ANO-4 Electrodes for Field Use
ANO-4 rutile electrodes are designed for use with a wide range of welding equipment, including budget-friendly models, making them an accessible choice for beginners. The manufacturer allows for welding on damp surfaces or metal that shows traces of rust or other contaminants. This makes them a suitable option for tasks performed outside of a controlled workshop environment.
When selecting these electrodes, it is important to consider the welding position: ANO-4 electrodes can be used in all positions, with the exception of vertical-down welding. For overhead welds, you should verify the recommended welding parameters based on the specific electrode diameter; while the product is rated for various positions, the optimal settings may differ depending on the electrode size.
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Three Diameters — Different Current Ranges
For flat-position welding, ANO-4 electrodes with a diameter of 2.5 mm require a current range of 60–85 A. These values change when moving to vertical or overhead welding positions. Therefore, the combination of diameter and welding position serves as a guide.
For the 3 mm version, the range for the flat (downhand) position is 90–110 A, while for 4 mm electrodes, it is 130–160 A. These values help in matching the consumable material to the operating parameters of the equipment being used.
| Diameter | Flat position | Vertical position | Overhead position |
|---|---|---|---|
| 2.5 mm | 60–85 A | 55–75 A | 50–65 A |
| 3 mm | 90–110 A | 85–100 A | 80–90 A |
| 4 mm | 130–160 A | 120–140 A | 120–130 A |
Parameters for technologists and procurement specialists
For ANO-4 electrodes, the specified ultimate tensile strength is at least 490 MPa, the yield strength is at least 380 MPa, and the elongation is at least 22%. These values allow for comparing the properties of the welding consumable against the requirements for the welded joint. The electrodes are manufactured in accordance with GOST 9466-75 and GOST 9467-75.
For procurement planning, the manufacturer specifies a consumption rate of 1.69 kg of electrodes per 1 kg of deposited metal. The deposition rate (deposition coefficient) is 8.5–9.2 g/(A·h).
All three diameters available on Enex come in identical 5 kg packages; therefore, when placing an order, you can specify the required quantities for each specific type.
Provided they are stored correctly, ANO-4 electrodes do not require preliminary baking. This applies to dry electrodes; if the coating becomes damp, the manufacturer recommends baking them at 140–150 °C for 30 minutes.