- Applications
- WT-312 is designed for MAG welding of 30%Cr-9%Ni stainless steels and it is used for joining dissimilar steels, steels with reduced weldability and buffer layer prior to hardfacing. (rolls, forging dies, hotwork tools, dies for plastics and so on)
- Characteristics on Usage
-
- - WT-312 is a rutile type flux cored wire for all position welding.
- - It provides the excellent usability with stable arc, less spattering, good bead appearance as the same as that of a sold MIG wire.
- - It has resistance to stress corrosion and highly insensitive to dilution and good scaling resistance up to 1150℃.
- 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.
- - When heat input is excessive, base metal will be bended or distorted due to the bad heat conductivity. Therefore perform welding with selecting proper heat input.
- Sizes Available and Recommended Currents ( DC + )
-
Sizes Available and Recommended Currents ( DC + )
| Dia(mmØ) |
Current(A) |
Voltage(V) |
Electrode extension(mm) |
| 1.2 |
130~220 |
25~30 |
10~20 |
| 1.6 |
170~250 |
25~30 |
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 |
Mo |
| 0.10 |
1.20 |
0.70 |
0.024 |
0.006 |
28.3 |
9.4 |
0.10 |
- Typical Mechanical Properties of All-Weld-Metal (Shielding gas : CO2)
-
Typical Mechanical Properties of All-Weld-Metal
| Y.S MPa |
T.S MPa |
EL(%) |
| 610 |
780 |
25 |
- Welding positions
- Approved by
- JIS