TOKO (AWS E7018) is a high cellulose sodium type electrode with Mo. The electrodes show a vary good performance in welding especially vertical down and overhead. It forms double sides by one sides welding. It is suitable for root passes, hot passes, filler and cover passes as well as for copping welding. Keeping the electrode in dry condition.
The electrodes do not be redried before welding. In Welding small current is recommended and swaying broad should be less than 2.5 times of the electrode.
Chemical Composition of Deposited Metal(%)
| |
C |
Mn |
Si |
S |
P |
Mo |
| Standard |
<0.12 |
<0.60 |
<0.40 |
<0.035 |
<0.035 |
0.40-0.65 |
| Typical |
0.077 |
0.33 |
0.10 |
0.011 |
0.010 |
0.483 |
Mechanical Properties of Deposited Metal
| |
Yield Point s(MPa) |
Tensile Strength b (MPa) |
Elongation δ5 (%) |
| Standard |
>390 |
>490 |
>22 |
| Typical |
480 |
575 |
28 |
Sizes, Pieces & Recommended Current (DC)
| Size (mm) |
2.5×300 |
3.2×350 |
4.0×350 |
5.0×350 |
| Pieces (5kg) |
≈355 |
≈192 |
≈124 |
≈78 |
| Current(A) |
F,H |
60-80 |
70-120 |
110-150 |
150-200 |
| OH,VD |
50-70 |
60-110 |
100-140 |
140-180 |
