Basic covered, austenitic manganese steel electrode for wear resisting hardfacing deposits on high manganese (12-14%) steels. Weld metal will adopt high hardness by cold-working, it is therefore particularly suited for parts which are subjected mainly to wear caused by heavy impact and shock. During welding, the workpieces should not become too hot and if necessary, be allowed to cool down. When welding large workpieces made of austenitic manganese steel, such as crusher jaw plates, it is advisable to weld them in a water bath. Welding shall be done at low welding currents, with stringer and short bead lengths, to avoid the workpiece cool down. So, high welding currents and wide-weave beads must be avoided. When building up various layers, it is good practice depositing a buffer layer with EI 307 weld metal. When making joint welds on austenitic manganese steel, it is preferable to use EI 307B electrodes. Suitable for hardfacing and repair welding of wear resisting parts made of austenitic manganese steel, such as crusher jaw plates, crusher cones, rolls, pulverizing hammers, beating arms and others. Preferably used with DC, electrode in positive (+) pole and also possible to use with AC.
High recovery (120%), austenitic manganese steel electrode for hardfacing and joining of high manganese steels. Due to it excellent impact resistance, particularly suited for parts which are subjected to heavy impact, shock and cavitation. The addition of Ni and Cr alloys, increases the resistance against cracks and abrasion. Weld metal work hardens by cold-working. During welding, the workpieces should not become too hot and it shall be cool down, when necessary. High welding currents and wide-weave beads must be avoided. Machining is possible with tungsten carbide tipped tools. Suitable for hardfacing and repair welding of dredge pumps, hydraulic press pistons, crane wheels, rail crossings, crusher jaws, excavator and grab teeth, mill hammers, rock crusher.
High recovery (140%), austenitic manganese steel electrode for joining and hardfacing of high manganese steels which are subjected to very high pressure, shocks and abrasion. It is suitable to use as a buffer layer prior to hardfacing. Due to it is 12% Cr content, weld metal has high crack resistance and abrasion resistance with respect to other manganese steel electrodes. Weld metal work hardens by cold-working. Workpiece shall not become too hot during welding and when necessary, it shall be cool down before next hardfacing passes. High welding currents and wide-weave beads must be avoided. When welding large workpieces made of austenitic manganese steels, it is advisable to weld them in a water bath. Suitable for hardfacing and repair welding of dredge pumps, hydraulic press pistons, crane wheels, rail crossings, crusher parts subjected to impact of soft minerals.
Thick basic-covered electrode for producing hardfacing deposits of medium hardness, which can be machined by chip-forming. Particularly suited for wear resisting parts subjected to metal-to-metal wear, heavy impact and shock. EH 330 can be easily welded in all positions, except vertical-down. Weld metal is crack resistant and free of pores. suitable for reconditioning of rails, rail crossings, switch points, sprockets and wearing parts, such as rope pulleys, tumblers, rollers, caterpillar track rollers and links, wheel flanges, stud links and others. DC, electrode in positive (+) is preferred and possible to use also in AC.
Thick basic-covered electrode for producing highly wear resisting hardfacing deposits. It is particularly resistant to metal-to-metal wear, impact and shock. Suitable for reconditioning of rails, rail crossings and switch points, wearing parts such as dredger parts, polygon edges, bearing surfaces, striking tools, die tyres, wheel flanges, slide surfaces subject to heavy wear, reconditioning of lower dies, punches and others.Weld metal can be machined only by using sintered hard metal tipped tools. Even a large number of layers can be deposited without the need of intermediate buffer layers. A tough buffer layer using ESB 40 or EI 307B electrodes is solely required in case of very crack sensitive base metal. EH 340 can be welded in all positions, except vertical-down. Preferred to use with DC, electrode in positive (+) pole and also possible to use with AC.
Thick basic-covered electrode for producing wear resisting hardfacing deposits, which is particularly resistant to metal-to-metal wear, impact and abrasion. Suitable for reconditioning of rails, rail crossings and switch points, wearing parts such as dredger parts, polygon edges, bearing surfaces, striking tools, die tyres, wheel flanges, slide surfaces subject to heavy wear, reconditioning of lower dies, punches, cutting blades, table and rolling rolls. Weld metal can be machined only by using sintered hard metal tipped tools. A tough buffer layer using ESB 40 or EI 307B electrodes is solely required in case of very crack sensitive base metal. Can be welded in all positions, except vertical-down. Preferred to use with DC, electrode in positive (+) pole and also possible to use with AC.
Thick rutile-covered electrode for depositing tough and wear resisting hardfacing overlays. It is particularly resistant to high metal-to-metal wear, moderate impact and abrasion. The weld metal has sufficient red hardness up to 600°C. It is machinable only by grinding. Suitable hardfacing applications where wear resistance at higher temperatures is a prime concern, as in hot cut offs, dies for pressure castings, rolls, crushers excavator parts, bucket edges and bucket teeth, drilling bits, coal planes, conveyor screws. In case of crack sensitive base metals, a tough buffer layer made by ESB 40 or EI 307B electrodes, is required and a further one after every third hardfacing layer. The as-welded hardness of 59 HRc can be increased to 60-65 HRc by single or double tempering. Possible to use equally well both with AC and DC.
Thick basic-covered electrode for depositing tough and wear resisting overlays on structural members, subjected to severe wear. It is particularly resistant to high metal-to-metal wear, moderate impact and abrasion. The weld metal has sufficient red hardness up to 600°C. It can be machined only by grinding. Suitable hardfacing applications where wear resistance at higher temperatures is a prime concern, as in hot cut offs, dies for pressure castings, rolls, crushers excavator parts, bucket edges and bucket teeth, drilling bits, coal planes, conveyor screws. Multi-layers deposits will be free of cracks, even without depositing intermediate buffer layers. Only in case of very crack sensitive base metals, a tough buffer layer, made with ESB 40 or EI 307B electrodes, is required. Preferred to use with DC, electrode in positive (+) pole and also possible to use with AC.
Thick basic-covered electrode for depositing wear resisting overlays on structural members subjected to severe abrasive wear. Weld metal can be machined only by grinding. Suitable for hardfacing applications of crushing and grinding of coal, mineral, soil, rocks, excavator parts, bucket edges and bucket teeth, drilling bits, coal planes, conveyor screws. In case of very crack sensitive base metals, a tough buffer layer, made with ESB 40 or EI 307B electrodes, is required, before hardfacing. Preferred to use with DC, electrode in positive (+) pole and also possible to use with AC.
Hardfacing electrode for manufacturing and repair welding of turning and plaining chisels, reaming and shear blades, special spiral drills. Also suitable for manufacturing tools from unalloyed and low alloy steels and hardfacing the edges of cutting tools made of tool steel. Unalloyed and low alloy steels shall be preheated to 250-400°C before welding and postweld heat treatment at 400°C and then welded parts shall be cooled slowly. If buffer layer is needed, can be performed by EI 312 or EI 307B electrodes (max. 2,5 mm) and then hardfacing can be performed by EH 380 (max. 5 mm in heigth). Possible to use with DC, electrode in positive (+) pole and with AC.