TSL – 11
Permissible spatial positions during welding
TSL – 11 Welding Electrodes
Electrodes for welding high-alloy steels
Prices for welding electrodes
Application Area. TSL – 11 Welding Electrodes.
Welding of critical structures made of corrosion-resistant chromium-nickel steels 12Kh18N10T, 12Kh18N9T, 08Kh18N12T, 08Kh18N12B and similar, when strict requirements for resistance to intercrystalline corrosion are imposed on the weld metal. Welding in all spatial positions except vertical top-to-bottom with direct current of reverse polarity.
Welding Technique. TSL – 11 Welding Electrodes.
If the permissible moisture content in the coating (0.3%) is exceeded, the electrodes must be additionally baked before use at a temperature of 300-330°C for 40-60 minutes.
Regulatory Documents. TSL – 11 Welding Electrodes.
GOST 9466-75, GOST 9467-75.
Corresponding International Standard.
E2005 – B20 (AISI 347 type)
Main Weldable Materials. TSL – 11 Welding Electrodes.
TSL-11 electrodes are intended for welding of corrosion-resistant chromium-nickel steels of the austenitic class grades 12Kh18N10T, 12Kh18N9T, 08Kh18N12T, 08Kh18N12B, as well as their foreign analogs AISI 321, AISI 304, AISI 347 and similar, operating in aggressive environments and requiring resistance to intercrystalline corrosion.
Special Properties. TSL – 11 Welding Electrodes.
Resistance to intercrystalline corrosion. Increased corrosion resistance in aggressive environments (nitric acid) up to 450°C. High resistance to hot cracking. Low spatter (not more than 5%) and easy slag removal.
Chemical Composition of Deposited Metal, %
| Ni | Si | Mn | P | S | Cr | C | Nb | |
| Minimum | 8.00 | < 1.30 | 1.00 | <0.030 | <0.020 | 18.00 | 0.05 | 0.70 |
| Maximum | 10.50 | < 1.30 | 2.50 | <0.030 | <0.020 | 22.00 | 0.12 | 1.30 |
Welding Recommendations (Current, A)
| Diameter, mm | Weld Position | ||
| Flat | Vertical | Overhead | |
| 3.0 | 80-110 | 60-100 | 60-90 |
| 4.0 | 130-150 | 110-140 | 110-130 |
| 5.0 | 140-180 | 120-160 | not recommended |
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All covered electrodes are sensitive to moisture absorption. Excessive moisture content in the coating can lead to porosity or hydrogen cracking.
However, if the climatic storage conditions meet the following requirements, moisture absorption by the electrodes is minimal:
• 5–15°C at a maximum relative humidity of 60%
• 15–25°C at a maximum relative humidity of 50%
• >25°C at a maximum relative humidity of 40%
At lower temperatures, maintaining the storage temperature 10°C above the ambient temperature is sufficient to achieve the required moisture content level. Cold packages must be allowed to warm up to ambient temperature before opening.
At higher temperatures, the required moisture content in the air can be achieved by dehumidification. The shelf life of electrodes under the above conditions shall not exceed three years.
• Covered electrodes with a basic coating and low hydrogen content must be baked prior to each use whenever requirements regarding the content of diffusible hydrogen and/or the soundness of the deposited metal are specified.
• Stainless steel electrodes with a basic coating may produce porosity during welding if the humidity levels during their storage did not meet the requirements. To restore their original properties, they also need to be baked.
• Electrodes for welding carbon steels with a cellulosic or rutile coating typically do not require baking.
• Electrodes that have suffered serious damage due to exposure to moisture cannot be restored by rebaking and must be rejected.