Welding flux is a granulated powder with a grain size from 0.2 to 4 mm, designed for welding processes. In the process of welding, the granules melt and emit gas, and then during cooling they form a crust of slag.
Welding fluxes are classified by production technology, chemical composition, purpose, and other characteristics.
Our company produces fused welding fluxes produced by the method of double refining of the melt and the use of mineral waste welding production. A new method of cooking fluxes allowed to improve the welding and technological properties of fluxes, reduce the need for natural raw materials, and also solve the environmental problem.
NOMENCLATURE OF FLUX GRADES
- Manganese-silicate
- АН-348-А
- ISO 14174-S F MS 1 AC H10
- ISO 14174-S F MS 1
- ТУ У 20.5-00293255-006:2020
- ГОСТ 9087-81; ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Manganese-silicate
- АН-348-АМ
- ISO 14174-S F MS 1 AC H10
- ISO 14174-S F MS 1
- ТУ У 20.5-00293255-006:2020
- ГОСТ 9087-81; ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Manganese-silicate
- АН-348-АПМ
- ISO 14174-S F MS 1 AC H10
- ISO 14174-S F MS 1
- ТУ У 20.5-00293255-006:2020
- ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Calcium-silicate
- АН-47
- ISO 14174-S F CS 1 AC H10
- ISO 14174-S F CS 1
- ТУ У 20.5-00293255-006:2020
- ГОСТ 9087-81; ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Calcium-silicate
- АН-47Д
- ISO 14174-S F CS 1 AC H10
- ISO 14174-S F CS 1
- ТУ У 20.5-00293255-006:2020
- ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Calcium-silicate
- АН-47ДП
- ISO 14174-S F CS 1 AC H10
- ISO 14174-S F CS 1
- ТУ У 20.5-00293255-006:2020
- ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Manganese-silicate
- ОСЦ-45
- ISO 14174-S F MS 1 AC H10
- ISO 14174-S F MS 1
- ТУ У 20.5-00293255-006:2020
- ГОСТ 9087-81; ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Manganese-silicate
- ОСЦ-45М
- ISO 14174-S F MS 1 AC H10
- ISO 14174-S F MS 1
- ТУ У 20.5-00293255-006:2020
- ГОСТ 9087-81; ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Manganese-silicate
- АНЦ-1А
- ISO 14174-S F MS 1 AC H10
- ISO 14174-S F MS 1
- ТУ У 20.5-00293255-006:2020
- ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Manganese-silicate
- АН-60
- ISO 14174-S F MS 1 AC H10
- ISO 14174-S F MS 1
- ТУ У 20.5-00293255-006:2020
- ГОСТ 9087-81; ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Manganese-silicate
- АН-60М
- ISO 14174-S F MS 1 AC H10
- ISO 14174-S F MS 1
- ТУ У 20.5-00293255-006:2020
- ТУ У 20.5-00293255-006:2020, ГОСТ Р 52222-2004
- Aluminate-base
- АН-20С
- ISO 14174-S F AB 2 DC H10
- ISO 14174-S F AB 2
- ТУ У 20.5-00293255-006:2020
- ГОСТ 9087-81
- Aluminate-base
- АН-26С
- ISO 14174-S F AB 2 AC H5
- ISO 14174-S F AB 2
- ТУ У 20.5-00293255-006:2020
- ГОСТ 9087-81
- Aluminate-base
- АН-26П
- ISO 14174-S F AB 2 AC H5
- ISO 14174-S F AB 2
- ТУ У 20.5-00293255-006:2020
- ГОСТ 9087-81
- Aluminate-rutile
- АН-67
- ISO 14174-S F AR 1 AC
H5 - ISO 14174-S F AR 1
- ТУ У 20.5-00293255-006:2020
- ТУ У 20.5-00293255-006:2020
Decoding of the complete flux designation according to the standard:
14174-Index 1Index 2Index 3Index 4Index 5Index 6
14174 - standard number;
Index 1 - welding method, 'S' - submerged arc welding;
Index 2 - flux production method, 'F' - fused flux;
Index 3 - flux type, characterizing chemical composition, 'MS' - manganese-silicate, 'CS' - calcium-silicate, 'AB' - aluminate-base, 'AR' - aluminate-rutile;
Index 4 - flux class (application area), Class 1 fluxes are designed for arc welding and surfacing of unalloyed and fine-grained steels, high-strength steels and creep-resistant steels, Class 2 fluxes are designed for arc welding and surfacing of corrosion-resistant and heat-resistant steels and/or nickel and nickel-based alloys;
Index 5 - index for the type of current, 'DC' is used to indicate direct current, 'AC' is used to indicate alternating current;
Index 6 - index to indicate the level of hydrogen content in the weld metal, 'H5' - hydrogen content in the weld metal not more than 5 ml/100 g, 'H10' - hydrogen content in the weld metal not more than 10 ml/100 g.
