Instruction and Application: 0Cr25Ni22Mo2N type urea class stainless steel electrode, low impurity content, good mechanical properties and good forming performance.Applicable to the urea device, such as the gas lift tower, the condenser and other pressure vessels and the inner wall stainless steel surfacing and welding.
Typical Chemical Composition of the wire (％)
|
C |
Si |
Mn |
S |
P |
Cr |
Ni |
Mo |
Cu |
N |
|
0.013 |
0.43 |
5.21 |
0.001 |
0.002 |
25.54 |
21.12 |
2.18 |
0.03 |
0.11 |
Mechanical properties of all-weld metal
|
Temperature |
Tensile strength Rm(MPa) |
Yield strength Rp(MPa) |
Elongation A(%) |
Bending Test (GB/T2653) |
|
Room temperature |
612 |
432 |
29 |
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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