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INTERNATIONAL CLASSIFICATIONS |
DIN 8555: E21-UM-65-G
EN 14700 EFe20
FEATURES & APPLICATIONS |
Ideally suited for overlaying mining and earth moving equipment.Excellent for wire saws and other edges requiring cutting action combined with abrasion resistance.
- Tungsten carbide overlay within a high carbon steel matrix.
- Specially selected carbides for maximum cutting action.
- Extremely high percent of tungsten carbide.
- Primary carbides provide maximum cutting action, while secondary carbides dissolves to strengthen matrix.
All Weld Metal Analysis (Typical Weight %) |
Flux Color: Charcoal Grey
WC | Mn | Fe |
60 | 1.0 | bal |
Typical Mechanical Properties |
Undiluted Weld Metal Maximum Value Up to:
Carbide Hardness VPN 1200
Matrix Hardness RC 65-69
Coverage Approx. 30 sq inches (1/16 thick)
Deposition Efficiency Greater than 90%
Welding Current & Instructions |
Recommended Current: DC either polarity or AC
Diameter (mm) |
1/8 (3.25) |
5/32 (4.0) |
3/16 (5.0) |
Minimum Amperage |
70 |
100 |
150 |
Maximum Amperage |
120 |
170 |
210 |
Welding Techniques: Clean surface and remove old overlays and loosely adhering metal. Establish the arc holding the electrode near perpendicular and move quickly in the direction of travel. Use the stringer bead technique only – do not weave. Pull electrode out of final crater – do not back-whip. Normally a second pass will not be required. Deposits made this way will provide trapped projecting carbides for maximum cutting action.