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Welding electrodes RS-39

Terms of use
  • designed for welding in all spatial positions in a circumvertical way from top to bottom
Special properties
  • provide high resistance of the weld metal to the formation of pores, lengthen the arc, allow welding with an inclined edge of the base metal of at least 15%
  • the welding seam is strong and resistant to scale formation
  • high heat resistance
  • ensures uniform strength welded joints of almost all grades of heat-resistant steels
  • the deposited metal is not prone to the formation of hot cracks
  • perform welding with a short arc, cleaning the edges before welding
  • surfacing coefficient: 0,13…0,15 g/A•min
  • consumption of electrodes per 1 kg of deposited metal: 1,4…1,6 kg
For manual arc welding on direct current reverse polarities of heating surfaces of boiler units, as well as root ones layers of seams, joints of thick-walled pipelines made of heat-resistant steels of the pearlitic class of grades 12Х1МФ and 15Х1М1Ф, operating under temperatures up to 585˚С.
Package Weight
First select diameter
Package Weight
First select diameter
Coating type
basic
CHEMICAL COMPOSITION OF DEPOSITED METAL, %
According to AWS A5.1 / Typical Results
C
Carbon
0.09
Mn
Manganese
1
Si
Silicon
0.35
Cr
Chromium
1.1
Mo
Molybdenum
1.1
V
Vanadium
0.2
WEDGE METAL MECHANICAL PROPERTIES
According to AWS A5.1 / Typical Results
  • Tensile strength, MPa ≥ 590
  • Yield point, MPa ≥ 435
  • Relative elongation, % ≥ 15
Baking before welding
  • permissible moisture content in the coating before use is not more than 0.4%
  • in case of electrode coating wetting above the norm - dry for 60 minutes at 400±10 °С
Welding modes
Welding current strength, A for electrodes with a diameter of, mm
2.5
60 – 90

Welding should be carried out with direct current of reverse polarity, “+” on an electrode with an arc voltage of 20 - 25 V.

Position of seams during welding
pa
pb
pc
pf
pe
pd
Package Weight
First select diameter
Package Weight
First select diameter
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