Instruction and Application: Austenitic-ferritic super duplex stainless steel gas shielded welding wire, welding wire low content of impurities, high weld metal ferrite content, has the comprehensive performance of austenitic stainless steel and ferritic stainless steel stress corrosion resistance properties of pitting corrosion resistant ability is strong, it is mainly used for containing 25% Cr super duplex stainless steel welding, also can be used as a corrosion of carbon steel or low alloy steel surface layer surfacing.
Typical Chemical Composition of the wire (％)
|
C |
Si |
Mn |
S |
P |
Cr |
Ni |
Mo |
Cu |
N |
|
0.02 |
0.42 |
0.64 |
0.006 |
0.014 |
24.55 |
9.35 |
3.65 |
0.70 |
0.25 |
Mechanical properties of all-weld metal
|
Temperature |
Tensile strength Rm(MPa) |
Yield strength Rp(MPa) |
Elongation A(%) |
Bending Test (GB/T2653) |
|
Room temperature |
850 |
650 |
24 |
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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