Types and characteristics of Monolith electrodes

Electrodes Monolith RC

Electrode brand Monolit RC E46 is intended for manual welding in domestic and industrial conditions. Used for critical structures made of low-carbon steels using alternating and direct current. Electrodes can be used for installation welding. Work is carried out from all spatial positions.

Figure 1 — Electrodes Monolith

Monolith electrodes marked RC have a rutile cellulose coating. For the RC brand, the deposition coefficient is 9.5 g/Ah, and the consumption parameter is 1.75 kg. You can weld walls 3–20 mm thick with butt, corner and overlap joints. Consumables of this type can be used with household inverters and professional equipment.

When welding in the lower position, craftsmen advise holding the rod at an angle of 20–40°. Weld vertical seams with a short arc with the electrode tilted relative to the vertical at 40–70°, so that the slag will not flow in front of the arc.

Distinctive characteristics

In Monolit RC electrodes, it was possible to reduce the volume of harmful emissions by 28%. They can operate at the lowest currents from a household network. They are simple and easy to carry out welding work, so they are recommended for novice welders.

Positive characteristics:

• always stable and even arc;
• the seam turns out beautiful, with a uniform filling;
• easy ignition at the beginning and during operation;
• low metal spatter rate;
• the resulting slag is separated without much effort;
• when welding in hard-to-reach places, it is possible to bend the rod without compromising the quality of the seam;
• connecting non-critical parts does not require careful preparation;
• Traces of grease, oil, oxides, rust and other contaminants are allowed on the edges.

In conditions of high humidity, before welding, the rods are dried for half an hour at t = 110 °C.

Analogues are ESAB OK 46.00, Overcord, AV-31.

"Monolith RC"

Monolith RC electrodes are suitable for butt joints. Their characteristics are as follows: tensile strength 340 N per square meter. mm, minimum tilt angle is 35 degrees. It is also important to note that in this case a rutile coating is used. The maximum angle of inclination of the electrode is 70 degrees.

If you believe the opinion of experts, then the consumption of this brand is insignificant. The diameter of the specified electrode is 3 mm. Its relative elongation is at the level of 22%. The brand's sensitivity to contamination is insignificant. It is also important to mention the high deposition rate. Electrodes can be used to work with the pipeline. They are sold in packs of 1 kg, and they ask for about 340 rubles.

Monolith Professional

Electrodes Monolit Professional E50 are used for manual arc welding of products made of ordinary quality and low-alloy steel. They allow you to work under unfavorable conditions due to the formation of a gas bubble, which neutralizes moisture and creates the environment necessary for welding.

Figure 2 — Electrodes Monolith Professional

Therefore, they are successfully used for restoring water mains under pressure up to 1 atm and welding tanks, in shipbuilding, and for parts for general engineering purposes. The seam provides high mechanical characteristics.

Available in diameters of 2.5, 3, 4 and 5 mm. There are two standard sizes in length: 350 and 450 mm. They can be used to make corner and butt welds, as well as lap joints. The limitation on the thickness of the metal being connected is 1–20 mm.

Analogs are ESAB OK 43.32, Overcord S, Fincord, Lincoin Electric MGM-50K.

Specifications

The deposition coefficient is 8–9 g/Ah. For surfacing 1 kg of metal, 1.7 kg of consumables will be required. Rods with a cross-section of 2–4 mm allow you to work in all positions except vertical in the direction from top to bottom. To do this, take rods with a diameter of 5 mm.

For welding work, direct current of direct and reverse polarity is required. You can also use alternating current at an open circuit voltage of 50 V. Subject to storage conditions, they do not require calcination. Damp electrodes need to be dried at 110 °C for an hour.

Welding electrodes MONOLITH Professional f 4 mm

PURPOSE AND SCOPE

Welding electrodes MONOLITH Professional are intended for manual arc welding of structures made of carbon steel grades supplied in accordance with DSTU 2651-2005/GOST 380-2005 (St 0, St 1, St 2, St 3 of all stages of deoxidation - “KP”, “PS”, "SP") and according to GOST 1050-88 (05kp, 08kp, 08ps, 08, 10kp, 10ps, 10, 15kp, 15ps, 15, 20kp, 20ps, 20). Used for welding corner, stick and lap joints of metal with a thickness of 1.0 to 20.0 mm.

Conditions of use

Deposition rate – 8.0-9.0 g/Ah. Electrode consumption per 1 kg of deposited metal is 1.7 kg.

Electrodes with a diameter of 2.0 mm to 4.0 mm are intended for welding in all spatial positions except vertical “top-down”, and with a diameter of 5.0 mm - for lower, horizontal on a vertical plane and vertical method “bottom-up”.

CHEMICAL COMPOSITION OF WELD METAL

MECHANICAL PROPERTIES OF WELD METAL

SPECIAL PROPERTIES

The electrodes have the ability to weld in conditions unfavorable for other brands of electrodes. A gas bubble appears around the arc, which displaces water and provides acceptable conditions for the welding process, which makes it possible to weld damaged water pipes under pressure of up to 1 atm.

MONOLITH Professional welding electrodes provide easy initial and re-ignition. They are characterized by a calm and stable arc, low spatter, good slag separation, excellent seam formation, especially for welding sheet steel and steel structures subject to static and dynamic loads, welding tanks and pipelines, where high mechanical properties of seams are required.

WELDING MODES

Welding is carried out with direct current of any polarity (it is recommended to use reverse “+” on the electrode or alternating current from a transformer with an open circuit voltage of at least 50 V.)

