Electrodes for welding stainless steel: welding stainless steel correctly

TsL-11 electrodes: application and technical characteristics
If you have to deal with stainless steel welding from time to time, then you should definitely know about TsL-11 electrodes. These electrodes are popular when welding alloys and corrosion-resistant steel grades.

Having decent technical characteristics, TsL-11 welding electrodes have found wide application both in industry and in everyday life. These electrodes ensure a strong and corrosion-resistant weld. You can find out exactly what electrodes of this brand are used for and what technical characteristics they have on the website.

MR electrodes

The most prominent representatives of the products of this oldest plant are Losinoostrovsky MP-3 electrodes. Their main purpose is welding critical structures made of carbon steels, as well as low-alloy ones. It is possible to weld parts of large thickness.

The electrodes have a rutile coating. It is possible to use direct and alternating current. Welding can be carried out in various positions in space, excluding downward movement. Cross sections of consumables: 2.5; 3.0; 4.0; 5.0; 6.0 millimeters. The number of elements of 3.0 millimeters in one kilogram is 39, and 4.0 millimeters - 16. The plant offers for purchase packs containing consumable elements weighing 1.0; 2.5; 5.0 kilograms.

Losinoostrovsky electrodes of this brand may vary in color, depending on their coating. There are blue electrodes, green electrodes, red electrodes and regular gray electrodes.

Manufacturers and brands: LEZ, Monolit and others

The domestic market for CL brand consumables is represented by both Russian and foreign companies . Moreover, among foreign manufacturers, manufacturers from Belarus and Ukraine prevail . To a lesser extent, market demands are met by higher quality, but at the same time more expensive, products of European brands (Swedish ESAB, German ZELLER and others).

Electrodes of the TsL LEZ series in packaging

Among the Russian manufacturers producing TsL brand electrodes, the following stand out:

• “LEZ Trading House” is an enterprise operating in the welding materials market for more than half a century, its products have certificates from independent expert organizations;
• "Electrod" in Tolyatti is a young developing enterprise, already occupying a leading position among Russian ones. St. Petersburg is a joint Swedish-Russian enterprise with production technology using modern high-quality equipment;
• Sudislavsky Welding Materials Plant, Kostroma Region, firmly holds first place in the production of electrodes in the price-quality category.

TsL brand electrodes produced in Ukraine and Belarus are not inferior in quality to the best Russian ones, but have a higher price. The consumables from the Svetlogorsk Electrode Plant of the Republic of Belarus are in greatest demand. The products have quality certificates confirmed in the CIS countries. The brands of this company are popular among Russian welders: Monolit, Continent, Arsenal.

Electrodes 29/9

LEZ-29/9 electrodes are intended for joining difficult-to-weld steels. Not only identical, but also dissimilar steels can be welded together. In this case, the manual arc method is used. AC and DC current can be used. Consumables cross-section size: 2.5; 3.0; 4.0 millimeters.

Advantages and disadvantages

The advantages and disadvantages of TsL brand consumables are largely related to their main coating.

Positive characteristics:

• the possibility of crack formation is minimized;
• due to the reduction of oxygen and hydrogen in the welding zone, the electrode metal is evenly mixed with the base metal, forming a weld with plastic properties;
• the low ability of the base coating to oxidize allows alloying during the welding process;
• lower toxicity of the base coating compared to the acidic one.

Electrodes TsL 9

List of disadvantages:

• the need to keep a short arc when welding, a long one has low combustion stability;
• short arc welding creates problems for beginners; TsL brand electrodes are more used by professional welders;
• the humidity of the coating creates conditions for unstable arc operation and leads to sticking of the electrodes;
• To obtain a high-quality seam, it is necessary to remove scale and other contaminants, and then degrease the welding edges.

SSSI consumables

LEZ welding electrodes include such widely popular consumables as UONI-13/55. It is possible to connect with each other critical products that will be operated at low temperatures. When using UONI-13/55, it is possible to obtain a plastic seam with sufficient impact strength. The durability and toughness of the seam is ensured by a wire rod made of low-carbon steel.

The main advantage of this type of electrodes is that the seam when working with them is resistant to cracking. It also contains a reduced amount of hydrogen. The recommended technology when using them is a short arc. Lengthening the arc will negatively affect the quality of the seam.

