PURPOSE AND FIELD OF APPLICATION
Electrodes for manual arc welding, MP-3 designed for welding of structures made of low carbon steels according to ДСТУ 2651 / ГОСТ30 (Ст0 і Ст1, Ст2, Ст 3, Ст all, Ст 20 degrees deoxidation "КП", "ПС", "СП") and ГОСТ 1050 (05кп, 08кп, 08пс, 08, 10кп, 10пс, 10 15кп, 15, 20кп, 20пс, 20).
APPLICATION CONDITIONS
Deposition rate factor – 8-8,5 g/А.hr. Electrode consumption per 1 kg of deposited metal is 1,7 kg. Suitable for corner, butt and fillet joint types on metal with 3-20 mm thickness. Electrodes with diameter range from 3 mm to 4 mm designed for welding in all positions, 5 mm diameter electrodes – for horizontal flat, horizontal down hand, transverse and vertical up positions.
REDRYING BEFORE WELDING
At the normal storage conditions, redrying is not required. In case of moisture the redrying is made at 140±10°С for 40 min.
CHEMICAL COMPOSITION OF DEPOSITED METAL, %
| Mn |
Si |
C |
P |
S |
| 0.40-0.65 |
≤ 0.15-3.5 |
≤ 0.11 |
≤ 0.035 |
≤ 0.040 |
MECHANICAL PROPERTIES OF WELD METAL
| Tensile strength, MPa |
Yield strength, MPa |
Elongation, % |
Impact strength, J /сm²
+20 ˚С
|
| ≥ 450 |
≥ 380 |
≥ 18 |
≥ 78 |
Welding should be done with direct current of any polarity (reversed polarity is recommended, “+” is on an electrode) or with AC current from a transformer with open-circuit voltage not less than 70V.
PACKAGING DATA
| Diameter, mm |
Length, mm |
Welding current, А |
Number of electrodes in package, pc. |
Weight of packing, kg |
| 3 |
350 |
80-100 |
93-98 |
2.5 |
| 4 |
450 |
110-130 |
85-88 |
5 |
| 5 |
450 |
150-170 |
56 |
5 |
WELDING POSITIONS
PA PB PC PF
ДСТУ EN ISO 6947
