Instruction and Application: Martensitic stainless steel gas shielded wire, with low wire impurity, mainly used for welding of 08Cr13Ni14Mo casting and various specifications of 15Cr13, 08Cr13 and 08Cr13Al stainless steel.The wire is used to restrict the production of ferrite by reducing chromium and nickel.In order to prevent not new hardening, tempering martensite weight in the micro structure after welding heat treatment temperature should not exceed 620 ℃.
Typical Chemical Composition of the wire (％)
|
C |
Si |
Mn |
S |
P |
Cr |
Ni |
Mo |
Cu |
N |
|
0.02 |
0.22 |
0.51 |
0.006 |
0.014 |
11.82 |
4.52 |
0.64 |
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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