Materials E-Guide
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Metco 18C is a cobalt-based, self-fluxing alloy powder with an approximate fused hardness of HRC 48 to 52. It is recommended for use on substrates that may have cracking issues such as alloyed steels and 400 series steels. Approximate fusing temperature: 1121 °C. Laser cladding application is recommended, but may also be applied using PTA or puddle welding. It produces relatively hard deposits that can be finish ground using a diamond or silicon-carbide wheel.
Characteristics
| Material type | Thermal Spray Powder |
|---|---|
| Product form | Powder |
| Material safety datasheet number | 50-103 |
| Achieved surface function primary |
Abrasion Protection Adhesive Wear Protection Erosion Protection in Gas Flow Erosion Protection in Liquid Flow Sliding Wear Protection Solid Particle Erosion Protection Dimensional Restoration |
| Suitable for service environmen |
Acidic Liquid, Not Specified Crude Oil Dust Engine Oil Gravel/Stone/Rock/Concrete Contact Metal Contact Soil//Sand/Silt/Clay Contact Seawater/Brackish Water Plastic/Rubber/Polymer Contact Corrosive Mud Corrosive Liquid |
| Melting temp. | 1121 |
| Base composition | Cobalt-Nickel |
| Nominal chemistry | Co 27Ni 18Cr 6Mo 3.5Si 3B 2.5Fe 0.2C |
| Max. service temp. | 540 |
| Achieved microhardness (min) | 48HRC |
| Achieved macrohardness (max) | 52HRC |
| Recomm metco spray gun |
3MB 5P-II 6P-II 9MB F4MB SinplexPro TriplexPro-210 |
| Recommended process technology |
Laser Cladding Oxy-Acetylene Welding Plasma Transferred Arc Spray and Fuse Powder Welding |
| Recommended finishing | Grinding, diamond (preferred) or green silicon carbide |
| Datasheet number | DSM-0412 |