Surfacing

PP-Np-45V9H3SF (Np-45W9Cr3SiV)

Flux-cored wire for submerged-arc hardfacing of parts exposed to thermal fatigue and substantial relative pressure.

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Additional Information
Diameter, mm 1.6 - 4.0
Curent type / Shielding DC+ / Flux
Working conditions Thermal fatigue and high relative pressure
Applications

Hardfacing of hot pipe and section rolling steel rolls, metal hot-cutting blades, hammer heads, coiler pulling rollers, brake pulleys, etc.

Recommended flux  EFA-1, АN-26S/P, АN-20S/P
Slag separation good
Deposit factor, g/A·h 10 - 16
Crack susceptibility increased
Wire consumption, kg 1.05
Hardness of weld metall HRC 41 - 54

OPERATING CONDITIONS 

Wire diameter, mm

Current, A

Voltage, V

Deposition rate, m/h

1.6

140 – 200

25 – 28

10 – 14

2.0

160 – 240

25 – 29

12 – 17

2.4

200 – 290

26 – 30

15 – 19

2.8

260 – 330

29 – 31

18 – 22

3.2

280 – 380

29 – 33

19 – 23

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