The short flux designation according to the standard consists of the first four indices of the full designation.
| Flux grade | Chemical composition in % | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SiO2 | MnO | CaO | MgO | Al2O3 | CaF2 | TiO2 | ZrO2 | Fe2O3 | S | P | C | |
| no more | ||||||||||||
| Flux type according to ДСТУ EN ISO 14174 - manganese-silicate, MS | ||||||||||||
| АН-348-А | 40-44 | 31-38 | < 12 | < 7 | < 13 | 3-6 | - | - | 2,5 | 0,11 | 0,12 | - |
| АН-348-АМ | ||||||||||||
| АН-348-АПМ | 0,09 | 0,10 | 0,10 | |||||||||
| АНЦ-1А | 35-45 | 25-40 | < 18 | < 8 | < 13 | 3-8 | - | - | 2,5 | 0,10 | 0,12 | - |
| АН-60 | 40-46 | 36-41 | < 10 | < 3 | < 13 | 5-9 | - | - | 0,9 | 0,05 | 0,05 | - |
| АН-60М | ||||||||||||
| Flux type according to ДСТУ EN ISO 14174 - calcium-silicate, CS | ||||||||||||
| АН-47 | 28-33 | 11-18 | 13-17 | 6-10 | 9-15 | 4-7 | 1,1-2,5 | < 3,0 | 0,05 | 0,08 | - | |
| АН-47Д | 0,04 | 0,07 | 0,10 | |||||||||
| АН-47ДП | 1,1-5,0 | 0,05 | ||||||||||
| Flux type according to ДСТУ EN ISO 14174 - manganese-silicate, MS | ||||||||||||
| ОСЦ-45 | 37-44 | 37-44 | < 10 | < 3 | < 13 | 5-9 | - | - | 2,5 | 0,11 | 0,14 | - |
| ОСЦ-45М | ||||||||||||
| Flux type according to ДСТУ EN ISO 14174 - aluminate-base, AB | ||||||||||||
| АН-20С | 19-24 | < 0,5 | 3-9 | 9-13 | 27-32 | 25-33 | - | - | 0,8 | 0,06 | 0,03 | - |
| АН-26С | 29-33 | 2,5-4,0 | 4-8 | 15-18 | 19-23 | 20-24 | - | - | 1,5 | 0,08 | 0,08 | 0,05 |
| АН-26П | ||||||||||||
| Flux type according to ДСТУ EN ISO 14174 - aluminate-rutile, AR | ||||||||||||
| АН-67 | 12-16 | 14-18 | < 10 | - | 35-40 | 11-16 | 4-7 | < 2,5 | 1,0 | 0,05 | 0,05 | 0,01 |
| Note 1. The content of iron oxides in fluxes of all grades is given in terms of iron (III) oxide. Note 2. The content of the sum of potassium and sodium oxides in the flux: АН-20С from 2,0% to 3,0%. Note 3. The content of B2O3 in the АН-67 flux is not more than 0,4%. |
||||||||||||
Fluxes are made in the form of uniform grains. The content of foreign particles (undissolved particles of raw materials, lining, coal, graphite, coke, metal particles, etc.) :
| Brand flux | The content of foreign particles in % by weight of the flux |
|---|---|
| АН-348-А, АН-348-АМ, АН-348-АПМ, АНЦ-1А, АН-60, АН-60М, АН-47, АН-47Д, АН-47ДП, ОСЦ-45, ОСЦ-45М |
no more than 0,3 |
| АН-20С, АН-67 | no more than 0,2 |
| АН-26С, АН-26П | no more than 0,1 |
| Brand flux | Grain structure | Grain color |
|---|---|---|
| АН-348-А, АН-348-АМ | Vitreous | From yellow to brown in all shades |
| АНЦ-1А | Vitreous | From light brown to dark brown in all shades |
| АН-47, АН-47Д | Vitreous | From dark brown to black in all shades |
| ОСЦ-45, ОСЦ-45М | Vitreous | From light gray and yellow to brown in all shades |
| АН-20С | Vitreous | From white to light gray and light blue in all shades |
| АН-26С | Vitreous | From gray to light green in all shades |
| АН-348-АПМ | Pumiceous | From light gray and yellow to brown and dark brown in all shades |
| АН-60, АН-60М | Pumiceous | From gray and light pink to yellow and light brown |
| АН-47ДП | Pumiceous | Matt black |
| АН-26П | Pumiceous | From light gray and light green to gray in all shades |
| АН-67 | Pumiceous | From light gray, gray and dark gray to light brown, brown and black in all shades |
The presence in the flux grains with a color that differs from the above:
