Surfacing

PP-Np-25

Flux-cored wire for open-arc or gas-shielded machine hardfacing of carbon steel parts exposed to metal-to-metal friction.

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Additional Information

Diameter, mm	1.2 - 3.0
Curent type / Shielding	DC+ / Open arc, Ar, CO₂,Ar + CO₂
Working conditions	Metal-to-metal friction
Applications	Hardfacing of tracked vehicle undercarriage parts, sintering machine segments, axles, roller table rollers, shaft seats, rail car couplers, etc.

Weld formation	good
Slag separation	good
Deposit factor, g/A·h	10 - 16
Crack susceptibility	moderate
Wire consumption per, kg	1.1 - 1.2
Hardness (3-layer deposit on mild steel)	HRC 42 - 50

OPERATING CONDITIONS (Open arc)

Wire diameter, mm	Current, A	Voltage, V	Deposition rate, m/h	Wire stick-out, mm
1.6	150 – 230	23 – 27	10 – 15	30 – 40
2.0	180 – 280	24 – 28	15 – 20	30 – 40
2.4	220 – 320	25 – 28	20 – 25	30 – 40
2.8	260 – 380	25 – 29	20 – 25	30 – 40
3.0	280 – 400	26 – 31	20 – 25	30 – 40

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