ELECTROLESS NICKEL SPECIFICATIONS

Description: TWR's High Phosphorus Electroless Nickel is designed by the manufacturer to provide a high quality nickel deposit from a highly stable plating solution at an economical cost. The bath plates at approximately 0.3-0.5 mil per hour, deposting nickel phosphorus coating that provides the optimum in corrosion protection and engineering properties, The deposit's corrosion resistance functions as a barrier coating. It is resistant to attack by any but the most severely oxidizing environments. The depost is completely amorphous (no crystal or phase structure). If the deposit is heat treated, particles of Ni3P will precipitate and the coating crystallizes, resulting in a significant increase in the hardness and wear resistance. Properties: Nickel Content: 87%-89% Phosphorus Content: 11%-13% Internal Stress: neutral to compressive Tensile Strength: > 700 Mpa Elongation: 2% permanent strain Modulus of Elasticity: 200 Gpa (2.8 X 108 psi) Density: 7.75 g/cm3 Melting Point: 800 °C (1620 °F) Adhesion Strength 140-400 Mpa (20-60 kpsi), depending on substrate Hardness: As Plated: 490-515 VHN100 (49-50 Rockwell C)               Heat Treated: 1000-1100 VHN100 (65-70 Rockwell C) Electrical Resistance: 90-100 uohms/cm2 Thermal Conductivity: 0.02 cal/cm/sec/°C Coefficient of Thermal Expansion: 8-10 um/m/°C Magnetic Properties: Nonmagnetic Coefficient of Friction vs. Steel: 0.40 non-lubr. To 0.13 lubr. Taber Wear resistance: As Plated: 22-24 mg/1000 cycles                                 Heat Treated (400 °C/1 hr.): 10-12 mg/1000 cycles

All statements, technical information and recommendations contained herein are based on information and tests we believe to be reliable. The accuracy or completeness thereof is not guaranteed. Since conditions of use are outside our control, user shall, before using, determine the suitability of the product for his intended use and user assumes all risk and liability whatsoever in connection therewith.

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