Sandvik 22.9.3.LB — Sandvik Materials Technology

Datasheet updated 20140204 17:37:49 (supersedes all previous editions)
Sandvik 22.9.3.LB
(Covered electrodes)
Sandvik 22.9.3.LB is a covered electrode with basic coating for welding of duplex
(ferriticaustenitic) 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 ferriticaustenitic (duplex) steels. It is particularly suitable
in applications where the requirements on the mechanical properties are high. Sandvik
o
o
22.9.3.LB is suitable for service temperatures up to 280 C (535 F). 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
PRODUCT STANDARDS
AWS A5.4
E220915
ASME Sect II SFA5.4
E220915
EN1600
E 22 9 3 NLB
CHEMICAL COMPOSITION - ALL-WELD METAL
The following data are valid for non heattreated allweld metal.
CHEMICAL COMPOSITION, WT%
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
Ferriticaustenitic structure with a nominal ferrite content of 45 FN (WRC).
MECHANICAL PROPERTIES - ALL-WELD METAL
Temperature
°C
20
40
Proof strength, RP 0 . 2
MPa
510

Tensile strength, Rm
MPa
730

Elongation, A
%
25

Impact strength, Charpy V
J
93
75
a
a
Rp0.2 corresponds to 0.2% offset yield strength
CORROSION PROPERTIES - ALL-WELD METAL
Strauss test, DIN 50914
Pitting corrosion: CPT to ASTM G48. 27 °C
DEPOSITION DATA
Resistant to intergranular corrosion
ELECTRODE 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
Burnoff time per electrode
at max current, s
46
71
74
WORKING DATA
Welding positions
Current/polarity
diameter <=3.25 mm
all except vertical down
diameter >=4.0 mm
preferably flat position
direct current/electrode positive or alternating current.
Diameter, mm
2.5
3.25
4.0
Current, A
5080
60100
100140
FURTHER INFORMATION
o
Redrying of the electrodes: 2h/200 C
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.
www.smt.sandvik.com/contact-us
www.smt.sandvik.com

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