- Applications
- WT-70T9 is designed for welding of 50kgf/mm² high tensile steel with outstanding mechanical properties.
- Characteristics on Usage
-
- - Typical applications include building, shipbuilding, bridges, machinery, vehicles, offshore structures and general fabrications.
- - It is a flux cored wire for Flat & H-Fillet efficient welding with CO2 shielding gas.
- - It has better CVN toughness at low temperatures.
- 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.
- - One-side welding defects such as hot cracking may occur with wrong welding parameter such as high welding speed.
- - Shielding gas should be used 100% 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 |
0.04 |
1.48 |
0.52 |
0.014 |
0.010 |
- Typical Mechanical Properties of All-Weld-Meta(Shielding gas : CO2)
-
Typical Mechanical Properties of All-Weld-Meta
Y.S MPa |
T.S MPa |
EL(%) |
CVN-Impact Value J (-30℃) |
500 |
580 |
27 |
74 |
- Welding position