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4 мм
2.00 кг
1 package
106.00UAH.
60+ kg order
100.00UAH.
упаковок
106.00 UAH.

COATING TYPE - Basic with iron powder

AWS A 5.1:E 7018-1 H4R ISO 2560-А-E 42 4 В 42 Н 5 ГОСТ 9466-75

Э 50А–УОНИ-13/55 ПЛАЗМА H4R - Ø-УД

Е 515 БЖ 26

PURPOSE AND FIELD OF APPLICATION

Electrodes UONI 13/55 Plasma H4R designed for welding critical metal structures, boilers, and tanks operating under high pressure, pipelines,  for shipbuilding, etc. The electrodes are resistant to moisture.

APPLICATION CONDITIONS

Designed for welding in all spatial positions, except vertical-down, critical structures, and pipelines made of carbon and low-alloy steels with a tensile strength of 500 MPa to 640 MPa, especially if it is necessary to provide welded joints hot cracks resistance.

SPECIAL PROPERTIES

A special coating prevents moisture absorption, reduces the porosity and guarantees a low hydrogen content in welded metal. Due to the smooth volt-ampere characteristic, a stable arc is achieved during operation. Safe advantages – excellent weldability, easy slag crust separation, low spattering loss.

Special feature: electrodes UONI 13/55 Plasma H4R do not absorb moisture for the first 10-12 hours after opening the pack. Due to this, they do not require redrying before use and are characterized by high strength of metal seam, with special metallurgical purity and low hydrogen content in welded metal. 

REDRYING BEFORE WELDING 

At the normal storage conditions, redrying is not required. In case of moisture redrying is made at 400-420ºC for 60 min. Moisture content in the coating should not exceed 0,3%. 

 

CHEMICAL COMPOSITION OF WELD METAL, %

Mn Si C P S
1,10-1,50  ≤ 0,40-0,70 ≤ 0,09 ≤ 0,030 ≤ 0,020

MECHANICAL PROPERTIES

Tensile strength, MPa Yield strength, MPa Elongation, %

Impact strength, J / сm²

+20 ˚С

Absorbed striking energy, J

-40 ˚С

 

500-640 ≥ 420 ≥ 26 ≥ 180 ≥ 47

Welding should be done with DC of reverse polarity (“+” on electrode) or with AC current from a transformer with open-circuit voltage 70±10 V.

 

PACKAGING DATA

UONI 13/55 Plasma H4R are packed in 2 kg vacuum packing. 

Diameter, mm Length, mm Welding current, A Number of electrodes in package, pc. Weight of packing, kg
2.0 300 40-80 164-167 2.0
2.5 350 70-110 104-113; 208-226 2.5
3 350 80-150 85-88 2; 5
3.2 350 90-170 27-29; 68-71 2.5; 5
4 450 120-200 71-74 5
5 450 170-250 47-50 5

 

WELDING POSITIONS

      

 EN ISO 6947

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