Exaton Ni56 (GTAW)

Exaton Ni56 (GTAW) is a low‑carbon nickel‑chrome‑molybdenum alloy filler metal (UNS N06022) designed for TIG welding of nickel‑chrome‑molybdenum alloys and dissimilar metal joining.

Key Features

• Excellent wet corrosion resistance in oxidizing and strongly reducing media.
• Provides high strength welds (540 MPa yield, 780 MPa tensile) with good elongation.
• Consistent chemistry and mechanical properties batch‑to‑batch.
• Suitable for aggressive environments such as chemical processing, pulp & paper, waste treatment, sour gas and high‑pressure oxygen service.

Specifications

• Classifications: SFA/AWS A5.14 ERNiCrMo‑4, EN ISO 18274 S Ni 6276, Werkstoffnummer ~2.4819
• Approvals: ABS ER NiCrMo‑4, DNV NV 5 Ni and NV 9Ni
• Alloy Type: Nickel (Ni + 16 % Cr + 16 % Mo + 3.7 % W + 5.9 % Fe + Low C)
• Shielding Gas: I1 (EN ISO 14175)
• Tensile Properties (As Welded): Yield 540 MPa, Tensile 780 MPa, Elongation 44 %
• Charpy Impact (As Welded): 240 J @ 20 °C, 175 J @ ‑110 °C, 170 J @ ‑196 °C
• Typical Wire Composition %: Ni 58, Cr 16, Mo 16, W 3.7, Fe 5.8, others trace

Applications

• Chemical processing equipment and corrosion‑resistant components.
• Pulp and paper bleaching vessels, flue‑gas scrubbers.
• Sour‑gas service, sulphuric acid coolers, chlorine/ hypochlorite environments.
• Cryogenic components, high‑pressure oxygen service.
• Dissimilar joining of nickel alloys, stainless steels and low‑alloy steels.