Exaton 22.8.3.L (GMAW)

Exaton 22.8.3.L is a high‑performance GMAW filler wire designed for gas‑shielded arc welding of duplex stainless steels such as UNS S32304 and UNS S31803/S32205. It offers excellent corrosion resistance, high strength, and ductility, and can also join these duplex grades to carbon or low‑alloy steels.

Key Features

• Developed for duplex stainless steel welding in heavy‑duty environments
• Consistent wire quality with tight chemistry and dimensional tolerances
• Innovative chemistry with high Cr and Mo for superior corrosion resistance
• Low‑moisture steel drum packaging (20‑25 kg) for better protection
• Enables single‑layer overlay welds, reducing cost and labor

Specifications

• Alloy Type: Austenitic‑ferritic (duplex) ~55 % ferrite, 22.5 % Cr, 8 % Ni, 3 % Mo, low C
• Shielding Gas: M12, M13 (EN ISO 14175)
• 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
• Tensile Properties (As Welded): Yield 550 MPa, Tensile 770 MPa, Elongation 30 %
• Charpy Impact (As Welded): 110 J @ 20 °C down to 90 J @ –50 °C
• Typical Wire Composition (%)*: C 0.012, Mn 1.5, Si 0.5, S 0.0007, P 0.018, Ni 8.6, Cr 23, Mo 3.2, V 0.05, Cu 0.09, N 0.15, Nb 0.01, Ti 0.003, Co 0.04, PRE 37, FN WRC‑92 55, W 0.01

Applications

• MIG/MAG welding of duplex stainless steels
• Overlay welding and cladding of duplex to carbon/low‑alloy steels
• Plasma and hot‑wire TIG, mechanized TIG processes
• High‑temperature and corrosion‑critical service environments