E42 electrodes — technical characteristics and features
Electrodes E42 are designed for obtaining compounds by the method of manual arc welding. This technology remains the most widespread today, especially for use by home craftsmen. This is due to the fact, that the purchase of equipment for semi-automatic welding entails significant financial costs, and what is their meaning, if used it will be only occasionally.
Electrodes in a package of one of the well-known manufacturers
As you know, manual arc welding is performed using electrodes, which are metal rods, on which the special covering is put. The characteristics of such products and their areas of application depend both on the composition of the metal of their core, as well as from the type of coverage.
Characteristics of electrodes of this brand
Electrodes of the E42 brand meet the requirements of two state standards according to their characteristics (9466 and 9467), which were approved in 1975 year. The characteristics of E42 electrodes make it possible to connect parts made of carbon and low-alloy steels with their help, get welds, which are characterized by high impact strength and plasticity.
Such products are mostly used, when the metal of the formed seam must have an index of tear resistance (temporary), not exceeding 50 kg / mm2. If the weld metal must have a large value of this parameter, then choose electrodes of a different type, example, for housework, ANO brand products are often used 6 (the working diameter is from 3 to 6 mm), on which a rutile coating is applied.
Deciphering the marking of electrodes
features of electrodes
Electrodes of the E42 brand differ in the following features of their use.
- Welded seam, which is obtained with their use, has a fairly high strength and plasticity, which makes it resistant even to significant breaking loads.
- Slag crust, which is formed after the crystallization of the weld, easily removed.
- The resulting welded seam is characterized by uniformity, it has no pores and voids, if the welding technology is strictly followed.
- With E42 electrodes, a fairly high-quality connection can be made even by one, who does not have much experience.
- When using such products, the arc ignites very easily.
- Rainbow, ignited using E42 type electrodes of different diameters, characterized by high stability.
- Economic consumption of electrode material.
- Coating, which are applied to products of this type, differ in great variety.
- You can work with similar products even in that case, if the surface of the parts is wet and covered with a layer of rust.
- Regardless of the specific brand of electrodes used, they differ in the optimal price-quality ratio.
- When using these products, the surfacing coefficient is 10g / Ach.
- Electrodes brand E42, the diameter of which can be 4-6 mm, are produced with a length of up to 45 cm.
- To form 1 kg of weld, E42 electrodes are required 1,6 kg.
- Using E42 products of various diameters (in the range of 4 to 6 mm), you can not worry about fluctuations in the length of the arc, they can often occur due to power surges.
Welding electrodes E42
Restrictions on use
Whatever the diameter of the electrodes of this brand, measured in mm, they cannot perform vertical welds: from top to bottom. To work with these products, you can use permanent technical means, alternating current, but necessary, so that welding is performed on reverse polarity. There is a unified variety of E42 electrodes, the designation of which contains the letter "A". Such products, which can also have a diameter 4-6 mm, it is best to use, when there are special requirements for the quality of the weld.
cost of electrodes
Given that fact, that for manual arc welding, performed in a home workshop or garage, the most common electrodes of the ANO brand are used most often 6, it makes sense to provide data on their cost. In the middle, the price of E42 electrodes remains at the mark 65-70 rubles per kilogram. For comparison, you can provide data on the cost of electrodes of other brands, example, MR3. The cost of these products is based on averaged technical characteristics, begins with 60 rubles per kilogram.
Given the universal technical characteristics of E42 brand electrodes, it is possible to draw a conclusion, that they should be used to perform work of varying degrees of complexity, which are carried out as beginners, and professional specialists. If you need electrodes for work around the house or in the garage, then products of the E42 brand of the ANO series will be optimally suitable 6.
