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Електроди зварювальні Моноліт ТМУ-21У

AWS A5.1: E7015
EN ISO 2560-A-E 42 A B 2 2
CONDITIONS OF USE
  • welding with electrodes is carried out on a direct current of reverse polarity in all spatial positions, except vertical from top to bottom
  • welding is performed on a short length of the arc or resting on the cleaned edges
SPECIAL PROPERTIES
  • provide high resistance of the weld metal to the formation of pores and increase the length of the welding arc
  • surfacing coefficient: 0,17 …0,18 g/A•min
  • consumption of electrodes per 1 kg of deposited metal: 1,3…1,4 кг
Electrodes of the TMU-21U brand are designed for welding responsible metal structures and pipelines made of carbon and low-alloy steels of thermal and nuclear power plant equipment
Package Weight
First select diameter
Packaging data
Diameter, mm Length, mm Number of electrodes in a pack, pcs. Pack weight, kg
3.0 350 92…96 2.5
4.0 450 82…86 5.0
Package Weight
First select diameter
Type of coating
basic
Weld metal chemical composition, %
According to AWS A5.1 / Typical results
C
Carbon
≤ 0,12
Mn
Manganese
0,70…1,0
Si
Silicon
0,20…0,43
P
Phosphorus
≤ 0,035
S
Sulfur
≤ 0,030
Weld metal mechanical properties
According to AWS A5.1 / Typical results
  • Tensile strength, MPa ≥510
  • Yield strength, MPa ≥ 420
  • Elongation, % ≥ 20
  • Impact strength KCU +20 ˚С, J /cm² ≥ 130
Re-drying before welding
  • permissible moisture content in the coating before use is no more than 0.4%
  • in case of wetting of the electrode coating above the norm - dry for 60 minutes at 400±10 °С
Welding parameters
Welding current strength, A for electrodes with a diameter of, mm
3.0 mm 4.0 mm
80…110 110…150
Welding should be carried out with a direct current of reverse polarity, "+" on the electrode with a voltage arc of 20...25 V.
WELDING POSITIONS
PA
PB
PC
PF
PE
PD
Package Weight
First select diameter

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