- Applications
- WT-309LNb is suitable for the first layer on mild or low alloy steel prior to overlaying with WT-347 and WT-347H.
- Characteristics on Usage
-
- - WT-309LNb is a rutile type flux cored wire for all-position welding.
- - This wire deposits low carbon weld with 24%Cr-13%Ni and Niobium to minimize the risk of sensitization.
- - 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.
- Notes on Usage
-
- - The shielding gas should be used 100% CO2 and Ar+2~5%O2 for welding.
- - Gas flow rate is proper 20~25ℓ/min.
- Sizes Available and Recommended Currents ( DC +)
-
용착금속의 기계적 성질의 일례
| Dia(mmØ) |
Current(A) |
Voltage(V) |
Electrode extension(mm) |
| 1.2 |
170~280 |
25~33 |
10~20 |
| 1.6 |
200~350 |
25~33 |
15~25 |
- Typical Chemical Composition of All-Weld-Metal (wt%) (Shielding gas : CO2)
-
용착금속의 기계적 성질의 일례
| C |
Mn |
Si |
P |
S |
Cr |
Ni |
Nb |
| 0.03 |
1.09 |
0.58 |
0.012 |
0.005 |
24.2 |
12.5 |
0.8 |
- Typical Mechanical Properties of All-Weld-Metal (Shielding gas : CO2)
-
용착금속의 기계적 성질의 일례
| Y.S MPa |
T.S MPa |
EL(%) |
IV J (0℃) |
| 484 |
602 |
34 |
70 |
- Welding position
