Exaton 27.31.4.LCu (SAW)

Exaton 27.31.4.LCu is a copper‑alloyed chromium‑nickel‑molybdenum filler material designed for submerged arc welding (SAW) of high‑alloy austenitic stainless steels such as Alleima Sanicro® 28 and 41.

Key Features

• High corrosion resistance for use in phosphoric/sulphuric acids, sour gas and seawater environments.
• Consistent wire quality batch‑to‑batch with tight chemistry and dimensional tolerances.
• Innovative chemistry with elevated Cr and Mo for superior performance.
• Comes with low‑moisture, steel‑drum packaged flux (20‑25 kg drums) that reduces handling damage.
• Provides cost savings through faster weld deposition and reduced cladding layers.

Specifications

• Classifications: EN ISO 14343‑A S 27 31 4 Cu L, SFA/AWS A5.9 ER383
• Approvals: CE EN 13479, UKCA EN 13479
• Alloy Type: Austenitic
• Typical Wire Composition (%): C 0.01, Mn 1.7, Si 0.1, S 0.001, P 0.012, Ni 31.0, Cr 27.0, Mo 3.5, Al 0.04, Cu 1.0, N 0.05, Nb 0.02, Co 0.03

Applications

• Heat exchangers, evaporators, and transport piping.
• Heavy‑duty stainless‑steel welding in oil & gas, chemical, and marine sectors.
• Submerged Arc Welding using recommended Exaton 15W flux.