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Surfacing

PP-Np-18 (PP-Np-18CrMnSi)

Designed for automatic and semi-automatic submerged-arc or gas-shielded hardfacing of carbon steel parts exposed to metal-to-metal friction.

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Additional Information
Diameter, mm 1.2 - 4.0
Curent type / Shielding DC+ / Flux, Ar, СО2, Ar + CO2
Working conditions Metal-to-metal friction
Applications

Hardfacing of tracked vehicle idlers, road wheels, crane wheels, roller table rollers, roller spindles, shaft seats, resizing of carbon steel parts.
Recommended flux  EFA-1, АN-348А, АN-60
Slag separation good
Deposit factor, g/A·h 10 - 15
Crack susceptibility moderate
Wire consumption, kg 1.05 - 1.15
Hardness of weld metall HRC 15 - 32

OPERATING CONDITIONS (submerged arc)

Wire diameter, mm

Current, A

Voltage, V

Deposition rate, m/h

1.6

150 – 230

27 – 30

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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