Sandvik 22.9.3.LB (Covered electrodes)
Datasheet updated 2012-08-03 09:02:03 (supersedes all previous editions)
Sandvik 22.9.3.LB is a covered electrode with basic coating for welding of duplex (ferritic-austenitic) stainless steels of UNS S31803/S32205 type (e.g. Sandvik SAF 2205).
This basic type of electrode is characterized by very good welding properties in all positions for welding stainless ferritic-austenitic (duplex) steels. It is particularly suitable in applications where the requirements on the mechanical properties are high. Sandvik 22.9.3.LB is suitable for service temperatures up to 280oC (535oF). It gives little spatter and very good slag removal.
Sandvik 22.9.3.LB is particularly suited for welding in tubes and when good impact properties at low temperatures are requested.
Standards
- AWS E2209-15
- EN number E 22 9 3 NLB
| AWS A5.4 | E2209-15 |
| ASME Sect II SFA5.4 | E2209-15 |
| EN1600 | E 22 9 3 NLB |
Chemical composition - all-weld metal
The following data are valid for non heat-treated all-weld metal.
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Mo
|
N
|
|---|---|---|---|---|---|---|---|---|
|
<0.04
|
0.5
|
1.0
|
<0.030
|
<0.025
|
23
|
9
|
3.0
|
0.15
|
Microstructure all-weld metal
Ferritic-austenitic structure with a nominal ferrite content of 45 FN (WRC).
Mechanical properties - all-weld metal
|
Temperature
|
°C
|
20
|
-40
|
|---|---|---|---|
|
Yield strength, RP0.2
|
MPa
|
510
|
-
|
|
Tensile strength, RM
|
MPa
|
730
|
-
|
|
Elongation, A5
|
%
|
25
|
-
|
|
Impact strength, Charpy V
|
J
|
93
|
75
|
Corrosion properties - all-weld metal
| Strauss test, DIN 50914 | Resistant to intergranular corrosion |
|---|
Pitting corrosion: CPT to ASTM G48. 27 °C
Marking
| Printing |
Sandvik 22.9.3.LB/2209-15
|
|---|---|
| Tip colour |
blue
|
Deposition data
|
Electrode diameter, mm
|
2.5
|
3.25
|
4.0
|
|
|---|---|---|---|---|
|
Length, mm
|
300
|
350
|
350
|
|
|
Weights:
kg/100 pcs |
1.8
|
3.2
|
4,9
|
|
|
kg/box
|
1.7
|
4.2
|
4.1
|
|
|
Electrodes/box
|
96
|
130
|
84
|
|
|
Max deposition rate,
kg weld metal/h, approx |
0.8 |
1.0 |
1.5 |
|
|
Effective value
kg weld metal/kg electrodes |
0.58 |
0.58 |
0.58 |
|
|
Change value
Electrodes/kg weld metal |
98 |
50 |
32 |
|
|
Burn-off time per electrode
at max current, s |
46 |
71 |
74 |
|
Welding positions
|
diameter <=3.25 mm
|
all except vertical down
|
|---|---|---|
|
diameter >=4.0 mm
|
preferably flat position
|
|
|
Current/polarity
|
direct current/electrode positive or alternating current.
|
|
|
Diameter, mm
|
2.5
|
3.25
|
4.0
|
|---|---|---|---|
|
Current, A
|
50-80
|
60-100
|
100-140
|
Further information
Redrying of the electrodes: 2h/200 oC
Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials.
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