Exaton Ni71

Exaton Ni71 is a covered stick electrode with a basic coating, designed for welding nickel‑chromium‑iron alloys such as Alloy 600, 800, 800H and 9 % Ni steels. It offers low spatter, excellent slag removal, and high corrosion resistance for high‑temperature and cryogenic applications.

Key Features

• Basic coating with normal metal recovery
• Low spatter and easy slag removal
• Suitable for dissimilar joints (stainless steel, NiCu alloys to carbon steel)
• Performs up to 1200 °C in air, 800 °C in SO₂, and high temperatures in ammonia
• Available in 20‑25 kg drums with moisture‑resistant packaging

Specifications

• Classification: SFA/AWS A5.11 ENiCrFe‑3, EN ISO 14172 E Ni 6182 (NiCr15Fe6Mn)
• Welding current: DC+
• Alloy type: Ni‑based Cr alloy
• Coating type: Basic
• Tensile yield strength (PWHT 610 °C 16 h): 400 MPa
• Tensile strength (PWHT 610 °C 16 h): 635 MPa
• Elongation: 50 %
• Charpy impact @ 20 °C: 100 J
• Charpy impact @ –196 °C: 60 J
• Typical weld metal composition (wt %): Ni 67, Cr 16, Mn 5.7, Si 0.3, C ≤0.03, S ≤0.010, P ≤0.015, Mo 0.005, Al 0.009, Cu 0, Nb 2.2, Ti 0.08, Others ≤0.50, Fe ≤10
• Deposition data (diameter × length, amps, efficiency, fusion time, rate):
  • 2.5 × 300 mm, 50‑70 A, 0.65 %, 58 s, 0.7 kg/h
  • 3.2 × 350 mm, 65‑105 A, 0.61 %, 68 s, 1.14 kg/h
  • 4.0 × 350 mm, 75‑150 A, —, —, 0.0 kg/h

Applications

• Welding of NiCrFe alloys and 9 % Ni steels for lower‑temperature service
• Austenitic Cr‑Ni stainless steel welds requiring thermo‑forming or stress‑relief
• High‑temperature components up to 1200 °C
• Cryogenic applications using 3.5 %‑9 % Ni steels
• Surfacing and cladding where stress corrosion resistance is critical