Exaton 27.31.4.LCu

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Exaton 27.31.4.LCu is a copper alloyed chromium-nickel-molybdenum filler material for welding of high-alloy austenitic stainless steels such as Sanicro 28 (UNS S08028, 1.4563) type. It is also suitable for joining Sanicro 41 (UNS N08825, 2.4858) and other similar materials. Due to its outstanding corrosion properties, Exaton 27.31.4.LCu can be used in the most diverse environments, such as phosphoric and sulphuric acid, sour gas service in the oil & gas industry and chloride bearing seawater. Typical applications are found in heat exchangers, evaporators and transport piping. Exaton 27.31.4.LCu GMAW is primarily used for overlay welding using hot wire TIG and mechanical TIG, but can also be used for MIG/MAG welding preferable in pulsed arc mode.

Typical Tensile Properties

ConditionElongationTensile Strength Yield Strength
As Welded65 %540 MPa360 MPa

Recommended Welding Parameters

Current Voltage Wire Diameter Wire Feed Speed
40-120 A 15-19 V 0.8 mm (0.030 in.) 4.0-8.0 m/min (157-315 in./min)
60-220 A 15-28 V 1.0 mm (0.040 in.) 4.0-12.0 m/min (157-472 in./min)
150-260 A 24-29 V 1.2 mm (0.047 in.) 3.0-10.0 m/min (118-394 in./min)
230-350 A 25-30 V 1.6 mm (1/16 in.) 3.0-5.0 m/min (118-197 in./min)


Wire Electrode SFA/AWS A5.9 : ER383
EN ISO 14343-A : G 27 31 4 Cu L


Approvals CE EN 13479
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Shielding Gas I1 (EN ISO 14175)

Typical Weld Metal Analysis %

Typical Wire Composition %
Al C Co Cr Cu Mn Mo N Nb Ni P S Si
0.04 % 0.01 % 0.03 % 27.0 % 1.0 % 1.7 % 3.5 % 0.05 % 0.02 % 31.0 % 0.012 % 0.001 % 0.1 %

How to purchase Exaton 27.31.4.LCu

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Part Numbers and Accessories

Part Numbers : Exaton 27.31.4.LCu