Instruction and Application: The austenitic ferrite duplex stainless steel electrode has a low content of impurity, moderate ferrite content and excellent corrosion resistance.Suitable for welding of a type 022Cr22Ni5Mo3N type austenite - ferrite double - phase stainless steel.Also can be used as carbon steel or low alloy steel surface corrosion resistant layer welding.
Typical Chemical Composition of the wire (％)
|
C |
Si |
Mn |
S |
P |
Cr |
Ni |
Mo |
N |
|
0.022 |
0.39 |
1.71 |
0.002 |
0.017 |
22.57 |
8.95 |
3.20 |
0.15 |
Mechanical properties of all-weld metal
|
Temperature |
Tensile strength Rm(MPa) |
Yield strength Rp(MPa) |
Elongation A(%) |
Bending Test (GB/T2653) |
|
Room temperature |
853 |
620 |
28 |
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 |
Category |
Gas |
Amperage (A) |
Argon flow (L/min) |
Speed (mm/min) |
|
φ0.8mm |
Auto |
Ar |
140-160 |
12.5-13.5 |
80-120 |
|
Φ1.0mm |
Auto |
Ar |
150-170 |
12.5-13.5 |
80-120 |
|
Φ1.2mm |
Auto |
Ar |
160-180 |
12.5-13.5 |
80-120 |
|
Φ1.6mm |
Manual |
Ar |
130-150 |
15-17 |
80-150 |
|
Φ2.0mm |
Manual |
Ar |
140-160 |
15-17 |
80-150 |
|
Φ2.4mm |
Manual |
Ar |
150-170 |
15-17 |
80-150 |
Notice:
1.The welding consumables surface rust, oil and other impurities to be clean.
2.Each layer is controlled below 150℃.
3.The operation is appropriate to the short arc, arc length control in 1-3mm.
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