The coating UONI-13/55 does not contain organic inclusions, so they can be calcined at high temperatures, ensuring immunity to moisture.

General information

There are several brands of electrodes of this type. The difference mainly lies in the composition of the rod material. But there is a lot in common. The letter “C” in the name is the initial letter in the abbreviation “TsNIITMASH”. This production association was the first to develop electrodes of this type. The next letter “L” refers to the scope of application, and means that this kind of consumables are used for welding alloy steels. They can also be used to connect steel parts that contain a significant carbon content.

They have a basic type of coating, which can be thick or even very thick. Most brands make it possible to weld in various positions, excluding moving the electrode down. The most effective is to operate on direct current, with reverse polarity set. Welding with alternating current does not lead to good results, so it is not used.

The most famous manufacturers of this type of electrodes are “LEZ”, “Electrod”, “Sudislavsky Zavod”. All produced electrodes comply with the requirements of GOST 10052-75. As a rule, these products have quality certificates.

The brand designation contains the name of the enterprise where the electrodes were produced, for example, LEZ TsL-11 electrodes. Particularly valuable is the ability to weld stainless metals, which many other types of electrodes cannot do. It should be taken into account that the composition of the chemical elements of the electrode must correspond to those of the base material.

The advantages of electrodes of this type include high welding productivity and low loss due to spattering of hot metal. A large range of sizes ensures welding of parts of various thicknesses. To reduce the likelihood of overheating during the process of joining parts, the electrodes are not made too long. Their range is 200-350 millimeters. Welding should be done with a short arc length.

The advantages include:

1. Minimal possibility of cracks forming in the seam.
2. A small content of oxygen and hydrogen in the welding zone, which promotes uniform mixing of the metals of the part and the electrode, and the formation of a plastic seam.
3. Arc stability.
4. The base coating ensures minimal possibility of oxidation.
5. Low toxicity ensuring welder safety.

To form a high-quality seam, preliminary cleaning of the surfaces to be joined from dirt and stains, and further degreasing is required. Before starting welding, it is necessary to calcinate to remove excess moisture. Its time and temperature for different modifications can be found in the operating instructions.

There is a need to strictly adhere to the welding regime. Too high a current will lead to overheating of the electrode, which will contribute to unwanted deviations from the correct course of the welding process.

To reduce the likelihood of too much shrinkage, which creates large stresses inside, leading to cracks beginning to form in the seam, a certain gap should be maintained between the workpieces. This will reduce the negative impact of shrinkage.

Electrodes TsL-11

LEZ TsL-11 consumables are used for manual arc welding. They have proven themselves well in joining corrosion-resistant steels. They are operated using direct current. Welding must be done with a short arc. Coverage is basic.

The advantage of these consumables is that the seam obtained by using them is highly resistant to corrosion when used in unfavorable conditions.

Application

So, you know that maka TsL-11 is often used for welding special types of steels and critical structures. But this information is not enough to make your choice. How good are these electrodes? Is it possible to cook stainless steel?

Our answer: yes. These are real stainless steel electrodes. They are literally designed for welding stainless steels. They are also designed to work with metals that must withstand aggressive environments and high temperatures. It is when welding such metals that these electrodes reveal their full potential.

Summary

The choice: to take or not to take electrodes from LEZ depends only on you. If we take the indicators price: quality, we get a good ratio.

Here habit comes to the fore, as in the saying about taste and color. For family craftsmen or debutants in the field of welding, the purchase of these electrodes will be profitable.

I spoiled it, took another one, without straining the family budget too much or without bankrupting the employer. Do you already have an opinion on this matter? Add it to the comments! And success to all buyers of welding rods from LEZ!

LEZ, Losinoostrovsky Electrode Plant

Where to buy LEZ electrodes

“LEZ Trading House” is one of the largest suppliers of welding materials. The assortment is distinguished by its wide range and high quality. Most of the range consists of electrodes for various purposes. This category is especially in demand. The company has won a significant market share in Russia, Ukraine and the CIS countries.

The success is due to several factors. Clearly established goals and objectives. A strictly formulated marketing strategy includes balanced pricing, intelligent use of competitive advantages and a holistic management concept. Understanding customer needs and establishing reliable relationships with customers.

