Sandvik 24.13.Si (Welding wire)
Datasheet updated 2012-08-02 19:17:03 (supersedes all previous editions)
Sandvik 24.12.Si is a filler metal particularly suited for MIG welding. It can also be used for TIG and plasma arc welding. It can be used for joining stainless steels of the 18Cr/8Ni type when higher corrosion resistance is desired in the weld metal. It can also be used for dissimilar joints, e.g. austenitic steels to low alloyed steels.
Standards
- AWS ER309Si
- EN number 22 12 H
Product standards
- EN ISO 14343
- ASME/AWS SFA5.9
Chemical composition- all-weld metal
The following data are typical for non heat treated weld metal made by MIG welding with a shielding gas of Ar + 2%O2 and TIG or plasma arc welding with Argon as shielding gas.
| C | Si | Mn | P | S | Cr | Ni | N |
|---|---|---|---|---|---|---|---|
| 0.08 | 0.8 | 1.6 | 0.02 | 0.011 | 23 | 13 | 0.05 |
Microstructure- all-weld metal
Austenitic matrix with a ferrite content of about 9FN according to DeLong.
Mechanical properties- all-weld metal
|
Temperature
|
°C
|
20
|
|---|---|---|
|
Yield strength, RP0.2
|
MPa
|
420
|
|
Tensile strength, RM
|
MPa
|
640
|
|
Elongation, A5
|
%
|
35
|
|
Reduction in area, Z
|
%
|
60
|
|
Impact strength, Charpy V
|
J
|
110
|
|
Hardness, Vickers
|
HV
|
180
|
Physical properties- all-weld metal
|
Temperature °C
|
20
|
100
|
300
|
500
|
|---|---|---|---|---|
|
Thermal conductivity, W/m
|
14
|
15
|
17
|
19
|
Thermal expansion per °C, from 20°C (68 oF) to 400°C (750 oF) 18 x 10-6
Density, g/cm3 7,9
Corrosion properties- all-weld metal
Sandvik 24.13.Si 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 |  |
|
|
|
| 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
|
| Pulsed-arc welding1) | |
|
|
|
| 1.2 |
3-10
|
150-250
|
23-31
|
18
|
| 1)Pulse parameters: | Peak current Background current Frequency |
300 - 400 A 50 - 150 A 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.
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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