ELECTROLESS NICKEL
This is an auto-catalytic plating process during which nickel is evenly deposited over the surface of the base metal. Electroless Nickel Plating is an established method to improve the corrosion and abrasion resistance of metal parts.
This process can be performed on most base metals.
| PROPERTY | HIGH PHOS | MID PHOS |
|---|---|---|
| % Phosphorus | 9 – 12 % phosphorus | 5 – 8 % phosphorus |
| Thickness | Between 0.0002” – 0.005” thicker deposits are possible under certain conditions | Between 0.0002” – 0.005” thicker deposits are possible under certain conditions |
| Tolerance | ± 0.0001” | ± 0.0001” |
| Uniformity | 0.00005” | 0.00005” |
| Coefficient of Friction | 0.2 (ASTM D-2714) | 0.2 (ASTM D-2714) |
| Corrosion resistance | > 1000 hours (ASTM B117 salt spray for 0.001” deposit) | > 200 hours (ASTM B117 salt spray for 0.001” deposit) |
| Wear Resistance | 9 mg/1000 cycles Taber test on hardened sample | 8 mg/1000 cycles Taber test on hardened sample |
| Density | 7.9 + - 0.2 g/cm3 | 8.1 + - 0.2 g/cm3 |
| Melting point | 890 °C | 900 °C |
| Thermal conductivity | 0.0105 – 0.0135 cal./cm/s/degree | 0.0105 – 0.0135 cal./cm/s/degree |
| Modulus of elasticity | 50 – 70 GPa | 50 – 65 GPa |
| Tensile strength | about 750 N/mm2 | about 900 N/mm2 |
| As plated hardness | – 50 – 52 HRc, max. 68 HRc | – 54 – 56 HRc, |
