Materials E-Guide
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Metco 8224 is a chromium-free composite wire comprised of a martensitic matrix with hard, fine-scaled molybdenum boride and vanadium carbide. Apply Metco 8224 using GMAW or BMAW welding processes. Deposits result in rough, impact- and abrasion-resistant surfaces, with hardness generally ranging from 64 to 68 HRC. Deposits can have impact performance that is up to 20 times that of WC-Ni and more than 4 times better than chromium carbide overlays or nanostructured forming steels.
Characteristics
| Material type | Wire Material |
|---|---|
| Product form | Wire |
| Material safety datasheet number | 50-2204 |
| Previous name | Vecalloy 600 |
| Achieved surface function primary |
Abrasion Protection Erosion Protection in Liquid Flow Solid Particle Erosion Protection Erosion Protection in Gas Flow Impact Resistance |
| Suitable for service environmen |
Moderate Atmosphere Gravel/Stone/Rock/Concrete Contact Soil//Sand/Silt/Clay Contact |
| Base composition | Iron |
| Nominal chemistry | Proprietary |
| Achieved microhardness (min) | 65HRC |
| Achieved macrohardness (max) | 68HRC |
| Hard phase portion | 33% |
| Recommended process technology |
Gas Metal Arc Welding Gas Tungsten Arc Welding Open Arc Welding Submerged Arc Bulk Powder Welding |
| Datasheet number | DSM-0206 |