EXATON Ni56 NiCrMo-4 strip delivers weld deposits With the same AWS classification as electrode
November 23, 2021
ESAB has expanded its Exaton NiCrMo-4 filler metal product line with the introduction of Exaton Ni56 strip electrode for electro-slag cladding (ESW). This is nickel-chromium-molybdenum electrode is designed for corrosion resistant weld deposits of Ni6276/UNS N10276 type (“C-276”) and is ideal for chemical or petrochemical industries specifically to protect welded pipes made of low-alloy base materials. Exaton Ni56 is available as 60 x 0.5 mm strip. It is designed for use in combination with Exaton 69S flux, has a particularly high resistance to pitting and stress corrosion cracking of offers excellent slag removal and bead appearance.
“Exaton Ni56 strip has an SFA/AWS A5.14 EQNiCrMo-4 classification. Because of its restricted chemical composition, the weld deposit has an SFA/AWS A5.39 ESCLAD2-EQNiCrMo-4, preserving the metallurgical properties of the strip,” says Paolo Torchiana, Global Product Manager, ESAB. “Weld deposits make with Exaton Ni56 have lower carbon content in the weld metal compared to other products, which experience greater dilution.”
Cladding is required for critical applications in the pressure vessel, oil and gas, nuclear, and chemical processing industries. Exaton Ni56 has a weld deposit with a critical pitting corrosion temperature per ASTM G48-C at 70ºC. In the as-welded condition, deposits have a typical hardness of <230 HV10; after post-weld heat treatment (12 hours at 610ºC), it has a hardness of <250 HV10.
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Exaton Ni56 strip electrode for electro-slag cladding has an SFA/AWS A5.14 EQNiCrMo-4 classification. Because of its restricted chemical composition, the weld deposit preserving the metallurgical properties of the strip.