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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