| Customization: | Available |
|---|---|
| Sample: | ss 420 is available |
| Surface: | bright surface of ss 420 |
|
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| C % | Si % | Mn % | Cr % | Al % | Fe % | |
|---|---|---|---|---|---|---|
| Nominal composition | Bal. | |||||
| Min | - | - | - | 20.5 | 5.3 | |
| Max | 0.08 | 0.7 | 0.4 | 23.5 | 6.3 |
Depending of surface finish requirements, the coating may be machined by turning or grinding. For rougher surface, turning using carbide tools, light cuts and efficient cooling to avoid overheating is recommended. Grinding in fine steps using cooling, light pressure and clean wheels gives smoother finish.
| Wire size | Yield strength | Tensile strength | Elongation |
|---|---|---|---|
| Ø | Rp0.2 | Rm | A |
| mm | MPa | MPa | % |
| 1.6 | 830 | 930 | 5 |
| Density g/cm3 | 7.10 | |
|---|---|---|
| Electrical resistivity at 20°C Ω mm2/m | 1.45 | |
| Melting point | 1500 °C | |
| Magnetic Properties | The material is magnetic up to approximately 600 °C (the Curie point). | |
| Dimension tolerance mm | + 0/-0.05 | |
| Temperature °C | 20 |
|---|---|
| GPa | 220 |
Summary of results obtained when spraying with a conventional Arc Spray gun, using varying spraying parameters.
| Deposition efficiency (%) | 62-78 |
|---|---|
| Hardness HV (300g) | 165-280 |
| Surface roughness (µm) | 11-16 |
| Porosity (%) | 1-6* |
| Oxides (%) | 5-20* |
*) These results are obtained when using air as spraying gas. Also nitrogen has been used, resulting in lower rates of porosity and oxides.
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