OK Autrod 19.40

OK Autrod 19.40 is a continuous solid copper MIG wire alloyed with 8 % aluminum, designed for high‑strength welds on aluminium bronzes, un‑ and low‑alloyed steels, and for MIG brazing of galvanized steel in automotive body production.

Key Features

• Alloyed copper (Cu + 8 % Al) for high strength, wear resistance and excellent seawater corrosion resistance
• Suitable for aluminium bronzes, low‑alloy steels and MIG brazing of galvanized steel
• Available in multiple diameters (0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm)
• Compatible with common shielding gases (I1, I2, I3, M13)

Specifications

• Classifications: SFA/AWS A5.7 : ERCuAl‑A1, EN ISO 24373 : S Cu 6100 (CuAl7)
• Alloy Type: Alloyed copper (Cu + 8 % Al)
• Shielding Gas: I1, I2, I3, M13 (EN439)
• Tensile Properties (As Welded): Yield Strength 175 MPa, Tensile Strength 420 MPa, Elongation 40 %
• Typical Weld Metal Analysis (%): Mn 0.2, Si 0.05, Al 8, Pb 0.003, Zn 0.05, Fe 0.1
• Typical Wire Composition (%): Mn 0.3, Si 0.1, Al 7, Pb 0.01, Zn 0.1, Fe 0.4
• Welding Parameters:
  • 0.8 mm: 60‑165 A, 13‑17.5 V, 4.0‑13.0 mm/min
  • 1.0 mm: 80‑210 A, 12.5‑18 V, 4.0‑12.0 mm/min
  • 1.2 mm: 150‑320 A, 16‑29 V, 5.0‑11.5 mm/min
  • 1.6 mm: parameters not specified

Applications

• MIG welding of aluminium bronzes
• Over‑lay welding of un‑ and low‑alloyed steels
• MIG brazing of galvanized steel in automotive body manufacturing
• Marine and offshore welding where corrosion resistance is critical