Nickel

OK Autrod NiCrMo-4 is a corrosion and heat resistant, nickel-chromium wire for submerged arc welding of high alloyed steel, heat resistant steel, corrosion resistant steel, 9Ni steels and similar steels with high notch toughness at low temperatures. OK Autrod NiCrMo-4 can be combined with OK Flux 10.99, OK Flux 10.90 or OK Flux 10.16.

Agglomerated aluminate-fluoride-basic flux for welding of 9% Ni steels and other high alloyed steels with Ni based wires. The flux is manganese adding, which reduces the risk of hot cracking. Good slag detachability and nice bead appearance.

Exaton Ni54 is a nickel-chrome-molybdenum alloy of type alloy C-22. It is a versatile alloy with excellent wet corrosion resistance in oxidizing and reducing media. It has better overall corrosion resistance than other Ni-Cr-Mo alloys such as alloy UNS N10276 (2.4819) and alloy UNS N06626 (2.4856). However, in severely reducing media alloy UNS N10276 is preferred where Exaton Ni56 is a better matching consumable. Exaton Ni54 are found in components for organic synthesis, wet chlorine gas, hypochlorite, chlorine dioxide atmosphere and ferric and cupric chloride environments. Typical applications for Exaton Ni54 are geothermal wells, HF furnace scrubbers, pesticide production, flue gas scrubber systems, combustion-resistant components for high pressure oxygen service electrolytic galvanizing, plate heat exchangers, phosphoric acid production phosphoric acid production, SO cooling towers and for weld overlays on valves. Exaton Ni54 is used for joining alloy UNS N06022 (2.4602) and is widely used as overmatching filler material for alloy UNS N10276 (2.4819) and other nickel-chrome-molybdenum alloys for better weld metal properties. Exaton Ni54 can also be used for dissimilar joining of stainless steels to nickel alloys.

Exaton 19.9.LR is a chromium-nickel covered electrode with acid rutile coating for welding of low carbon 18% Cr/10% Ni austenitic stainless steels. In cases where creep strength is of secondary importance Exaton 19.9.LR is suitable for welding stabilized austenitic steels, e.g. ASTM 321 and 347. When a weld metal similar to the parent metal is not required Exaton 19.9.LR can be used for welding ferritic and martensitic steels. The electrode has excellent arc stability, low spatter and fast burn off rate with minimal stub loss. It is also characterized by improved moisture resistance, self peeling slag, easy post weld finishing. Exaton 19.9.LR gives smooth uniform beads and works in any standard weld position.

OK NiCu 1 is a nickel-copper cored electrode of monel type for welding normal grades of cast iron such as gray-, ductile- and malleable irons. Deposition is done on cold or slightly preheated material. The weld metal is well machinable and provides a good colour match to that of cast iron.

Exaton Ni60 is a nickel-chromium-molybdenum strip electrode used for electro-slag welding (ESW) to deposit a second layer corrosion resistant alloy of Ni6625/UNS N06625 composition on carbon- and low alloyed steels. It can also be used as buffer layer before depositing second layers. Due to the low carbon content of the strip Exaton Ni60 is often used for single layer deposits when the required Fe content in the overlay is less than 10%. The grade is characterized by: – Excellent resistance to stress corrosion cracking in chlorides – Very good resistance to pitting and intergranular corrosion

Exaton Ni41Cu welding wire is suitable for overlay welding when a deposit with chemistry corresponding to UNS N08825 is required. The weld deposit is a nickel-iron-chromium-molybdenum-copper alloy suitable for use in corrosive environments. Exaton Ni41Cu can also be used for dissimilar joining of stainless steels to nickel alloys and plasma welding and overlay welding using hot wire TIG and mechanized TIG. 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 and gas and petrochemical industries and often in connection with sour gas service. Typical components are tanks, heat exchangers, evaporators, transport pipes and scrubbers etc.

A nickel-iron electrode for welding normal grades of cast iron and for joining them to steel. Can be used for malleable nodular cast iron and alloy cast iron. It has a special iron jacketed Ni core wire, which gives the electrode much improved current carrying capacity compared to electrodes with a homogeneous core wire. The electrode produces a weld metal stronger and more resistant to solidification cracking than the pure nickel electrode types. Typical applications are repair of pump bodies, heave machine sections, gear teeth, flanges and pulleys.

OK Flux 10.99 is a neutral agglomerated basic flux designed for the submerged arc welding process of austenitic stainless steels with relevant wires, either using AC or DC+ current. This flux can also be used in both current modes to weld Ni-based alloys with carefully chosen Ni-based wires. Welding in AC usually provides good mechanical properties and better impact properties (when compared to DC+ current). The high basicity of OK Flux 10.99 gives better impact values, regardless of the current being used. It also has very good weldability in 1G and 2G position; the slag is self-lifting or easily detached leaving clean and nice bead appearance.

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.