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MIG Wires

SUPERLINK MIG-347

AWS A5.9: ER347 EN ISO 14343-A: G 19 9 Nb

A copper-coated solid MIG wire for GMAW welding. ER347 type. Produces a stable spray/globular arc with low spatter, smooth bead profile, and self-releasing slag (for SS types). Suitable for single and multi-pass welding. Use Ar + CO₂ or pure Ar shielding gas.

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Technical specifications

Weld metal analysis, %
C Cr Ni Nb+Ta Mn
≤0.08%19.0–21.5%9.0–11.0%10×C min–1.0%1.0–2.5%
Mechanical properties
Tensile strength ≥530 MPa
Yield strength ≥360 MPa
Elongation ≥30%
Sizes and current ranges
Diameter
0.8mm
0.9mm
1.0mm
1.2mm

Welding procedure & parameters

DCEP. SS types: shielding gas 100% Ar or 98% Ar + 2% O₂. MS types: 75–80% Ar + 20–25% CO₂ or 100% CO₂. Wire dia: 0.8, 0.9, 1.0, 1.2mm. Voltage: 18–26V. WFS: 4–14 m/min. Short circuit or spray transfer mode.

Typical applications

GMAW of 347, 321 Nb/Ti stabilised SS. High-temperature service, exhaust systems, refinery equipment up to 800°C.

Storage & handling notes

Store sealed/dry. For SS wires: use 100% Ar or Ar+O₂ only — CO₂ degrades corrosion resistance. Ensure clean base metal.