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Characteristics and Applications : General Purpose all positional rutile coated electrode for mild steel. An ideal and versatile electrode for all types of fabrications and general engineering works. It also finds suitability in areas such as ship building, wagon building, tanks etc. Excellent deposition rate with good mechanical properties. Slag is self-releasing. Electrode has good restriking qualities. Can be used with both AC and DC supply. Works well on low O.C.V. transformer. For base metals such as ST 34-ST 52; boiler plates HI - H III, 17 Mn 4. Weld metal is of radiagraphic quality.
An Extra low hydrogen, radiographic quality, medium heavy coated, iron powder type electrode that is highly resistant to hydrogen - induced embrittlement. Specially recommended for high strength welds on mild steels, medium carbon and low alloy high strength steels. Deposition efficiency above 110%. Used on a variety of steels providing unique hydrogen - free deposits with superior impact resistance at normal and sub-zero temperatures. Recommended applications include critical pressure vessels, high-pressure piping, blast furnace steel work, heavy welded fabrication as replacement for castings, penstocks, bridges, atomic reactor shell, overhead cranes, steel gears, loco frames, etc.
High arc force for deep penetration and cutting action. Ideal for piercing and cutting all metals by the electric arc process and for removing Runners & Risers in foundry. The electrode strikes arc easily and achieves clean cuts even on thicker materials. The arc force is excellent and operates at high currents without getting over heated.Instructions:
Set up the work piece so that molten metal can run off easily. It is advisable to execute an up and down sawing movement, pushing the molten metal away with the electrode.
A heavy coated electrode for chamfering and grooving with electric arc. No compressed air or oxygen needed. It is a highly heat resistant electrode with exothermic coating. Arc force is concentrated right at the point of application, yielding an efficient metal removing tool.Applications:
To be used for preparing V section prior to welding, for removing old fatigued and unwanted metal prior to final machine operation. Suitable for both ferrous and non-ferrous metals, wear plates, removing / cutting of flash and risers,
35 R is a rutile coated air hardening type electrode for hardfacing application on mild steel, carbon steel and low alloy steels. The weld deposit can give hardness upto 350 BHN and is highly resistant to abrasive wear with good toughness properties. Soft and stable arc, smooth and regular weld head profile, easy slag detachability are characteristics of this electrode. Weld metal can be machined with a carbide tool. For hardfacing and building up of shear blades, brake shoes, crane wheels, cams, gears, shafts, plough shares, coveyor parts, rail ends and crossing, pulley and axles, cog wheels, couplings, crawler parts end, pinion teeth. Instructions: Use short arc and minimum current while welding. Keep electrode dry. Hardness increases with multilayers but limit to 2-3 layers. Before depositing on carbon steel, a buffer layer of EKNOWELD 7018 is recommended.
A medium coated low hydrogen air hardening type specially designed for hardfacing and building up of worn out machine parts which are subjected to severe service conditions involving a combination of impact and abrasion. Soft steady arc, smooth, uniform bead profile and easy slag detachability. For surfacing / rebuilding of mill hammers for pulverising coal, disintegrator hammers in Iron Ore Mines, earth moving equipment parts, hot and cold punching dies, agricultural machinery, bamboo chipper knives, cane cutting knives, mill knives, shear blades, impellers, jaw crushers, tractor grousers, rollers rock drills, etc.Instructions:
Keep the electrode dry. use short arc and low welding speed. Employ short stringer beads. Preheating may be required for multilayer welding. A buffer layer of EKNOWELD 7018 on carbon steels and EKNOWELD -18/8/6(S) on stainless steels, is necessary for austenitic manganese steel. Deposit can only be ground finished.
An all positional electrode depositing weld metal consisting of nickel-iron alloy. Deposits yield greater bond strength and ductility. Welds are highly crack-resistant and free from porosity. Machinability is excellent. Specially recommended for heavy work pieces and at places where stresses occur. Ideally suited for joining and repair welding of ferritic and pearlitic high-strength spheroidal-graphitic cast irons and for welding these types to other ferrous and non-ferrous materials (cast steel, alloy cast iron and dirty or oily cast iron)Instructions:
Casting skin of parent material must be removed over sufficient width. Hold vertically, short arc and minimum current. Direct arc to the weld pool, Employ short stringer beads. Peen weld while hot. Reignite on the weld metal only.
An all positional extra low carbon electrode with controlled ferrite for maximum resistance to intergranular corrosion and cracking. Weld can withstand elevated temperature upto 850 C and highly creep-resistant. Can be used on low-temperature steels as low as - 150 C. Carbon content as low as 0.03% eliminates possibility of inter crystalline corrosion in the temperature range of 500 to 850 C. Weld beads are smooth, uniform and of excellent appearance. For welding of 18/8 stainless steels represented by AISI types 301, 302, 304L & 308L which have low carbon content and BS grades En 50, En 58A, En 58E. Used widely in dairy, chemical and food industries.
An all positional radiographic quality electrode giving 25/12 deposit that has high oxidation & corrosion resistance and can withstand elevated temperatures upto 1100°C in continuous service. Low spatter & smooth weld beads with easy slag detachability. For welding AISI309 type straight chrome steels. Joining stainless steel to lower alloy and carbon steels. Building up and overlaying mild steel to increase wear resistance and worn out parts of wear resisting steels.Welding Instructions:
Keep electrode dry. Ensure good fit-up on joints and hold short arc while welding. Adopt proper sequence. Do not use excessive current. Use stainless steel wire brush for cleaning.
An all positional, radiographic quality extra low carbon 18/13 Mo stainless steel electrode with controlled ferrite content for maximum resistance to stress, chemical corrosion and hot cracking. Can withstand elevated temperature upto 850 C and has excellent creep resistance. Molybdenum enables to resist corrosive agent of reducing nature. For welding AISI316L and 317L types, stainless steel clad plates, chemical plants and dye-industries.
An all positional designed for welding straight chrome martensitic steels and castings. Also for antiwear coatings on a wide variety of components. Weld deposit had good corrosion, erosion and abrasion resisting properties. Also resistant to scaling and oxidation upto 600°C. Ideally suited for surfacing carbon steels, valves, low alloy steels, heat treatable steels.etc., that are subjected to wear. Designed for 13% Cr type steels. Pre-heating of this type of steel upto 350°C is recommended. For German steels 4001,4006,4008,4021,4024,4027 and 4107. Welding Instructions: Similar to EKNOWELD 309-16