Low-alloyed Electrodes

ES 8018 - GCu A5.5: E 8018-G / EN 499: E 42 2 Z B 42

Description

ES 8018 -GCu is a heavily coated, Ni-Cu alloyed basic electrode It gives a weld metal that has an excellent corrosion resistance to sea water and to flue gases. High mechanical properties with excellent crack resistance of restraint conditions. ES 8018 -GCu welds with a quite, stable arc giving very little spatter. Metal recovery approx. % 115, easy welded in all positions except vertical down. Deposit gave very low hydrogen content. Re-drying is 350°C-400°C min. 2 h.

Typical Chemical Composition (%)

SiMnCCuNi
0.301.000.050.450.60

Typical Mechanical Properties

Yeild Strength Tensile Strength Elongation 5x D Impact (ISO-V)
490 N / mm² 560 N / mm² % 28 20°C 120 j -30°C 60 j

Applications

The electrode can be used in all positions for the welding of all types of joints. E S 8018 - GCu is particularly designed for welding the shell plating of Ships where the protective paint coating wears severely. It is used for welding weathering structural steels, Ship steels of A-, D- and E- quality and slow corrosion steels ( due to its copper content ) of the CORTEN - A and CORTEN - B type are among other application areas. It can be used in the welding of parts that work under dynamic loads at elevated temperatures; in all construction applications including bridge, boiler and pressure vessels, and shipbuilding. E S 8018 - GCu can also be used in the root pass.

Sizes Available & Recomennded Currents

Diam. (mm) Length (mm) Current (Amperes) Arc Voltage Wire Feed
2.50 350 80 -115
3.25 350 100 - 150
4.00 450 130 - 200
5.00 450 200 - 250

Welding Current

DC { + }

Welding Positions


Flat

Horizontal

Vertical Up
 
Overhead

Fillet

Hardness (HB)


Special Coating ( performs several functions)


Typical Base Material Grades