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Flux-Cored Wires NIFD Series
Features:
TFY-NIFD is a flux core wire filled with fused tungsten carbide and NiCrBSi- matrix for semi-automatic welding application. It was developed to protect surfaces against extreme abrasive wear in combination with corrosion attacks. The deposit alloy consists of approximately 60% FTC and 35-40% Ni-Cr-B-Si-matrix. The alloy has a low melting range of between 900-1050°C (1652-1922°F) and feature a self fluxing characteristics producing a smooth and clean surface. The matrix is highly resistant to acids, bases, lye and other corrosive media.
Application:
Repairing and hard facing ferritic and austenitic steel tools and machine parts (steel casting). Specially developed for semi and fully automatic welding on tool joints and stabilizers in the petroleum industry.
Chemical composition (in wt-%):
| C | Si | Mn | Cr | Ni | Mo | V | Fe |
| 0.4 | 0.5 | 16 | 14 | 1.2 | 0.6 | 0.2 | Balance |
Physical Characteristics:
| Hardness:Â Â Â Â Â Â Â Â Â Â Â Â Â Â | FTC: approx. 2360HV0.1 |
Operating Data:
|
Ømm |
Øinch |
Coil size DIN |
Amps |
Voltage |
|
1.2 |
 |
B 300 |
120-160A |
16-20V |
|
1.6 |
1/16 |
B 300 |
160-180A |
18-20V |
|
2.4 |
3/32 |
B 435 |
200-230A |
21-23V |
|
2.8 |
7/64 |
B 435 |
220-260A |
21-23V Â
|
|
3.2 |
1/8 |
B 435 |
240-280A |
23-25V |
The area to be hard faced should be free of rust, scale, oil and other contamination. Be sure that the base material is not overheated and choose amps and volts as low as possible to avoid decomposition of the tungsten carbide.
NOTE: The base metal’s alloy should have enough tensile strength so that the hard facing material cannot be pressed into it.Â
Please observe all appropriate safety regulations in force. The technical informations given in this data sheet reflects the present state of knowledge. They do not form part of any sales contract as guaranteed properties of the delivered materials.
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