- Applications
- WT-309L(P) is designed for the welding of dissimilar metals such as stainless steels and carbon steels or stainless steels and low alloy steels.
- Characteristics on Usage
-
- - WT-309L is a rutile type flux cored wire for flat and horizontal position welding.
- - WT-309LP is a rutile type flux cored wire for all-position welding.
- - It provides the excellent usability with stable arc, less spattering, good bead appearance,
better slag removal, and less quantity of welding fume comparable to solid wire.
- - The weld metal contains optimum ferrite contents in their austenitic structures, Therefore their weldability is excellent with lower crack susceptibility.
- Notes on Usage
-
- - The shielding gas should be used 100%CO2 or Ar+20~25%CO2 for welding.
- - Gas flow rate is proper 20~25ℓ/min.
- Sizes Available and Recommended Currents ( DC + )
-
Sizes Available and Recommended Currents ( DC + )
| Dia(mmØ) |
Current(A) |
Voltage(V) |
Electrode extension(mm) |
| 1.2 |
150~280 |
25~33 |
10~20 |
| 1.6 |
200~350 |
25~33 |
15~25 |
- Typical Chemical Composition of All-Weld-Metal (wt%) (Shielding gas : CO2)
-
Typical Chemical Composition of All-Weld-Metal (wt%)
|
C |
Mn |
Si |
P |
S |
Cr |
Ni |
Ferrite
No |
| WT-309L |
0.035 |
1.30 |
0.75 |
0.022 |
0.009 |
22.80 |
12.30 |
18 |
| WT-309LP |
0.029 |
1.33 |
0.64 |
0.019 |
0.011 |
23.30 |
12.80 |
20 |
- Typical Mechanical Properties of All-Weld-Metal (Shielding gas : CO2)
-
Typical Mechanical Properties of All-Weld-Metal
|
Y.S MPa |
T.S MPa |
EL(%) |
IV J
(-20℃) |
| WT-309L |
432 |
590 |
37 |
50 |
| WT-309LP |
436 |
593 |
38 |
48 |
- Welding positions
- Approved by
- ABS, DNV, JIS, CE