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Welding electrodes HS-Fe9
Terms of use
- it is recommended to hold the electrode close to a right angle
- welding should be carried out with a short arc and as little current as possible to prevent strong mixing with the base metal
- to achieve maximum wear resistance on low-carbon steels, it is necessary to carry out surfacing in at least 3 layers
- the interpass temperature should not exceed 100-150°C
- surfacing is performed at low ambient temperatures, it is desirable to preheat the product to
30 - 40°C, mechanical workability of the deposited metal - only with an abrasive.
Special properties
- the deposited metal has increased resistance to the formation of hot cracks due to ferrite stabilization of austenite and high homogeneity of the deposited metal
- deposition coefficient: 0.15 - 0.16 g/A·min
- consumption of electrodes per 1 kg of deposited metal: 1.6 - 1.7 kg
Electrodes are designed for welding and surfacing of austenitic steels of the 110G13 type (Hadfield steel), restorative surfacing of products made of similar grades of steel that work under conditions of intense shock and compressive loads, moderate abrasive wear and have the ability to strengthen during operation.
The main areas of application are parts of mining, processing and railway topics: crushing tongs, hammers, armor plates and rollers, cones and housings of rotary and jaw crushers, teeth of excavators, crawler tracks, as well as railway crossings. The deposited metal acquires the necessary hardness after the operation of cold mechanical strengthening (scalding) or during operation, when the surface is subjected to intense shock loads.
Packaging data
| Diameter, mm | Length, mm | Number of electrodes in the package, pcs. | Weight of the pack, kg |
|---|---|---|---|
| 4,0 | 450 | 13 – 15 | 1,0 |
| 5,0 | 450 | 10 – 12 | 1,0 |
Coating type
basic
CHEMICAL COMPOSITION OF DEPOSITED METAL, %
According to AWS A5.1 / Typical Results
C
Carbon
0.06
Mn
Manganese
13.5
Si
Silicon
1
Cr
Chromium
4
Ni
Nickel
2.5
Baking before welding
- permissible moisture content in the coating before use is not more than 0.3%
- in case of electrode coating wetting above the norm - dry for 60 minutes at 250±10 °С
Welding modes
| Welding current strength, A for electrodes with a diameter of, mm | |
|---|---|
| 4.0 | 5.0 |
| 130 – 170 | 150 – 190 |
Deposition should be carried out with direct current of reversed polarity, + on the electrode, with an arc voltage of 24-27 V.
Position of seams during welding
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