PACKAGING DATA

ANALOGUES

CALCINATION BEFORE WELDING

Under normal storage conditions, no calcination is required before welding; in case of moistening, drying before welding: 110±5°С 60 min.

Welding electrodes Monolith Basic (Uoni-13/55)

Electrodes Monolit BASIC (UONI-13/55) are needed for connecting critical structures and pipes in places where increased resistance to the formation of hot cracks in joints is required, and the seams must meet high parameters of ductility and impact strength. They are used in shipbuilding, bridge construction and in the manufacture of high pressure vessels.

Figure 3 — Welding electrodes Monolith Basic (Uoni-13/55)

They have a basic coating with the addition of iron powder, which increases the efficiency of use by 20%. In application, they are characterized by a higher deposition rate - 10.5–11.5 g/Ah and reduced consumption - 1.58 kg. The finished seam has high strength and metallurgical purity, where the hydrogen admixture is minimal. Metal transfer occurs in a fine-droplet manner, which allows you to lay an even seam without slag getting into the weld pool.

Welding electrodes UONI-13/55 PLASMA

Type of coating – basic with iron powder

TU U 28.7-34142621-001:2008

Purpose and scope

UONI-13/55 PLASMA are high-quality electrodes that can be used for welding work in any spatial position. They are suitable for pipelines and critical structures. Products made from low-alloy and carbon steels having a tensile strength of 500-640 MPa can be processed. Electrodes become an ideal option when joint resistance to hot cracks is required. Most often, the products are used in ship repair, shipbuilding, bridge construction and for the manufacture of vessels resistant to high pressure.

Monolith OZL-6

Monolit OZL-6 electrodes are intended for welding austenitic stainless steels (08Х18Н10, 03Х18Н11), heat-resistant stainless steel (AISI 309, AISI 309S and 20X23H13, 08X23H13).

Scope of application: tanks and containers for liquid and bulk substances, equipment for the food and pharmaceutical industries, in the chemical or mining industries.

The OZL-6 grade is characterized by good weld quality, resistance to cracking and intercrystalline corrosion. During welding, the metal hardly spatters, and the slag layer quickly separates.

Monolith Special TsL-11

Special TsL-11 electrodes provide welding of critical products made of chromium-nickel and corrosion-resistant steels (12Х18Н10Т, 12Х18Н9Т, 08Х18Н12Т) used in aggressive conditions. The welding conditions are characterized by stability and high quality of the seam. Subsequent mechanical processing of welded parts is allowed.

They are used in the production of equipment for aggressive environments and high temperatures in the food and chemical industries. The weld is characterized by resistance to corrosion and intercrystalline cracks. Sandvik wire and coating with a low content of gases and harmful impurities are used as a base.

Specifications

The deposition rate of this brand is 11 g/Ah. It will take 1.7 kg of rods to fuse 1 kg of metal. Productivity parameter – 1.5 kg/hour. For calcination within an hour after moistening, a temperature of 200 °C is required. For electrodes Ø3 mm, the current is set to 50–90 A, for Ø4 mm – 110–150 A.

Preparation of edges before welding involves thorough cleaning of all types of contaminants. It is recommended to cook with a short arc and narrow rolls, excluding transverse vibrations. TsL-11 electrodes with a cross section of up to 4 mm operate with direct current of reverse polarity. Welding work is performed in all positions of the electrode, except vertical.

Reviews about "ANO-4"

These Monolith electrodes receive good reviews from customers. This grade is often used for working with carbon steel. It can also be used for surfacing. The consumption of deposited metal in this case is low. The maximum deviation of the nominal voltage with reverse polarity is 5.5 V.

The deposition rate of electrodes does not exceed 6 g. However, they still have disadvantages. First of all, this concerns high sensitivity to rust. The small angle of inclination of the electrode should also be taken into account. The specified brand is not allowed to be used for working with pipelines. You can buy electrodes in 1.5 kg packages for 450 rubles.

Reviews from welders

According to reviews from welders, Monolith electrodes are the best choice for those who are just trying to weld. They consistently catch the arc and produce an excellent seam. It is noted that they absorb less moisture than products from other manufacturers. Reducing toxicity is an important factor when working indoors. You won't have to breathe harmful gases.

Monolith electrodes are pliable in the welder’s hand. They light up immediately: just swipe across the metal and get a spark. With full coverage and the required modes, there is no sticking. With strong pressure, the materials of the two parts fuse, which makes the seam strong.

Novice welders complain that the arc is interrupted, after which it is difficult to restore it. But it’s not the electrodes that are to blame here, but the lack of experience and too high a current. Welding professionals and self-taught people note that Monolith products are a reasonable price-quality ratio. We will be glad to hear the opinion of our readers, as well as discuss it in the comments to this article.

Parameters of "ANO-36"

The specified Monolith electrodes have the following characteristics: diameter 3 mm, consumption - 1 kg of product per 1.7 kg of metal, deposition coefficient 9 g. In this case, the maximum deviation of the rated voltage does not exceed 4.5 V. The coating thickness is 1.2 mm. The rated voltage with reverse polarity is 55 V. These electrodes are not allowed to be used for pipeline work.

If you believe customer reviews, then the ceiling seam with their help turns out excellent. They can be used to operate with direct current. However, thick metal is not allowed for welding. When working with structural steel, there is quite a lot of spatter. It is also important to mention the brand's sensitivity to rust. You can purchase electrodes for a price starting from 500 rubles.