| Brand flux | The presence of grains with a color that differs from the above in % by weight of the flux |
|---|---|
| АН-47, АН-47Д, АН-47ДП, ОСЦ-45, ОСЦ-45М, АН-60, АН-60М, АН-20С, АН-26С, АН-26П, АН-67 |
no more than 3 |
| АН-348-А, АН-348-АМ, АН-348-АПМ, АНЦ-1А |
no more than 10 |
| Brand flux | Grain size, mm |
|---|---|
| АН-348-АМ, АН-348-АПМ, ОСЦ-45М, АН-60М |
0,25 - 1,60 |
| АН-47, АН-47Д, АН-47ДП, АН-26С |
0,25 - 2,50 |
| АН-348-А, АНЦ-1А, ОСЦ-45, АН-20С, АН-26П, АН-67 |
0,25 - 2,80 |
| АН-60 | 0,35 - 4,00 |
The presence in the flux grains larger than, respectively, 1.60; 2.50; 2.80; 4.00 mm and grains less than 0.25 and 0.35 mm in quantities of more than 3% by weight of the flux are not allowed.
In coordination with the consumer it is allowed to produce flux with a grain size different from those indicated in the table. At the same time, grain sizes and tolerances should be specified in the order.
| Brand flux | Humidity in % of the flux mass |
|---|---|
| АН-348-АПМ, АН-47Д, АН-47ДП, АН-60, АН-60М, АН-20С, АН-67 |
no more than 0,05 |
| АН-47 | no more than 0,08 |
| АН-348-А, АН-348-АМ, ОСЦ-45, ОСЦ-45М, АНЦ-1А, АН-26С, АН-26П |
no more than 0,1 |
| Brand flux | Bulk density, g/cm3 |
|---|---|
| АН-47 | 1,4 - 1,8 |
| АН-47Д | 1,35 - 1,60 |
| АН-348-А, АН-348-АМ, АНЦ-1А, АН-20С, АН-26С, ОСЦ-45, ОСЦ-45М |
1,3 - 1,8 |
| АН-47ДП | 1,1 - 1,3 |
| АН-348-АПМ | 0,9 - 1,2 |
| АН-26П, АН-60, АН-60М, АН-67 |
0,8 - 1,1 |
- The arc should lego excited and stably lit
- Weld bead should have a smooth surface with a smooth transition to the base metal
- Slag should ensure good formation of weld metal rollers and be easily removed after cooling
- Pores and cracks on the surface of the weld bead are not allowed
Control of welding and technological properties of fluxes is carried out by agreement of the manufacturer with the consumer
- Quartz sand according to ДСТУ Б В.2.7-131
- Manganese ore concentrate according to regulatory documents in force in Ukraine
- Fluoride concentrate according to regulatory documents in force in Ukraine
- Slag, crushed stone according to the regulatory documents in force in Ukraine
- Periclase powder according to ГОСТ 24862
- Alumina according to ГОСТ 30558
- Dolomite according to the regulatory documents in force in Ukraine
- Rutile concentrate according to the regulatory documents in force in Ukraine
- Zircon concentrate according to the regulatory documents in force in Ukraine
- Ilmenite concentrate according to the regulatory documents in force in Ukraine
It is allowed to use similar types of raw materials of domestic and foreign production, which must comply with the regulatory documents in force in Ukraine, other documents stipulated by the current legislation of Ukraine
- Fluxes are packed in polypropylene bags, soft containers such as MKR according to the regulatory documents in force in Ukraine. The net weight of one bag from 20 kg to 50 kg, a big bag container - no more than 1000 kg
- In agreement with the customer, fluxes can be packaged in a different container according to the regulatory documents in force in Ukraine, ensuring the safety of the flux and its quality during transportation
- Export fluxes packaged in accordance with contract requirements
The allowable minus deviation of the net mass of fluxes from the nominal value shall not exceed 1%.
