Introduction
HFK 270B-G welding wire is a highly boron-alloyed cored wire for hard surfacing against extreme mineral wear. It features less sputter during welding, a stable arc, and a good appearance after welding.
This welding wire is suitable for unalloyed steels in normal temperatures and the deposited weld metal has excellent resistance to erosion due to its special microstructure.
Typical applications
For parts subjected to wear in machinery for the mine industry and agriculture, screw conveyors, and hoppers.
Mechanical properties
| Layers | Hardness (HRC) |
|---|---|
| Second Layer | 65–70 |
Recommended welding parameters
DC reverse connection
| Diameter: in (mm) | Current (A) | Voltage (V) |
|---|---|---|
| 0.045 (1.2) | 160–220 | 22–25 |
| 1⁄16 (1.6) | 200–280 | 22–28 |
| Shielding gas | Gas flow: cfh (l/min) | Torch angle | Stick out: in (mm) |
|---|---|---|---|
| 100% CO2 | 40 (20) | 80° | 1⁄2–3⁄4 (15–20) |
Diameters and packaging
| Diameter: in (mm) | Packaging: lb (kg) |
|---|---|
| 0.045 (1.2) | 33 (15) |
| 1⁄16 (1.6) | 33 (15) |
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| Click here to download the datasheet for Kooben HFK 270B-G. |
