TM Arsenal

MR-3 ARS (E46) TM ARSENAL
PURPOSE AND SCOPE OF APPLICATION
ANO-21 electrodes are designed for manual arc welding of structures made of carbon steel grades supplied according to DSTU 2651/GOST 380 (St 0, St 1, St 2, St 3) of all degrees of deoxidation – "KP", "PS", "SP" and GOST 1050 (05kp, 08kp, 08ps, 08, 10kp, 10ps, 10, 15kp, 15ps, 15, 20kp, 20ps, 20).

APPLICATION CONDITIONS
The surfacing coefficient is 7.0–8.0 g/A·h. The consumption of electrodes per 1 kg of deposited metal is 1.65 kg. The electrodes are designed for welding angular, butt, overlapping joints in all spatial positions, including vertical seams in a top-down manner. It is possible to use ANO-21 electrodes for welding the root seam of a metal of large thickness.
Top-down welding is performed by leaning, while the electrode should be located in the bisector plane at an angle of 40-70 ° to the welding direction. Welding with an elongated arc on non-cleaned surfaces is allowed.

SPECIAL PROPERTIES
ANO-21 electrodes guarantee high welding and technological properties, namely easy initial and re-ignition of the arc, formation of a smooth seam, easy separation of the slag crust. The slag in the slag bath does not interfere with the welding process. The deposited metal is marked by high resistance to external influences even at low temperatures. The electrodes can be used for welding water pipes and gas pipelines of low pressure.

CALCINATION BEFORE WELDING
Under normal storage conditions, they do not require calcination before welding. In case of humidification, calcination before welding:
120 ± 10 ° C 40 min.

TYPE OF COATING
rutile

CHEMICAL COMPOSITION OF THE DEPOSITED METAL
Mn - 0,50-0,80
Si - ≤0,3
C - ≤ 0,1
P - ≤ 0,045
S - ≤ 0,040

MECHANICAL PROPERTIES OF THE SEAM METAL
Temporary resistance, MPa - 400-600
Yield strength, MPa - ≥ 380
Elongation - ≥20
Impact strength, J / cm2+20 S - ≥ 78
The energy of the absorbed impact, Ld 0 S - ≥ 47

Welding should be carried out with a direct current of any polarity (reverse is recommended, "+" on the electrode) or alternating current from a transformer with an idle voltage of at least 50 V.

PACKAGING DATA
Diameter, mm - 3.00;
Length, mm - 450;
Number of electrodes in a pack, pcs - 83-85;
Weight, kg - 2.5;