Sandvik 22.11.L (Welding strip)
Datasheet updated 2011-10-13 13:24:17 (supersedes all previous editions)
Sandvik 22.11.L is a strip electrode used to obtain a corrosion resistant overlay weld deposit on C-, CMn- and low-alloy steels using electroslag welding (ESW) with the flux Sandvik 47S. It gives 304/304L/E308/E308L chemical composition when used in single layer technique or 304L/E308L when combined with Sandvik 19.9.L strip electrode for the second layer.
It can also be combined with Sandvik 19.9.LNb for the second layer to obtain 347/E347 or Sandvik 19.12.3.L to obtain 316L/E316L.
There are also other possible combinations and conditions.
Standards
- AWS (EQ309L)
- EN number (B 22 11 L)
Product standards
- EN ISO 14343
- ASME/AWS SFA5.9
Chemical composition - strip electrode
|
C
max |
Si | Mn |
P
max |
S
max |
Cr | Ni | Mo max |
Cu max |
|---|---|---|---|---|---|---|---|---|
|
0.015
|
0.2 | 1.8 |
0.020
|
0.020
|
21 | 11.5 | 0.3 | 0.1 |
Ferrite content
The ferrite content is nominally 13 FN WRC.
Chemical composition of overlay
Typical chemical composition of single layer obtained on C-Mn steel and low-alloyed steel.
 |
Type of overlay
|
C
|
Cr
|
Ni
|
FN, WRC
|
|---|---|---|---|---|---|
| ESW 22.11.L/47S |
304, 304L, E308, E308L
|
max 0.06
|
17.5-19.5
|
9-10.5
|
3-8
|
Consider the figures as examples. Parameters selected and conditions influence on the result. Please contact Sandvik for details and guidelines.
Corrosion properties of overlay
The resistance to general corrosion is good in many mildly corrosive media.
The resistance to intergranular corrosion in Strauss testing (ASTM A262 Practice E) is good if the overlay is not post-weld-heat-treated unless the Carbon content is maximum 0,03 %.
In pitting corrosion applications Mo-alloyed strip electrodes shall be selected. Contact Sandvik for more information.
Mechanical properties of overlay
Passes side bend testing according to ASME Section IX.
Welding data
| Process/Flux | Size |
Current, A
|
Voltage, V
|
Travel speed, mm/min
|
|---|---|---|---|---|
| ESW/47S | 60 x 0.5 mm |
1100 - 1400
|
23-26
|
130 - 220
|
| ESW/47S | 90 x 0.5 mm |
1650 - 2100
|
23-26
|
130 - 220
|
Direct current, with electrode positive is normally used.
The welding data in the table represent the operation capability of the flux. The desired properties of the overlay are obtained by proper selection of the settings within the ranges.
Applications
22.11.L is a multi purpose grade used for corrosion resistant weld surfacing of components in the chemical, petrochemical, nuclear, marine industries. Typical components are pressure vessels, heat exchangers, shafts, industrial piping etc
It is often used as transition layer on which a second layer is welded, using for example Sandvik 19.9.L, 19.9.LNb, 19.12.3.L, 22.8.3.L, for better corrosion resistance.
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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