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Surfacing

PP-Np-30H20

Flux-cored wire for submerged-arc, open arc or gas-shielded hardfacing of parts exposed to cyclic loads, corrosion, cavitation erosion, and metal-to-metal friction.

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Additional Information
Diameter, mm 1.6 - 4.0
Curent type / Shielding DC+ / Open arc, flux, Ar, CO2, Ar + CO2
Working conditions Cyclic loads, corrosion, cavitation erosion, and metal-to-metal friction
Applications

Hardfacing of marine shaft collars, stocks, rudder spindles, steel crankshafts, parts of drilling and pumping equipment, hydraulic rams, etc.
Recommended flux  EFA-1, АN-26S/P, АN-20S/P
Slag separation good
Deposit factor, g/A·h 12 - 16
Crack susceptibility low
Wire consumption, kg 1.05 - 1.15
Hardness of weld metall HRC 22 - 30

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 – 250

29 – 31

10 – 18

2.4

220 – 300

30 – 32

13 – 20

2.8

280 – 360

31 – 33

14 – 20

3.2

300 – 400

32 – 34

15 – 25
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