Electroless Nickel

Electroless nickel (EN) plating is a chemical reduction process which depends upon the catalytic reduction process of nickel ions in an aqueous solution (containing a chemical reducing agent) and the subsequent deposition of nickel metal without the use of electrical energy. Due to its exceptional corrosion resistance and high hardness, the process finds wide application on items such as valves, pump parts etc., to enhance the life of components exposed to severe conditions of service ,particularly in the oil field and marine sector. Electroless deposits are very uniform in thickness all over the parts shape and size. This process offers distinct advantages when plating irregularly shaped objects, holes, recesses, internal surfaces, valves or threaded parts.

Specifications

MIL-G-45204 & MIL-DTL-45204
	Class 1	As plated with no subsequent heat treatment
	Class 2	Heat treated to obtain required hardness
	Class 3	Nonheat treatable aluminum alloys and beryllium alloys
	Class 4	Heat treatable aluminum alloys
	Grade A	0.0010" min. (1000 u")
	Grade B	0.0005" min. (500 u")
	Grade C	0.0015" min. (1500 u")
ASTM B 488
	General	1-7.5 um (40-300 u") for soldering
	General	5-15 um (200-600 u") for rust prevention
	General	5-25 um (200-1000 u") for mild wear conditions
	General	13-30 um (516-1190 u") for moderate wear conditions
	General	30-75 um (1190-3000 u") for severe wear
	General	50-125 um (2000-5000 u") for severe corrosion as required for salvage

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Materials

Copper Alloy (Non Ferrous)
	BeCu
	Brass
	Phosphorous
	TeCu
	Copper
Nickel Alloy (Ferrous)
	Carbon Steel
	Leaded Steel
	Stainless Steel
	Kovar
	Invar
	Nickel
	Spring Steel
	Molybdenum
	Elkonite