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nikelchimico STA

Features

  • deposit medium high content of phosphorus (P) 7-12%
  •  deposit thickness between a few microns and 50-70 microns
  • uniformity of thickness of the deposit of the whole piece including within + / - 2% of the thickness deposited (+ / -1 micron to 50 micron deposit)
  • very good chemical resistance in an alkaline ammoniacal and not in the organic acids, in acetic acid medium and in inorganic acids, low in hydrochloric
    see corrosion table
  • Obviously, the chemical resistance is inversely proportional to the porosity of the deposit which, in turn, is inversely proportional to the thickness of the carry.
  • As can be seen from the graph on the right in the high porosity decreases rapidly with increasing thickness, already in about 15-20 microns is to acceptable levels
  • Surface hardness of approximately 1000 HV after heat treatment at 290 C for 10 hours or at 400 C for one hour; as can be seen from the graph below the higher strength is obtained with a phosphorus content of 11%
  • Melting point around 900 C
  • Easily solderable with tin alloys for electronics
 

Porosità al variare dello spessore del deposito

Applications

  • automotive industry 25-35%
  • electric electronic 20%
  • Oil industry 10-2%
  • Mechanical 02.10%
  • chemical and food 10%
  • textile printing and 10-15%

 

Durezza in Vcikers di alcuni depositi