TSN – 14
Permissible spatial positions during welding
Type of coverage
Basic (calcium fluoride).
Current and polarity
Direct current of reverse polarity (DC+). Surfacing is performed only in the lower position.
Surfacing coefficient
12.0 g/ah
Consumption of electrodes
~ 1.7 kg per 1 kg of deposited metal
Application Area. TSN – 14 Welding Electrodes.
Electrodes with a basic coating are intended for surfacing of hot forging and cutting equipment, knives and shears, dies and similar parts. Surfacing in the flat position with direct current of reverse polarity.
Welding Technique. TSN – 14 Welding Electrodes.
Surfacing is performed with direct current of reverse polarity (DC+) only in the flat position. Preheating of the workpiece is mandatory to prevent crack formation, however, even this does not always guarantee the absence of cracks in the deposited metal. The process is carried out with narrow beads with minimal heat input.
Regulatory Documents. TSN – 14 Welding Electrodes.
GOST 9466-75, GOST 9467-75.
Main Weldable Materials. TSN – 14 Welding Electrodes.
Surfacing of working surfaces of steel parts subject to intense abrasive wear under low specific loads.
Chemical Composition of Deposited Metal, %
| C | Si | Mn | P | S | Cr | V | Mo | |
| Minimum | 0.35 | 0.80 | 0.80 | <0.030 | <0.030 | 4.00 | 0.70 | 1.20 |
| Maximum | 0.50 | 1.20 | 1.20 | <0.030 | <0.030 | 6.00 | 1.10 | 2.00 |
Welding Recommendations (Current, A)
| Diameter, mm | Weld Position | ||
| Flat | Vertical | Overhead | |
| 3.0 | 70-110 | – | – |
| 4.0 | 120-150 | – | – |
| 5.0 | 160-200 | – | – |
We respond quickly to questions on Telegram
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Bottom horizontal or in a boat
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Bottom to the corner
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Horizontal seam on a vertical plane
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Vertical seam for lifting
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Vertical seam for descent
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Ceiling seam
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.
Contacts
Company phone numbers:
+375 (29) 688-27-06
+375 (17) 388-28-02 accountant
+375 (17) 388-28-03 sales department
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