Today, welding electrodes of various grades are produced, each of which has its own characteristics, as well as strengths and weaknesses. Often welding electrodes used for welding carbon and low alloy steels. Their various types differ in the degree of bending, the mechanical characteristics of the seam, impact strength and other properties. All these indicators are determined by GOSTs, in addition, they have developed a special classification that allows you to determine the degree of resistance to tearing of the seam depending on the elongation and other indicators. Thanks classification of welding electrodes you can find out about the amount of sulfur and phosphorus that are in the weld metal.
Modern types of electrodes
Often, the following types of coatings are used in the manufacture of electrodes: basic, rutile, mixed, acidic and cellulose. If we talk about a standard electrode with an acid coating, oxides of iron, silicon and manganese are used for its manufacture. This type is characterized by the likelihood of hot cracks. Therefore, in accordance with GOST, such welding electrodes can have the brand E42 and E38. Welding work with their use is carried out at direct and alternating current.
Today, welding electrodes of various grades are produced, each of which has its own characteristics, as well as strengths and weaknesses. Often welding electrodes used for welding carbon and low alloy steels. Their various types differ in the degree of bending, the mechanical characteristics of the seam, impact strength and other properties. All these indicators are determined by GOSTs, in addition, they have developed a special classification that allows you to determine the degree of resistance to tearing of the seam depending on the elongation and other indicators. Thanks classification of welding electrodes you can find out about the amount of sulfur and phosphorus that are in the weld metal.Modern types of electrodes
Often, the following types of coatings are used in the manufacture of electrodes: basic, rutile, mixed, acidic and cellulose. If we talk about a standard electrode with an acid coating, oxides of iron, silicon and manganese are used for its manufacture. This type is characterized by the likelihood of hot cracks. Therefore, in accordance with GOST, such welding electrodes can have the brand E42 and E38. Welding work with their use is carried out at direct and alternating current.
For the manufacture of electrodes with a basic coating, fluoride compounds and carbonates are used. They are used in work with quiet metals, they are characterized by impact strength and ductility, which prevents the occurrence of hot cracks. These welding electrodes can have grades E46A, E55, E60, E42A and E50A.
Separately, it is worth noting the electrodes with a cellulose coating, the manufacture of which uses organic substances such as cellulose. They are used for welding semi-calm and mild steels, while the hydrogen content in them is at a fairly high level. Using these electrodes, welding can be carried out on a weight or from top to bottom, so they have certain advantages over other types of electrodes. If speak about classification of welding electrodes of this type, they can be designated E42, E50 or E46.
Today, everyone can choose the best type of consumables for themselves, with which you can reduce the consumption of electrodes, as well as choose their optimal diameter. It is important to understand that the cost of electrodes is affected not only by their type and type, but also by their brand.
