OZL – 8
Permissible spatial positions during welding
OZL – 8 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) and alternating current from a transformer with an open-circuit voltage of at least 50V. 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 – 8 Welding Electrodes.
Designed for welding products made of corrosion-resistant chromium-nickel steels of grades 08Kh18N10, 12Kh18N9, 08Kh18N10T and similar, when strict requirements for resistance to intercrystalline corrosion are not imposed on the weld metal. Welding in all spatial positions except vertical top-to-bottom with direct current of reverse polarity.
Welding Technique. OZL – 8 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 – 8 Welding Electrodes.
GOST 9466-75, GOST 9467-75.
Corresponding International Standard.
E – 2004 – B20 (AISI 308L type)
Main Weldable Materials. OZL – 8 Welding Electrodes.
Welding of chromium-nickel austenitic corrosion-resistant steels of grades: 08Kh18N10, 12Kh18N9, 08Kh18N10T, 12Kh18N10T, 08Kh18N12B and similar. For structures not operating in aggressive environments that cause intercrystalline corrosion.
Special Properties. OZL – 8 Welding Electrodes.
The electrodes ensure the production of weld metal with high heat resistance up to 1000°C and resistance to intercrystalline corrosion when tested according to the AMU method of GOST 6032-89. They are characterized by good welding and technological properties: insignificant spatter, easy slag removal, stable arc burning, and excellent weld quality.
• No intercrystalline corrosion
• Provide high indicators of technological strength of the deposited metal and weld metal.
Chemical Composition of Deposited Metal, %
| Ni | Si | Mn | P | S | Cr | C | |
| Minimum | 7.50 | 0.30 | 1.00 | <0.030 | <0.020 | 18.00 | <0.09 |
| Maximum | 10.00 | 1.20 | 2.00 | <0.030 | <0.020 | 21.50 | <0.09 |
Welding Recommendations (Current, A)
| Diameter, mm | Weld Position | ||
| Flat | Vertical | Overhead | |
| 3.0 | 90-110 | 80-100 | 80-100 |
| 4.0 | 120-150 | 100-120 | 100-120 |
| 5.0 | 180-210 | 160-190 | 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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