Low-alloyed Electrodes
ES 8018 - GN A5.5: E 8018-G / EN 499: E 46 5 Mn1Ni B 45 H5
Description
ES 8018 GN is a basic electrode with very good welding characteristics. The electrode is of the AWS 8018 -G type and yields a weld metal alloyed with about 0.9 % Ni. It meets the impact requirements down to - 50 °C . The coating is of the low - moisture absorption type and the diffusible hydrogen content is below s ml/100 g weld metal. It has about 120 % metal recovery. Good weldability in all positions except vertical down. Preheating and inter - pass temperatures as well as post weld heat treatment re-drying is 350°C - 400°C min. 2 h.
Typical Chemical Composition (%)
| S | Si | Mn | C | Ni | P |
|---|---|---|---|---|---|
| < 0.02 | 0.40 | 1.4 | 0.06 | < 0.02 | 0.9 |
Typical Mechanical Properties
| Yeild Strength | Tensile Strength | Elongation 5x D | Impact (ISO-V) |
|---|---|---|---|
| 460 N / mm² | 600 N / mm² | % 22 | -20°C – 150 j -50°C – 47 j |
Applications
ES 8018 -GN is particularly designed for the welding of high strength low alloyed steels. It is suitable for the root pass and welding of pipelines and storage tanks that are frequently used in the chemical industry and cold storage areas.
Sizes Available & Recomennded Currents
| Diam. (mm) | Length (mm) | Current (Amperes) | Arc Voltage | Wire Feed |
|---|---|---|---|---|
| 2.5 | 350 | 55 - 100 | ||
| 3.25 | 450 | 80 - 140 | ||
| 4.00 | 450 | 110 - 180 | ||
| 5.00 | 450 | 155 - 290 |
Welding Current
AC min. 70 V. / DC { + }
Welding Positions
 Flat |
 Horizontal |
 Vertical Up |
 Overhead |
 Fillet |