Welding boiler steel
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Welding types of boiler steel
For permanent connection of parts of boiler steel is used electric welding - manual, semi- and automatic (the last two are made under a layer of flux). Manual welding is low-productive, so it is used only for welding small parts (e.g. for welding fittings), as well as the preliminary joining of blanks.) The most productive - automatic - welding of boiler structures is carried out on stationary frame-type welding stations. All boiler steel grades refer to the steels of the first group according to their weldability, so they ensure good quality of welds.
Grades of welding electrodes
Boiler steel grade steel |
Electrode brand | Welding wire brand |
12МХ; 15ХМ; А335Р11 |
TL-38, TL-39, TML-IU, TSU-2XM, TML-3U, SMV-95*, SMV-98*, SMV-96* Chromo 335 sq**, Chromo 910 sq** |
Св-08МХ, Св-08ХМА-2, Sv-08CGSMA. GOST 2246-70 |
12Х1МФ, 15Х1М1Ф |
TSL-39, TSL-20, TML-ZU, TSL-45 |
Св-08ХМФА-2, Sv-08ChMFA, Sv-08CGSMFA. GOST 2246-70 |
Evek GmbH offers to buy a wide assortment of boiler steel at an affordable price. We provide delivery of products to any point of the continent. Price is optimal.
Annealing modes
To avoid cracking of the material, welding electrodes are hardened before use. Hardening modes, depending on the brand of the electrode, are listed below:
Electrode brand | Annealing modes | |
Temperature, °С | Temperature, °C Temperature, °C Duration, h | |
TM-39, TML-1U, TSU-2HM, TML-ZU, TSL-20, TSL-45 | 380 ± 20 | 2,0+ 0,5 |
ФА-400/10У, ЕА-400/10T, ЦТ-26, ЦТ-26M, ЦТ-15, ЦТ-15K | 220 ± 20 | 1,0 + 0,5 |
After welding, the mechanical properties of the weld must be similar to those of the base metal.
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