Exaton 22.8.3.LSi (GTAW)

Exaton 22.8.3.LSi (GTAW) is a high‑performance GTAW filler metal designed for welding duplex stainless steels with excellent corrosion resistance, strength and ductility.

Key Features

• Optimized for duplex stainless steels such as UNS S32304 (SAF™ 2304) and UNS S31803/S32205 (SAF™ 2205)
• High corrosion resistance comparable to UNS N08904 (Alleima® 2RK65™)
• Can be used to join duplex grades to carbon or low‑alloy steels
• Consistent chemistry and mechanical properties batch‑to‑batch
• Low‑moisture SAW flux packaging for reduced damage and better storage
• Enables single‑layer overlay welds, lowering consumable and labor costs

Specifications

• Classifications: EN ISO 14343‑A : W 22 9 3 N L, SFA/AWS A5.9 : ER2209, EN ISO 14343‑B : 2209
• Approvals: CE EN 13479, UKCA EN 13479, VdTÜV 10055
• Alloy Type: Austenitic‑ferritic (duplex) ~55 % ferrite, 22.5 % Cr, 8 % Ni, 3 % Mo, low C + Si
• Shielding Gas: I1, I3, N2 (EN ISO 14175)
• Tensile Properties (As Welded): Yield 580 MPa, Tensile 710 MPa, Elongation 28 %
• Charpy Impact (As Welded): 20 °C → 200 J, –20 °C → 180 J, –46 °C → 155 J, –50 °C → 145 J
• Typical Weld Metal Analysis (%): C 0.01, Mn 1.5, Si 0.8, S 0.001, P 0.02, Ni 8.5, Cr 23, Mo 3.1, Cu 0.1, N 0.16, Nb 0.01, PRE 35.8, FN WRC‑92 54, W 0.01
• Typical Wire Composition (%): C 0.012, Mn 1.5, Si 0.8, 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

• GTAW of duplex stainless steel pipe and plate
• Overlay welding for corrosion‑resistant cladding
• Joining duplex grades to carbon or low‑alloy steel structures
• Submerged Arc Welding (SAW) in heavy‑duty environments