Elektrodai AV-307 APL Ø3.2mm (1.0 kg)

Universal high productivity electrodes. Core of electrodes consists of low carbon not alloyed steel. Fusion happens through flux.

Welding positions:

• 2,5 mm  In all positions, exept vertical downwards.
• 4,0 mm Lower, horizontal, upwards on the planes inclined to 300.
  
  Type of current and polarity:
  Alternating current, when voltage of idle run is not lower than 56V. Direct current of any polarity.

  Welding current:

  Ø, mm	2.5	3.2	4.0	5.0
  I, A	90-130	120-180	160-240	200-300

All weld metal composition (%):

All weld metal mechanical properties:

Conditional fluidity limit: Rp0,2  350 ÌPa;
Intensity limit:    Rm   500 ÌPa;
Relative extention:    A5   25 %;
Solidity: after welding:        180 -200
HB, after mechanical solidification:    38 - 42 HRC.

Good welding-technological features.
High resistance of alloyed metal against fracture forming. Alloyed metal is mechanically solidified.

While welding to avoid huge mixing of metals.
While welding using constant direct polarity current a greater welding is received (to use lower currents!), using opposite polarity current - lower mixing of metals, using alternating current intermediate version. While welding the thick, more solidified, hardly alloyed steels the pre-heating of main metal is recommended till 200-300°C. In other cases pre-heating is not necessary.
When flux gets moisture, electrodes are to be dried in 300°C temperature for 1 hour.