Exaton Ni72HP (GMAW)

Exaton Ni72HP is a high‑performance MIG wire filler material designed for joining NiCrFe alloys, 9% Ni steels for cryogenic service, and dissimilar stainless‑steel‑to‑nickel applications. It can be used in air up to 1175 °C and in sulphur‑dioxide atmospheres up to 800 °C.

Key Features

• Suitable for overlay welding with MIG/MAG, plasma, hot‑wire TIG and mechanized TIG
• Excellent corrosion resistance thanks to high Cr and Mo content
• Available in 0.8 mm, 1.0 mm, 1.2 mm, and 1.6 mm diameters
• Packaged in moisture‑resistant drums (20‑25 kg) for SAW applications

Specifications

• Classifications: SFA/AWS A5.14 ERNiCr‑3, EN ISO 18274 S Ni 6082 (NiCr20Mn3Nb)
• Approvals: VdTÜV 00073, VdTÜV 00515 (GTAW)
• Alloy Type: Nickel alloy with 20 % Cr, 3 % Mn, 2.5 % Nb
• Shielding Gas: I1, I3 (EN ISO 14175)
• Tensile (As Welded): Yield 420 MPa, Tensile 660 MPa, Elongation 35 %
• Typical Weld Metal Analysis (%): Ni 73, Cr 20, Mn 3.2, Nb 2.2, others trace
• Typical Wire Composition (%): Ni 73, Cr 20, Mn 3, Nb 2.5, others ≤0.1
• Wire Diameters & Parameters:
  • 0.8 mm → 40‑120 A, 15‑19 V, 4‑8 mm/min
  • 1.0 mm → 60‑220 A, 15‑28 V, 4‑12 mm/min
  • 1.2 mm → 150‑260 A, 24‑29 V, 3‑10 mm/min
  • 1.6 mm → 230‑350 A, 25‑30 V, 3‑5 mm/min

Applications

• Overlay welding of nickel‑chromium‑iron alloys
• Cryogenic service components made from 9 % Ni steels
• Dissimilar joins: stainless‑steel to nickel alloys, carbon‑steel to high‑temperature NiCu alloys
• Submerged Arc Welding (SAW) in heavy‑duty environments