Sandvik 24.16.3.L (Welding wire)
Datasheet updated 2012-08-17 14:53:44 (supersedes all previous editions)
Sandvik 24.16.3.L is a filler material particularly suitable for overlay welding on carbon and low-alloy steels, including seam closing of clad plate, where a 316L weld deposit is specified. Sandvik 24.16.3.L is used for TIG, plasma-arc, MIG and submerged-arc welding.
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 | N |
|---|---|---|---|---|---|---|---|---|
| max | max | max | ||||||
|
0.020
|
0.4 | 1.5 | 0.025 | 0.015 | 24.5 | 17 | 2.8 | 0.13 |
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 and TIG or plasma-arc welding with argon shielding gas.
| C max |
Si | Mn | P max |
S max |
Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|
| 0.020 | 0.4 | 1.6 | 0.025 | 0.015 | 24 | 17 | 2.8 | 0.12 |
Microstructure - all-weld metal
Austenitic matrix with a ferrite content of about 11FN according to DeLong.
Mechanical properties - all-weld metal
|
Temperature
|
oC
|
20
|
|---|---|---|
|
Yield strength, RP0.2
|
MPa
|
450
|
|
Tensile strength, Rm
|
MPa
|
650
|
|
Elongation, A
|
%
|
30
|
|
Reduction in area, Z
|
%
|
60
|
|
Impact strength, Charpy V
|
J
|
70
|
Corrosion resistance - all-weld metal
The corrosion resistance of Sandvik 24.16.3.L weld overlays are at the level of the 316L base metal.
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 | Wire feed | Current | Voltage | Gas |
|---|---|---|---|---|
| mm | m/min | A | V | 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 | Current | Voltage |
|---|---|---|
| mm | A | 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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