Sandvik 10S (Welding flux)
Datasheet updated 2012-08-03 08:52:19 (supersedes all previous editions)
Sandvik 10S is a slightly chromium compensating agglomerated flux giving good slag removal and fine bead appearance. It is primarily used for submerged-arc welding with strip electrodes of the chromium, chromium and chromium-nickel-molybdenum types with or without niobium. This flux can also be used for wire electrodes.
Sandvik 10S is an allround flux which can be used for many applications including joining stainless steels where controlled ferrite is required and surfacing large vessels with strip electrodes in petrochemical plants. Sandvik 10S gives about 2% lower ferrite content than flux Sandvik 10SW.
Standards
- EN number 760 S A CS 2 Cr
Approvals
Contact us for latest information on approvals.
Chemical composition (nominal), %
| SiO2 | MgO | Al2O3 | CaF2 | Cr |
|---|---|---|---|---|
| 35 | 30 | 15 | 7 | 2 |
Flux data
| Bulk weight | 1.0 kg/l |
|---|---|
| Basicity (Boniszewski) | 1.0 |
| Current capacity using 60 x 0.5 mm strip electrode |
1200 A |
| Flux consumption | 0.7 kg/kg strip electrode 0.7 kg/kg wire electrode at 30 V 1.0 kg/kg wire electrode at 35 V |
Strip welding
Alloying vector
The alloying vector describes the difference in chemical composition between the filler metal and the undiluted all-weld metal due to the influence of the flux.
| Element | Sandvik strip electrode | |||
|---|---|---|---|---|
| 19.9.LNb | 24.13.LNb | 24.13.L | 19.12.3.L | |
| C | +0.002 | +0.001 | +0.003 | +0.002 |
| Si | +0.6 | +0.7 | +0.6 | +0.6 |
| Mn | -1.0 | -1.1 | -0.9 | -1.0 |
| Cr | -1.0 | -1.0 | -1.2 | -1.1 |
| Ni | -0.2 | -0.1 | 0 | -0.1 |
| Mo | - | - | - | 0 |
| Nb | -0.1 | -0.2 | - | - |
| N | +0.02 | +0.02 | +0.02 | +0.02 |
Surfacing
The cemical compositions below are typical results after weld surfacing on 2¼ Cr1Mo steel.
| Alloy type | ASTM 347 | ASTM 347 | ASTM 316L |
|---|---|---|---|
| Layer 1 | Sandvik 24.13.LNb |
Sandvik 24.13.L |
Sandvik 24.13.L |
| Layer 2 | Sandvik 19.9.LNb |
Sandvik 19.9.LNb |
Sandvik 19.12.3.L |
| C | 0.03 | 0.03 | 0.02 |
| Si | 0.08 | 0.06 | 0.08 |
| Mn | 0.07 | 1.1 | 0.07 |
| Cr | 18.8 | 19.6 | 18.1 |
| Ni | 10.4 | 10.6 | 12.5 |
| Mo | 0.1 | 0.2 | 2.2 |
| Nb | 0.4 | 0.3 | - |
| N | 0.05 | 0.04 | 0.06 |
Intergranular corrosion
All three surfacings above have been IGC tested (ASTM A262, Pr.E, Strauss) after heat treatment at 690°C for 15 hours, and passed.
Bend testing
All three surfacings have passed side bend testing (ASME IX) after heat treatment at for 690°C 15 hours.
Welding parameters
Direct current, with electrode positive is normally used.
| Strip dimensions, mm | Current, A | Voltage, V | Travel speed, mm/mm |
|---|---|---|---|
| 30 x0 0.50 | 300-425 | 28-30 | 80-160 |
| 60 x 0.50 | 650-850 | 28-30 | 80-160 |
| 90 x 0.50 | 975-1275 | 28-30 | 80-160 |
Wire welding
Alloying vector
The alloying vector describes the difference in chemical composition between the filler metal and the undiluted all-weld metal due to the influence of the flux.
| Element | Sandvik wire electrode | ||
|---|---|---|---|
| 19.9.L | 19.9.Nb | 19.12.3.L | |
| C | -0.001 | -0.008 | 0 |
| Si | +0.6 | +0.6 | +0.6 |
| Mn | -0.8 | -0.5 | -0.8 |
| Cr | -0.7 | -0.7 | -0.5 |
| Ni | 0 | -0.1 | +0.2 |
| Mo | 0 | 0 | 0 |
| Nb | 0 | -0.1 | 0 |
| N | +0.01 | +0.01 | +0.01 |
Surfacing
Dilution for SAW with wire electrodes is fairly high and special measure has to be taken to reduce dilution, like low speed, angeled welding torch, large overlap, etc. As Sandvik 10S gives low ferrite content it is more suitable for the first layer.
The chemical compositions below are typical results after weld surfacing on 2¼Cr1Mo steel.
| Alloy type | ASTM 347 | ASTM 347 | ASTM 316L |
|---|---|---|---|
| Layer 1 | Sandvik 24.13.LHF |
Sandvik 24.13.L |
Sandvik 24.13.L |
| Layer 2 | Sandvik 19.9.Nb |
Sandvik 19.9.Nb |
Sandvik 19.12.3.L |
| Layer 3 | Sandvik 19.9.Nb |
Sandvik 19.9.Nb |
Sandvik 19.12.3.L |
| C | 0.04 | 0.03 | 0.02 |
| Si | 1.0 | 1.0 | 0.9 |
| Mn | 0.6 | 0.7 | 0.8 |
| Cr | 18.0 | 18.2 | 17.4 |
| Ni | 9.5 | 9.6 | 11.8 |
| Mo | 0.2 | 0.1 | 2.2 |
| Nb | 0.3 | 0.3 | - |
| N | 0.04 | 0.05 | 0.05 |
Joining
Sandvik 10S gives the following typical mechanical properties of all-weld metal for the wire electrodes below.
| KV, J | ||||||
|---|---|---|---|---|---|---|
| Sandvik wire |
RP0.2, MPa | Rm, MPa | A5, % | 20oC | -40oC | -196oC |
| 19.9.L | 380 | 570 | 40 | 75 | - | 40 |
| 19.9.Nb | 430 | 610 | 38 | 70 | 60 | - |
| 19.12.3.L | 370 | 560 | 35 | 65 | 65 | 55 |
Welding parameters
Direct current, with electrode positive is normally used.
| Wire diameter, mm | Current, A | Voltage, V | Travel speed, mm/mm |
|---|---|---|---|
| 2.4 | 250-400 | 26-32 | 300-500 |
| 3.2 | 300-550 | 26-32 | 300-600 |
| 4.0 | 400-700 | 26-32 | 300-600 |
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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