RX®ww 6643-O
RX®ww 6996-O DESCRIPTION
| Specification | EN14700 |
| clas.code | T Fe10 |
|
Typical All-Weld metal analysis |
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|
C |
Si | Mn | Cr | Nb |
Fe |
| 5.2 | 1.0 | 0.5 | 22 | 7 |
Bal |
|
Typical All-weld metal mechanical properties |
|
|
Hardness |
(3-layer deposit) |
| As welded |
62-64HRC |
|
General characteristics |
|
|
Microstructure |
chromium and niobium carbides in an austenitic matrix. Niobium carbides increase abrasion and impact resistance compared to classical high chromium cast irons. |
|
Machinability |
grinding only |
| Oxyacetylene cutting |
cannot be flame out |
| Shielding gas |
- |
|
Operating conditions |
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Diameter(mm) |
Current(A) | Voltage(V) | Stick-out(mm) | |||
|
range |
optimum | range | optimum | range | optimum | |
| 1.6 | 150-350 | 270 | 24-35 | 28 | 25-50 |
25 |
| 2.8 | 250-450 | 400 | 28-32 | 30 | 25-50 |
40 |
| 3.2 | 250-500 | 450 | 28.32 | 30 | 25-50 |
40 |
| Welding positions | Flat |
|
Packaging |
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Diameter（mm） |
1.6 | 2.8 | 3.2 |
|
Standard packaging |
Coil/Drum |
Coil/Drum |
Coil/Drum |
| Weight | 15kg /250kg | 50kg /250kg |
50kg /250kg |
Other packaging and other diameters: please consult us
Welding products and techniques evolve constantly. All descriptions, illustrations and properties given in this data sheet are subject to change without notice and can only be considered as suitable for general guidance. This document is intended to help the user make the correct choice of product. It is his responsibility to assess its suitability for his intended application.
6643-O is designed to give a weld deposit of high hardness and wear resistance. It is used for hardfacing components undergoing heavy wear by earth, sand or other abrasives. Relief checking is normal.
Examples :Sand and earthmoving equipment such as buckets and teeth, railway ballast tampers, dredge buckets and lips, dragline
buckets, coke hammers, rippers, sizing screens, crushing equipment, brick industry components, Muller tyres, catalyst lift
pipes, pump impellers, fan blades, rockwool rolls, wear plates operating at high temperature in the steelmaking industry,
etc.ls