- Applications
- Welding of ship hulls, vehicles, machinery, buildings and bridges.
- Characteristics
-
- - W 4303 is an iron powder lime rutile type electrode which provides highly efficient welding by high deposition rate and good re-arcing property.
- - This is characterized by exceptionallywelding speed increase, easy slag removal even from narrow grooves and outstandingbead appearance.
- Notes on Usage
-
- - Pay attention not to exceed the range of proper currents. Welding with excessivecurrent not only lower X-ray soundness, but also causes increase of spatter, undercutand insufficient slag covering.
- - Dry the electrodes at 70~100°C for 30~60 minutes before use. Excessive moisture absorption lowers usability and may result in some porosities.
- Sizes Available and Recommended Currents ( AC or DC ± )
-
Sizes Available and Recommended Currents ( AC or DC ± )
| Dia. (mm) |
2.6 |
3.2 |
4.0 |
5.0 |
6.0 |
| Length (mm) |
350 |
350 |
400 |
400 |
450 |
Current
(A) |
F |
50~80 |
90~130 |
130~180 |
180~240 |
250~300 |
| V-up & OH |
50~80 |
80~120 |
110~170 |
150~200 |
- |
- Typical Chemical Composition of All-Weld Metal (wt%)
-
Typical Chemical Composition of All-Weld Metal (wt%)
| C |
Mn |
Si |
P |
S |
| 0.08 |
0.38 |
0.16 |
0.013 |
0.011 |
- Typical Mechanical Properties of All-Weld-Metal
-
Typical Mechanical Properties of All-Weld-Metal
| Y.S MPa |
T.S MPa |
EL(%) |
CVN-Impact Value J
(-20℃) |
| 413 |
452 |
32 |
118 |
- Welding positions
