Nickel

An all position basic coated electrode depositing a nickel chromium based alloy with additions of molybdenum, tungsten and niobium. The electrode is especially designed for welding of 9% nickel steels for cryogenic applications down to -196°C. Typical application is land based LNG tanks.

Rutile coated electrode for welding 19Cr10Ni -type steels. Also suitable for welding stabilized steels of similar composition, except when the full creep resistance of the base material is to be met. The electrode is especially designed for welding of thin walled pipes. It can be used in all positions including vertical down.

Exaton Ni41Cu welding wire is suitable for overlay welding when a deposit with chemistry corresponding to UNS N08825 is required, i.e nickel-iron-chromium-molybdenum-copper. Exaton Ni41Cu has very good resistance to stress corrosion cracking (SCC) in chloride containing environments and is particularly suited for use in reducing environments such as those containing sulphuric and phosphoric acids. Exaton Ni41Cu is used for corrosion resistant alloy surfacing of components in the chemical, pollution control, oil & gas and petrochemical industries and often in connection with sour gas service, typically tanks, heat exchangers, evaporators, transport pipes and scrubbers.

Exaton Ni56 is a low carbon nickel-chrome-molybdenum alloy of type alloy C-276. It is a versatile alloy with excellent wet corrosion resistance in oxidizing and especially in reducing media. However, in oxidizing chloride containing environments alloy UNS N06022 (2.4602) is preferred where Exaton Ni56 is a better matching welding consumable. Applications for Exaton Ni56 are found in aggressively corrosive media such as chemical processing plants, pollution control, pulp and paper production, waste treatment and for the recovery of sour natural gas. Exaton Ni56 is used for joining and overlay welding with MIG/MAG, plasma and hot wire TIG and mechanized TIG. Typical alloys are UNS N10276 (2.4819) and other nickel-chrome-molybdenum alloys. It can also be used for dissimilar metal joining of nickel alloys, stainless steels and low-alloy steels. Applications for Exaton Ni56 are found in cryogenics, components in pulp and paper plants such as bleaching vessels, flue gas scrubber systems, components in sour-gas service, sulphuric acid coolers, chlorine gas, hypochlorite and chlorine dioxide atmosphere. Exaton Ni56 is also used in combustion-resistant components for high pressure oxygen service.

Exaton Ni55 is a nickel-chrome-molybdenum alloy of type alloy 686 and is the highest alloyed of all Ni-Cr-Mo alloys. Exaton Ni55 is used for joining nickel alloy such as UNS N06022 (2.4602), UNS N06059 (2.4605), UNS N10276 (2.4819) and super duplex. The material is thermally unstable at temperatures above 1200°C (2192°F) resulting in great risk for intermetallic phases after welding. Exaton Ni55 provides the best corrosion resistance in most applications and is particularly useful for weld overlay surfacing of boiler tubes in waste-to-energy boilers. Also, the material can be used in the petrochemical, chemical, oil and gas and marine industries. Exaton Ni55 can also be used for dissimilar joining of stainless steels to nickel alloys, for overlay welding and it is used for MIG/MAG welding as well as hot wire TIG and mechanical TIG.

Exaton Ni71 is a covered electrode with basic coating and a normal metal recovery for welding of NiCrFe alloys such as Alloy 600, 800 and 800H. 9%Ni steels as well as nickel-alloyed steels for cryogenic temperature use. It is also used for dissimilar joints such as stainless steel and NiCu alloys to carbon steel and nickel alloys. Exaton Ni71 is characterised by little spatter and very good slag removal. Typical applications are found in constructions to be used at lower temperatures e.g. 3.5%, 5% and 9% Ni steels are used as well as austenitic Cr-Ni stainless steel, especially if the weld metal is to be thermoformed or stress relieved. The alloy can be used in air up to 1200°C (2150°F), in sulphur dioxide atmospheres up to 800°C (1470°F) and in ammonia at the highest process temperature. This alloy is used for surfacing or joining where there are strict requirements on stress corrosion resistance and for high temperature service. The microstructure is fully austenitic.

Exaton Ni53 is a nickel-chrome-cobalt-molybdenum alloy of type alloy 617. It has an excellent resistance to high temperature corrosion such as oxidation and carburization. The weld metal provides a combination of excellent metallurgical stability and strength in short and long term exposure to temperatures up to 1100°C (2012°F). Applications for Exaton Ni53 are found in high temperature heat exchangers and valves, furnace tubing in the petrochemical industry, radiant heat tubes, gas turbines, components subjected to high temperatures in the chemical processing industry and components for power plants. Exaton Ni53 is suitable for joining heat resistant nickel alloys, heat resistant austenitic and cast alloys such as: – UNS N08810 (1.4958) – UNS N08811 (1.4959) – UNS N06617 (2.4663) Exaton Ni53 can also be used for dissimilar joining of stainless steels to nickel alloys and for overlay welding.

Basic, agglomerated flux for butt welding of stainless steels. A suitable flux for welding of high alloyed CrNi-steels like e.g. duplex stainless steel. It can also be combined with NiCrMo-3 and NiCrMo-4 wires. The low Si addition during welding provides good mechanical properties in the weld metal.

High basic, all mineral, agglomerated flux designed for welding nickel and nickel based alloys. The flux is particularly suitable for strip cladding with Ni-based strip. The silicon transfer from the flux to the weld metal is strongly reduced by the well balanced flux composition and thus minimizing the risk for hot cracking in welding Ni-based alloys.

Exaton 79S is a newly designed highly basic, agglomerated flux for electroslag strip cladding delivering excellent slag removal and bead appearance. Flux Exaton 79S is recommended for the usage with Nb-bearing strip electrodes of nickel alloy type, such as EQNiCr-3 and EQNiCrMo-3 or similar.