Sandvik 22.8.3.L (Welding wire)
Datasheet updated 2012-08-17 14:52:49 (supersedes all previous editions)
Sandvik 22.8.3.L is a duplex stainless filler metal for welding duplex stainless steels such as Sandvik SAF 2205 and Sandvik SAF 2304. Corrosion resistance is equal to 904L in most applications. The grade can also be used for joining Sandvik SAF 2205 or Sandvik SAF 2304 to carbon steel.
Standards
- AWS ER2209
- EN number 22 9 3 N L
Product standards
- EN ISO 14343
- ASME/AWS SFA5.9
Approvals
CE, DNV, TÜV
Chemical composition- filler metal
| C max |
Si | Mn | P max |
S max |
Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|
| 0.020 | 0.5 | 1.6 | 0.020 | 0.015 | 23 | 9 | 3.2 | 0.16 |
Chemical composition- all-weld metal
The data below is typical for non heat treated all-weld metal made by MIG welding with a shielding gas of Ar + 2%O2.
| C max |
Si | Mn | P max |
S max |
Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|
| 0.020 | 0.5 | 1.5 | 0.020 | 0.015 | 23 | 9 | 3 | 0.14 |
The data below is typical for non heat treated all-weld metal made by SAW, Flux 15W.
| C max |
Si | Mn | P max |
S max |
Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|
| 0.020 | 0.7 | 1.2 | 0.025 | 0.015 | 22.5 | 9 | 3 | 0.15 |
Microstructure - all-weld metal
Austenitic-ferritic (duplex) microstructure with approximately 50 FN, calculated from the WRC-92 diagram.
Mechanical properties - all-weld metal
|
Temperature
|
° C
|
20
|
-20
|
|
|---|---|---|---|---|
|
Yield strength, RP0.2
|
MPa
|
600
|
-
|
|
|
Tensile strength, Rm
|
MPa
|
750
|
-
|
|
|
Elongation, A
|
%
|
25
|
-
|
|
|
Impact strength, Charpy V
|
J
|
160
|
100
|
|
|
Hardness, Vickers
|
HV
|
240
|
-
|
|
|
Temperature
|
° C
|
20
|
-40
|
|---|---|---|---|
|
Yield strength, RP0.2
|
MPa
|
650
|
-
|
|
Tensile strength, Rm
|
MPa
|
770
|
-
|
|
Elongation, A
|
%
|
33
|
-
|
|
Impact strength, Charpy V
|
J
|
90
|
85
|
Physical properties - all-weld metal
| Thermal conductivity, W/m oC, at 20 oC | 16 |
|---|---|
| Thermal expansion per °C, from 20° to 400°C | 14.5x10-6 |
| Density, g/cm3, at 20 oC | 7.9 |
Corrosion resistance- all-weld metal
Sandvik 22.8.3.L is resistant to intergranular corrosion and pitting. It also has good resistance to stress corrosion cracking, especially in environments containing H2S.
Recommended welding data
MIG welding
Electrode positive is used to give good penetration in all types of welded joint. The following table shows common conditions for MIG welding.
| Wire diameter, mm |
Wire feed, m/min
|
Current, A
|
Voltage, V
|
Gas, l/min
|
|---|---|---|---|---|
| Short-arc welding |  |
|
|
|
| 0.8 |
4-8
|
40-120
|
15-19
|
12
|
| 1.0 |
4-8
|
60-140
|
15-21
|
12
|
| Spray-arc welding | |
|
|
|
| 1.0 |
6-12
|
140-220
|
23-28
|
18
|
| 1.2 |
5-9
|
180-260
|
24-29
|
18
|
| 1.6 |
3-5
|
230-350
|
25-30
|
18
|
| Pulsed-arc welding1) | |
|
|
|
| 1.2 |
3-10
|
150-250
|
23-31
|
18
|
1)Pulse parameters: Peak current 300 - 400 A
Background current 50 - 150 A
Frequency 80 - 120 Hz
Sandvik can provide recommendations for shielding gases.
Short-arc welding is used with light gauge material of less than about 3 mm, in depositing root runs, and in welding out-of-flat positions.
The higher the inductance in short-arc welding, the higher the fluidity of the molten pool.
Spray-arc welding is normally used for heavier gauge material.
TIG welding
The parameters for TIG welding depend largely upon the base metal thickness and the welding application.
Electrode negative and a shielding gas of argon or helium should be used to prevent oxidation of the weld metal.
Submerged-arc welding
Electrode positive is suggested for joint welding to give good penetration.
| Wire diameter, mm |
Current, A
|
Voltage, V
|
|---|---|---|
| 2.0 |
200-300
|
28-32
|
| 2.4 |
250-400
|
28-32
|
| 3.2 |
300-450
|
29-34
|
| 4.0 |
350-500
|
30-35
|
Recommended welding flux is Sandvik 15W.
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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