OK NiFe-CI

OK NiFe-CI is a nickel‑iron stick electrode for welding normal grades of cast iron and for joining them to steel, including malleable nodular and alloy cast irons. It features a special iron‑jacketed Ni core wire for higher current capacity and produces a stronger, crack‑resistant weld metal.

Key Features

• Iron‑jacketed nickel core for improved current carrying capacity
• Basic special high‑graphite coating
• VacPac hermetically sealed packaging to protect from moisture
• Available in 2.5 × 300 mm, 3.2 × 350 mm and 4.0 × 350 mm diameters

Specifications

• Classifications: SFA/AWS A5.15 ENiFe-CI, EN ISO 1071 EC NiFe‑13
• Welding Current: AC, DC+
• Alloy Type: Ni‑Fe alloy
• Coating Type: Basic Special high graphite
• Minimum AC Open Circuit Voltage: 45 V
• Yield Strength (As Welded, ISO): 380 MPa
• Tensile Strength (As Welded, ISO): 560 MPa
• Typical Weld Metal Analysis (%): C 0.9, Mn 0.6, Si 0.5, Ni 53, Al 0.4, Cu 0.9, Fe 44
• Deposition Data (Diameter × Length, Amps, Volts, Efficiency, Fusion Time, Deposition Rate):
  • 2.5 × 300 mm: 60‑100 A, 22 V, 70 %, 45 s, 0.8 kg/h
  • 3.2 × 350 mm: 80‑150 A, 23 V, 70 %, 56 s, 1.2 kg/h
  • 4.0 × 350 mm: 100‑200 A, 23 V, 70 %, 59 s, 1.6 kg/h

Applications

• Repair of pump bodies, heavy machine sections, gear teeth, flanges and pulleys
• Welding of cast iron to steel
• Suitable for cryogenic, oil & gas and refinery‑maintenance applications