Sandvik 22.15.3.L (Welding wire)
Datasheet updated 2012-08-17 14:52:39 (supersedes all previous editions)
Sandvik 22.15.3.L is an austenitic filler material for joining stainless steels to carbon steels or low-alloy steels such as 316L to mild steel and for overlay welding where where higher Mo content is desired in the second and third layers.
Standards
- AWS ER (309LMo)
- EN number 23 12 2 L
Product standards
- EN ISO 14343
- ASME/AWS SFA5.9
Chemical composition - filler metal
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Mo
|
|---|---|---|---|---|---|---|---|
| max | max | max | |||||
|
0.025
|
0.4
|
1.5
|
0.025
|
0.015
|
21.5
|
15
|
2.7
|
Chemical composition - all-weld metal
The following data is typical for non heat treated all-weld metal made by MIG welding with a shielding gas of Ar + 2%O2.
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Mo
|
|---|---|---|---|---|---|---|---|
| max | max | max | |||||
|
0.025
|
0.4
|
1.6
|
0.025
|
0.015
|
21.5
|
15
|
2.7
|
Microstructure - all-weld metal
Austenitic matrix with a ferrite content of about 12FN according to DeLong and 11.5 FN, measured by a Magne Gage instrument.
Mechanical properties - all-weld metal
|
Temperature
|
oC
|
20
|
|---|---|---|
|
Yield strength, RP0.2
|
MPa
|
400
|
|
Tensile strength, Rm
|
MPa
|
600
|
|
Elongation, A
|
%
|
40
|
|
Reduction in area, Z
|
%
|
60
|
|
Impact strength, Charpy V
|
J
|
140
|
|
Hardness, Vickers
|
HV
|
180
|
Physical properties - all-weld metal
|
Temperature oC
|
20
|
100
|
300
|
500
|
|---|---|---|---|---|
|
Thermal conductivity, W/m
|
14
|
15
|
17
|
18
|
| Thermal expansion per °C, from 20° to 400°C | 18x10-6 |
|---|---|
| Density, g/cm3, at 20 oC | 7.9 |
Corrosion properties - all-weld metal
Sandvik 22.15.3.L is normally used for joints between non alloyed or low alloyed steels and stainless steels, where resistance to corrosion is of secondary importance.
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 |
200-350
|
28-32
|
| 2.4 |
250-450
|
28-32
|
| 3.2 |
300-500
|
29-34
|
| 4.0 |
400-600
|
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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