OZL – 6
Permissible spatial positions during welding
OZL – 6 Welding Electrodes
Electrodes for welding high-alloy steels
Prices for welding electrodes
Type of coverage
Basic. (Low-hydrogen B).
Current and polarity
Direct current of reverse polarity (DC +, “plus” on the electrode). Welding is performed in all spatial positions except vertical “top-down”.
Surfacing coefficient
11.5 g/ah
Consumption of electrodes
~ 1.6 – 1.7 kg per 1 kg of deposited metal
Application Area. OZL – 6 Welding Electrodes.
Designed for welding castings and forgings made of high-alloy steels 20Kh23N13, 20Kh23N18 and similar, when requirements for resistance to intercrystalline corrosion are imposed on the weld metal. Can be used for welding steels of grade 20Kh25N20S2 and carbon steels with austenitic class steels. Welding in all spatial positions except vertical “top-to-bottom” with direct current of reverse polarity.
Welding Technique. OZL – 6 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. OZL – 6 Welding Electrodes.
GOST 9466-75, GOST 9467-75.
Corresponding International Standard.
E2005 – B20 (AISI 309 type)
Main Weldable Materials. OZL – 6 Welding Electrodes.
Welding of heat-resistant (scale-resistant) steels of grades 20Kh23N13, 20Kh25N20S2 and similar. Welding of dissimilar joints (carbon steel + austenitic steel). For structures operating in oxidizing atmospheres at elevated temperatures.
Special Properties. OZL – 6 Welding Electrodes.
Heat resistance up to 1000°C in oxidizing environments. Resistance to intercrystalline corrosion. Ferrite phase content 2-10%. High resistance to cracks when welding dissimilar steels. Low spatter and easy slag removal.
Chemical Composition of Deposited Metal, %
| Ni | Si | Mn | P | S | Cr | C | |
| Minimum | 11.00 | < 1.00 | 1.00 | <0.030 | <0.020 | 22.50 | < 0.12 |
| Maximum | 14.00 | < 1.00 | 2.50 | <0.030 | <0.020 | 27.00 | < 0.12 |
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 |
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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