The company has a developed network of regional warehouses: Yekaterinburg, St. Petersburg, Krasnodar, Khabarovsk, Irkutsk, Krasnoyarsk, Novosibirsk, Omsk, Surgut, Chelyabinsk, Ufa, Izhevsk, Naberezhnye Chelny, Nizhny Novgorod, Yaroslavl, Samara, Saratov, Volgograd, Rostov-on-Don -Don, Pyatigorsk, Voronezh, Orel, Smolensk, Murmansk.

LEZ electrodes are the key to success and durability

Losinoostrovsky Electrode Plant is considered a well-known manufacturer of high-quality electrodes, the demand for which is very high in Russia and all CIS countries. The plant produces various types of products for various types of welding and any materials. The company controls the full production cycle: from the selection of raw materials to the exit of the finished product from the assembly line, which allows us to confidently assert its quality.

The plant has about sixty-five years of experience in the production of welding materials on its side, which manufacturers can boast of. You can safely trust the products of the Losinoostrovsky plant for any welding: from installing the most complex structures to welding various alloys and materials. Recently, the plant has expanded its range of welding electrodes, mastering new types of materials, which has allowed it to increase production volume by 20%. And besides this, the operating efficiency of welding equipment has significantly increased when using new LEZ electrodes. The modernization and expansion of production did not end there; they happen every year. The product range of the Losinoostrovsky plant makes it possible to select welding electrodes for working with various materials and in a wide variety of conditions.

Losinoostrovsky electrodes provide maximum reliability of seams, and are also highly convenient to use, which is important in conditions of limited time.

Carefully preserving traditions and making maximum use of the achievements of scientific and technological progress, Losinoostrovsky Electrode Plant controls about 20% of the welding electrode market in Russia. The quality and affordable price of the finished products of the Losinoostrovsky plant are confirmed by the demand for them from contractors from all over the CIS, Europe and the world. An important role in occupying such high positions is played by the presence of the international certificate ISO 9001:2000, which guarantees that the company’s products meet all international standards. High-quality welding electrodes contribute to long-term operation of any welding equipment. When choosing, you should take into account that LEZ electrodes have another very good property - they can be used not only to work with domestic welding equipment, but also with foreign ones, which will maintain a smooth pace of work and protect against unpleasant situations.

LLC “Trading House “LEZ” is located at:

• Moscow, Khibinsky proezd, 3.
• Secretariat –.
• Secretariat email –
• Sales department (multi-channel number); 8 (499) 183-14-43;;.
• Sales department email –
• Department of Foreign Economic Activity –.
• The Development centre -.
• Human Resources Department -
• Accounting –.
• Purchase department -.
• Website – https://www.electrode.ru/.

Range:

• Wire for gas welding.
• Welding wire SV-08G2S.
• Welding electrodes UONI.
• Electrodes for surfacing on working surfaces of products (LEZ): ANP-13.
• OZN-400M.
• OZN-300M.
• TsNIIN-4.
• LEZ-4.
• TsN-12M ().
• TsN-6L.
• UONI-13/NZh/20X13.
• OZN-6.
• T-620.
• T-590 (for direct current).
• NR-70 (for stainless steel).

Where to buy LEZ electrodes

Properties of stainless steel

Stainless steel has a low heat conductivity coefficient. Therefore, during welding work, heating of the local area is required to form a uniform seam. To achieve the required technical characteristics, it is necessary to install high currents on the welding machine.

To prevent overheating or scale, it is necessary to make a larger gap when joining parts than in the case of welding steel workpieces. The seam absorbs significant deformation loads during the cooling process, due to which the main structural elements maintain their geometry.

A welding electrode with a specially selected composition for specific alloys avoids overheating of the main rod. That is, the resistance of the metals is approximately the same, due to which there is no overheating process.

Storage

The electrodes are supplied in a shrink film that prevents moisture from entering. But these measures may not be enough if storage conditions are incorrect. To ensure that your products last as long as possible, you should keep them in a room with little humidity. The temperature in which they will be located should not be lower than 15°C.

It is also worth making sure that there are no mechanical impacts on the electrodes. Damage to the coating can significantly reduce the quality of the rods.

Marking of electrodes on stainless steel

According to the requirements of interstate standards, all electrodes must be marked with the following information:

• Purpose of the product;
• Type of coverage;
• Polarity;
• Maximum current;
• Operating voltage.

In addition to the above information, the packaging must contain information about the manufacturer and the expiration date of the product.