ENI 429 is a basic-coated electrode specifically developed for joining nickel-based alloys and similar materials designed to withstand high-temperature conditions. This electrode delivers excellent performance in welding heat-resistant austenitic materials and cast alloys. It is designed for use with nickel-based alloys such as 2.4663 (NiCr21Co12Mo), 2.4851 (NiCr23Fe), 1.4876 (X10 NiCrAlTi 32 20), and 1.4859 (GX 10 NiCrNb 32 20).The weld metal demonstrates outstanding performance under high-temperature conditions and is particularly suitable for service temperatures up to +1000°C. Additionally, it exhibits resistance to oxidizing and carburizing atmospheres at such temperatures, making it capable of resisting scaling up to +1100°C.ENI 429 provides excellent resistance to hot cracking, minimizing the risk of post-weld cracking. It is suitable for use in all welding positions and ensures a stable arc characteristic, producing a clean and smooth weld bead. Furthermore, its easily removable slag reduces labor time and enhances efficiency.This electrode is a reliable choice for welding industrial equipment operating under high-temperature and challenging environmental conditions, such as gas turbines and ethylene production plants. It is also widely used in chemical reactors and the petrochemical sector.Preheating before welding should be adjusted based on the base material type and thickness to reduce residual stress in the weld area and minimize the risk of cracking. Post-weld heat treatment requirements may vary depending on the application, but the weld metal of ENI 429 maintains high-temperature strength regardless of heat treatment.
ENI 425 is a Ni-Cr-Mo alloyed covered electrode that deposits weld metal with a composition of Ni-22Cr-9Mo-3.5Nb. It is specifically designed for welding highly corrosion-resistant Ni-Cr-Mo alloys such as Alloy 625, 825, and similar materials.This electrode demonstrates excellent toughness at cryogenic temperatures as low as -196°C, making it suitable for welding cryogenic nickel alloys, such as X1NiCrMoCuN25-20-7.The weld metal is resistant to oxidation up to 1200°C in sulfur-free atmospheres and can be used at service temperatures up to 500°C in sulfur-containing environments. It offers high resistance to stress corrosion cracking, pitting, and crevice corrosion in environments containing phosphoric acid, organic acids, seawater, and highly polluted conditions.The weld metal is insensitive to cracking and exhibits excellent resistance to thermal shocks. ENI 425 is used for joining dissimilar nickel alloys, welding dissimilar stainless steels, joining low-alloy steels to stainless steels or nickel alloys, and for buffering and cladding applications. It is also ideal for repair welding of these materials.
Basic coated electrode with Ni-Cr-Fe type nickel base deposit. Used for repairing and joining of nickel alloys, 5 - 9% Nickel steels, cryogenic stainless steels down to -196°C, Incoloy 800 and other high temperature steels. Provides a weld metal which has a operating temperatures from -196°C to 800°C. Used for joining dissimilar materials as stainless steels/low alloyed steels, stainless steels/Nickel alloys, buffering of difficult to weld steels. Weld metal deposit is insensitive to cracks, has very good resistance to acids, salts and alkaline solutions, molten salt (e.g. cyanide) in oxidizing and carburization atmospheres (avoid a sulphurous atmosphere). Generally used for welding on oven parts, burners, heat treatment equipment, cement works, moulds, transport and storage tanks of liquid gas. Has a wide range of application in chemical industry, petrochemical industry, glassworks, civil engineering, repairing and maintenance workshops.
Heavy coated, high recovery (170%) surfacing and hard surfacing electrode which gives Nickel-Chromium-Molibdenum alloy weld metal. Weld metal is resistant to abrasion, impact, corrosion and high temperatures. Especially used in welding of hot-work press tools which are subjected to above service conditions. Suitable to use inmaintenance welding of hot-work press tools and hammers, forging and extrusion dies and parts, pressure casting pistons and dies, rolling rolls, hot-stripping tools, pump rotors and valves. Preheating to 400-500°C is required, depending on the size, shape and chemical analysis of the part to be welded. Has a stable arc, smooth weld bead surface and weld metal is free of cracks and porosity. Welding shall be performed with short stick-out distance, perpendicular to base metal and craters shall be filled well. Preferred to use with DC, electrode in positive (+) and possible to use also in AC.
Electrode having monel core wire, designed for joining and surfacing welds of Monel-clad steels. Suitable for joining Monel alloys to steel; weld surfacing of steel with corrosion-resistant Monel coating. The weld metal is free of porosity and resistant to many chemicals. Suitable for applications with working temperatures from -196°C to 450°C. Weld groove preparation and cleaning should be done carefully. Generally welding should be done in horizontal position with short stick-out distance without weaving. Due to porosity risk of the weld metal, welding and striking shall be started on end plate. Possible to use with DCEP.