- Applications
- WT-80 is designed for welding of 590MPa high tensile steel.
Typical applications include machinery, shipbuilding, offshore structures, bridges and general fabrications.
- Characteristics on Usage
-
- - It has very efficient welding due to higher deposition rate particularly and also has easy slag removal.
- - It is used for joining from mild tensile steels to 590MPa class high tensile steels, and is suitable for both fillet and butt welds.
- - Overall welding characteristics except tensile strength is very similar with the WT-70.
- Notes on Usage
-
- - Proper preheating(50~150°C) and interpass temperature must be used in order to release diffusible hydrogen which may cause cracking in weld metal when electrodes are used for medium and heavy plates.
- - Shielding gas should be used 100% CO2 or Ar+20~25% CO2.
- Sizes Available and Recommended Currents ( DC + )
-
Sizes Available and Recommended Currents ( DC + )
| Dia(mmØ) |
1.2 |
1.4 |
1.6 |
| Position |
| F |
Amp |
180~340A |
200~360A |
200~420A |
| HF |
180~340A |
200~360A |
200~420A |
- Typical Chemical Composition of All-Weld-Metal (wt%) ( Shielding gas : CO2)
-
Typical Chemical Composition of All-Weld-Metal (wt%)
| C |
Mn |
Si |
P |
S |
Ni |
| 0.03 |
1.22 |
0.38 |
0.014 |
0.011 |
0.94 |
- Typical Mechanical Properties of All-Weld-Metal ( Shielding gas : CO2)
-
Typical Mechanical Properties of All-Weld-Metal
| Y.S MPa |
T.S MPa |
EL(%) |
CVN-Impact Value J
(-30℃) |
| 573 |
623 |
28 |
82 |
- Welding position
- Approved by
- KS