Sandvik 19.12.3.LRHD (Covered electrodes)
Datasheet updated 2012-08-03 08:58:18 (supersedes all previous editions)
Sandvik 19.12.3.LRHD is a covered chromium-nickel-molybdenum electrode with rutile-acid coating and very high deposition rate. It is used for horizontal welding of steels of 316 types as well as overlays giving 316 type composition.
The electrode has excellent arc stability and fast burn off rate with minimal stub loss. It is also characterized by improved moisture resistance, self peeling slag, easy post weld finishing and smooth uniform beads.
Applications
Sandvik 19.12.3.LRHD is used for welding steels of the following types:
| UNS | S31600, S31603, S31653, S31609 and S31635 |
| ASTM | 316, 316L, 316LN, 316H and 316Ti |
In cases where creep strength is of secondary importance, Sandvik 19.12.3.LRHD is suitable for welding of corresponding stabilized austenitic steels. When a weld metal similar to the parent metal is not required, Sandvik 19.12.3.LRHD can be used for welding ferritic and martensitic steels.
Standards
- AWS E316L-17
- EN number E 19 12 3 LR
Chemical composition - weld metal
The following data are valid for all-weld metal.
|
C
|
Si
|
Mn
|
Cr
|
Ni
|
Mo
|
|---|---|---|---|---|---|
|
<0.03
|
0.8
|
0.8
|
18
|
12
|
2.8
|
Microstucture - weld metal
Austenitic matrix with a ferrite content of 5–10 FN according to DeLong.
Mechanical properties- weld metal
The following data are valid for as welded all-weld metal.
| Yield strength, RP0.2 | MPa | 420 |
| Tensile strength, RM | MPa | 575 |
| Elongation, A5 | % | 37 |
| Hardness | HB | 210 |
| Temperature, °C | 20 | -40 |
|---|---|---|
| KV, J | 55 | 55 |
Corrosion properties- weld metal
Sandvik 19.12.3.LRHD is resistant to intergranular corrosion according to ASTM A262 practice E in the as-welded and quench-annealed condition.
Approvals
- CW
- CWB
- DNV
- TÜV
Contact your nearest sales office for full details.
Marking
| Printing |
Sandvik 19.12.3.LRHD/316L-17
|
| Tip colour |
–
|
Deposition and working data
|
Electrode diameter, mm
|
3.2
|
4.0
|
5.0
|
|---|---|---|---|
|
Length, mm
|
400
|
450
|
450
|
|
Max deposition rate,
kg weld metal/h (approx) |
2.11 |
3.10 |
4.18 |
|
Effective value,
kg weld metal/kg electrodes |
0.58 |
0.64 |
0.63 |
|
Change value,
electrodes/kg weld metal |
31 |
17 |
11 |
|
Burn-off time per electrode
at max current, s |
56 |
61 |
69 |
| Metal recovery, % | 136 | 146 | 140 |
Working data
Welding positions |
preferably flat position |
|---|---|
| Current/polarity |
DC+ or AC
|
| Diameter, mm | Current, A |
|---|---|
| 3.2 | 80–120 |
| 4.0 | 100–160 |
| 5.0 | 160–220 |
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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