Instruction and Application: Duplex stainless steel flux-cored wire, weld micro structure of austenite-ferrite dual phase structure of the matrix, deposited metal strength, but also has a good resistance to pitting and stress corrosion cracking resistance. Very good welding properties and wire feed smoothly, stable arc, easy slag detach ability, less spatter, forming beautiful. Applies to the chromium content is about 22% base metal of duplex stainless steel welds.
Typical Chemical Composition of the wire (％)
|
C |
Si |
Mn |
S |
P |
Cr |
Ni |
Mo |
Cu |
N |
|
0.019 |
0.53 |
1.62 |
0.010 |
0.012 |
22.64 |
9.13 |
3.42 |
0.04 |
0.12 |
Mechanical properties of all-weld metal
|
Temperature |
Tensile strength Rm(MPa) |
Yield strength Rp(MPa) |
Elongation A(%) |
Bending Test (GB/T2653) |
|
Room temperature |
820 |
610 |
27 |
No Cracks |
All-welded metal radio-graphic testing:
According to NB / T 47103.2, The radio-graphic testing should not be less than class AB and the quality grade of all-welded metal should not be less than Class I at least.
Reference range (DC-)
|
Sizeφ |
Gas |
Amperage (A) |
Argon flow (L/min) |
Speed (mm/min) |
|
Φ1.2mm |
CO2 |
140-220 |
20-25 |
300-450 |
|
Φ1.6mm |
CO2 |
200-300 |
20-25 |
300-450 |
Notice:
1.The welding consumables surface rust, oil and other impurities to be clean.
2.Each layer is controlled below 150℃.
3.Extension controls in 15 - 25mm.
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