Surfacing
PP-Np-12H ( Np-12Cr )
Flux-cored wire is designed for open-arc, submerged-arc or gas-shielded hardfacing of parts exposed to an abrasive environment with extra risk of corrosion, at normal and increased temperatures (up to 450°C).
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Additional Information
| Diameter, mm | 1.2 - 4.0 |
| Curent type / Shielding | DC+ / Open arc, flux, Ar, СО2, Ar + CO2 |
| Working conditions | Abrasive, corrosion at temperatures up to 450 °C |
| Applications |
Hardfacing of continuous-casting machine rollers, sealing surfaces of gas, oil, and general purpose industrial fittings operating at temperatures up to 450 °C |
| Recommended flux | EFA-1, АN-26S/P, АN-20S/P |
| Slag separation | good |
| Deposit factor, g/A·h | 10 - 18 |
| Crack susceptibility | moderate |
| Wire consumption, kg | 1.05 - 1.2 |
| Hardness of weld metall | HRC 28 - 47 |
OPERATING CONDITIONS (submerged arc)
|
Wire diameter, mm |
Current, A |
Voltage, V |
Deposition rate, m/h |
|
1.6 |
150 – 230 |
27 – 29 |
8 – 15 |
|
2.0 |
180 – 280 |
29 – 31 |
10 – 18 |
|
2.4 |
220 – 320 |
30 – 32 |
13 – 20 |
|
2.8 |
260 – 380 |
31 – 33 |
14 – 22 |
|
3.2 |
300 – 430 |
32 – 34 |
15 – 25 |
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