adopt the DC reverse, then the positive electrode, arc stability, slag coverage is good and beautiful shape. Surfacing layer has good wear resistance, heat and corrosion resistance. To a high temperature 800 ℃, but also to maintain good characteristics. Stellite12 cobalt-based alloys, although with only moderate hardness, but contain high tungsten content, so the strong performance of high temperature abrasive wear. Surfacing layer can be machined, microstructure containing chromium tungsten, chromium solid solution and solid solution of tungsten carbide eutectic composite. Uses: For high temperature and pressure valves, the engine valves, carpet layer, plastic, paper and chemical industries as well as a variety of cutting edge thermal surfacing finishing pass. Surfacing hardness: HRC ≥ 44 license: XK06-009-00060 Brand: Stellite manufacturers: Kenner Stellite metal (Shanghai) Co., Ltd. Note: 1, before welding electrodes shall be subject to about 150 ℃ bake for 1 hour. 2, should adopt a small current, short-arc welding, in order to avoid the increase of the base material penetration, reduced performance surfacing alloy. 3, depending on the type and size of the base material of the workpiece, the preheat temperature of 350-500 ℃ select the temperature and the layer 350 ℃ surfacing. 4, according to the working conditions generally choose 600-750 ℃, slow cooling in the furnace heat for 1-2 hours, or after drying and preheating the workpiece into the sand tank or kelp in slow cooling.