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 (%)
| Si | Mn | C | Cu | Ni |
|---|---|---|---|---|
| 0.30 | 1.00 | 0.05 | 0.45 | 0.60 |
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 |