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UONII 13/55

WELDING ELECTRODES UONII 13/55 (diameter 2,5; 3; 4; 5 mm)

CLASSIFICATION:E50A in accordance with GOST 9466

LEGEND: E50A - UONII 13/55 - Ø - UD
                             E 514 - B20

TECHNICAL REQUIREMENTS: GOST 9466-75, GOST 9467-75, TU BY 100034500.026-2010

COATING: main

PURPOSE:

Designed for welding of critical constructions made from carbon and low-alloy steels, when the metal joints make high demands on ductility and toughness. It recommended for welding structures operating at low temperatures. In all spatial positions except the top down, the seam direct current reverse polarity.

CHARACTERISTICS Electrodes:

arcing

sustainable;

splashing degree

small

formation of the joint

good;

Separation of the slag crust

good

The tendency of the weld metal to pore formation

low;

deposition rate (in the lower position of the weld)

9.0 - 9.5 g / Ah;

deposition rate (electrode diameter 4.0 mm)

1.2 - 1.6 kg / h;

Electrode consumption per 1 kg of weld metal

1.7 kg;

Mechanical properties of weld metal (at 20 ° C):

Tensile strength, MPa

Yield strength, MPa

Relative extension, %

Impact toughness J / cm2

500

410

20

130

Chemical composition of deposited metal:

Element content,%

Carbon

Manganese

Silicon

Sulfur

Phosphorus

0.12

0,7-1,20

0,20-0,50

<= 0.030

<= 0.035

DIRECTIONS FOR USE:

Provide a weld metal with a special purity steel and low hydrogen content. Very low tendency to hot cracking crystallization. Floor-UONII 13/55 welding electrode provides stable, good arc - well suited for welding in difficult conditions.

WELDING MODES:

Electrode diameter mm

Welding current, A

joint position

Underwear

vertical

ceiling

2.5

60-80

50-70

50-70

3

90-120

80-100

70-90

4

130-160

130-140

110-120

5

180-220

150-170

-

Welding UONII-13/55 produced only a short length of the arc of cleared edges. Before use, the electrodes calcined at a temperature of 350-380 ° C; 1-2 hours.

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