COATING TYPE — Graphite-basic
| ТУ У 25.9-34142621-019:2019 | ISO 1071: E С NiFe – Cl 3 | AWS A5.15: E NiFe – CI |
SPECIAL PROPERTIES
The electrode provides a stable arc and minimal spatter. The deposited metal has high strength and hot cracks resistance. Therefore, this electrode is suitable for welding parts made of gray, malleable and high-strength cast iron, details operating at high loads.
APPLICATION CONDITIONS
The welding area must be cleaned. Welding is carried out without preheating, or with a slight heating. The beads should be welded only in the lateral direction without transverse oscillations of the electrode, no more than 50 mm of weld in one pass. In multi-layer surfacing, cool every layer in the air to a temperature of 60 ° C. after welding, immediately hammer the bead
REDRYING BEFORE WELDING
At the normal storage conditions, the redrying is not required. The moisture content of the electrode coating should not exceed 0.3% before use. In case of moisture redrying is made at 180-220°C 60 min
CHEMICAL COMPOSITION OF WELD METAL, %
| C | Mn | Si | S | Ni | Fe | P |
| 0.8-1.5 | 1.0-2.5 | ≤ 1.0 | ≤ 0.03 | ≥52.0 | ≤ 45.0 | ≤ 0.03 |
MECHANICAL PROPERTIES OF WELD METAL
| Tensile strength, MPa | Elongation, % | Hardness, НВ |
| ≥ 450 | ≥ 10 | ≥180 |
WELDING CONDITIONS
4125-145
| Diameter, mm | Welding current, A |
| 2.5 | 50-80 |
| 3.0 | 70-100 |
| 3.2 | 80-110 |
Welding should be made at DC of reverse polarity («+» on electrode ) or AC.
PACKAGING DATA
| Diameter, mm | Length, mm | Number of electrodes in package, pc. | Weight of packing, kg |
| 2.5 | 350 | 62-63 | 1 |
| 3.0 | 350 | 35-36 | 1 |
| 3.2 | 350 | 31-33 | 1 |
Weight of packing, kg
PA; PB; PC; PF
ISO 6947
CERTIFICATION