Deviations in the direction of increasing the number of products from the nominal are not limited.
Deviations in the direction of increasing the number of products from the nominal are not limited.
| Brand flux | Application |
|---|---|
| АН-348-А, АН-348-АМ, ОСЦ-45, ОСЦ-45М |
Sour fluxes of manganese-silicate type. They alloy the weld metal with silicon and manganese, therefore they can be used in combination with silicon-free welding wires of Св-08, Св-08A, Св-08GA, S1, S2 and other grades. Recommended for mechanized welding and surfacing of structures made of low-carbon unalloyed and low-alloyed steels for a wide range of applications with unalloyed and low-alloyed welding wires at operating temperatures up to minus 400 С. Fluxes of AN-348-A, AN-348AM grades with Fe2O3 content at the upper limit (2-2.5% wt.) are recommended only for welding with silicon-manganese-containing wires. Modifications of fluxes AN-348-A, AN-348-AM and OSC-45, OSC-45M with grain size 0,25-1,6 mm are designed for arc welding and surfacing with welding wires with diameter of 3 mm and less. |
| АН-348-АПМ, АН-60, АН-60М |
Sour fluxes of manganese-silicate type. They alloy the weld metal with silicon and manganese, therefore they can be used in combination with silicon-free welding wires of Св-08, Св-08GA, S1, S2 and other grades. 2. Recommended for mechanized welding and surfacing of structures made of low-carbon unalloyed and low-alloyed steels for a wide range of purposes with unalloyed and low-alloyed welding wires at operating temperatures up to minus 400 С, when it is necessary to ensure quality formation of the weld surface at increased welding speeds. |
| АН-47 | Neutral fluxes of calcium-silicate type. They provide insignificant alloying of weld metal with silicon (0.06% wt.) and manganese (0.06% wt.), its high purity by non-metallic inclusions and prevent the formation of stitch sulfides and oxysulfides in the weld metal. They are recommended for arc welding of construction and engineering structures of a wide profile, made of rolled low-alloyed, cold-resistant and weather-resistant steels with low-alloyed welding wires at the operating temperature of structures up to minus 700 С. |
| АН-47ДП | Fused pumice-like neutral fluxes of calcium-silicate type, produced by double refining. They are characterized by low content of harmful impurities - sulfur and phosphorus. Designed for high-speed welding of pipes made of fine-grained cold-resistant steels of ordinary and increased strength used for installation of large-diameter gas and oil main pipelines, as well as other welded structures for critical purposes - bridges, tanks, chemical and petroleum equipment. |
| АН-20С | Fused vitreous fluxes of the aluminate-base type. They are used for automatic arc welding of high-alloy steels and welding of alloy steels with appropriate welding wires. Recommended welding wires: PP-3Х2В8, PP-25Х5ФМС, Нп-30ХГГСА, СВ30Х25Н16Г7. |
| АН-26С | Fused vitreous fluxes of the aluminate-base type. They are used for automatic and semi-automatic arc welding of stainless, corrosion-resistant and heat-resistant steels with appropriate welding wires. Recommended welding wires: SV06X19N9T, SV01X19N9, SV08X19N10B. |
| АН-26П | Fused pumice-like fluxes of aluminate-base type. They are used for high-speed automatic and semi-automatic arc welding of stainless, corrosion-resistant and heat-resistant steels with appropriate welding wires: SV06X19N9T, SV01X19N9, SV08X19N10B and others. |