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Welding electrodes Monolith M-312

AWS A5.4: E312-16
EN ISO 3581-А- E 29 9 R 3 2
Terms of use
  • are used in all spatial positions except for vertical down one, with direct current of reversed polarity (“+” on the electrode) or with alternating current from a transformer with an idle voltage of 50±10 V.
Special properties
  • can be used as an intermediate level for alloy application, which prevents from abrasion, in deposition repair welding. Repair of gear teeth, conveyors, fans, pumps, valve seats, springs, tools, such as hot treatment chucks, stamps and rollers
  • carbon and stainless steels joining
  • due to good corrosion and abrasion resistance, as well as high tensile strength, these electrodes are used in repair and maintenance of cars and driving gears, such as clutches, countershafts etc
  • high temperature of scaling formation of deposited metal allows to use these electrodes for welding and deposition of products, operating at high temperatures. Electrodes could be hardened mechanically (by hammering).
Electrodes are designed for manual arc welding of austenitic-ferritic steels as well as for dissimilar welding, welding of difficult-to-weld and chemically unknown steels, e.g. tempered, high-carbon, tool, matrix and spring steels – shafts, as well as tools operating at high temperatures, furnace parts. These electrodes are also used for depositions of rails, dies, and tools for steam treatment, butter layers application prior to deposition, cutting tools repair welding. Electrodes are recommended to be used for both hard facing deposit or dissimilar welding of stainless, non-alloy and low-alloy steels of AISI 308, 316, 347, 318, 309, 310 grades.
Package Weight
First select diameter
Packaging data
Diameter, mmLength, mmNumber of electrodes in a pack, pcs.Pack weight, kg
3,035031 – 331,0
4,035018 – 201,0
Package Weight
First select diameter
Coating type
rutile
CHEMICAL COMPOSITION OF DEPOSITED METAL, %
According to AWS A5.1 / Typical Results
C
Carbon
0.12
Mn
Manganese
1.1
Si
Silicon
0.7
Cr
Chromium
28
Ni
Nickel
9
WEDGE METAL MECHANICAL PROPERTIES
According to AWS A5.1 / Typical Results
  • Tensile strength, MPa ≥650
  • Yield point, MPa ≥450
  • Relative elongation, % ≥15
Baking before welding
  • permissible moisture content in the coating before use is no more than 0.1%
  • if the electrode coating is moistened above the norm, dry for 60 minutes at a temperature of 250±10°C
Welding modes
Welding current strength, A for electrodes with a diameter of, mm
3.04.0
50 – 9090 – 140

Welding should be carried out with a direct current of any polarity, (reverse one with “+” on the electrode is recommended), or with alternating current from a transformer with an idle voltage of 50±10 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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