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Micro Plating Inc.

electroless nickel & composite nickel - nickel/boron nitride

8110 Hawthorne Drive • Erie Pa 16509 • Ph. (814) 866-0073 • Fax (814) 866-0804 • Email: info@microplating.com
High Phosphorus-Electroless Nickel
Mil-C-26074, AMS-2404, RoHS compliant • All Coatings are FDA Approved and RoHS Compliant
HARDNESS

Micro Plating Electroless Nickel is an alloy of 10-12% Phosphorus in nickel and is specified wherever a uniform, hard and highly corrosion resistant coating is required. Its high hardness and lack of porosity make it an ideal barrier coating for components exposed to aggressive usage or hostile environments. The as-plated hardness of electroless nickel is approximately 48-52 Rc and can be heat treated to 68-70 Rc for a more wear resistant finish.

UNIFORMITY

Because the coating is deposited "chemically" rather than with electricity, the problems normally associated with electroplating (edge build-up, uneven thickness, no plating in corners and recesses etc.) are typically avoided. Electroless nickel deposits guarantee 100% coverage and are so uniform that the surface finish is normally duplicated and after plate machining or polishing is often eliminated. Threads and other complex shapes also maintain their original geometry after plating.

CORROSION RESISTANCE

Micro Plating "high phosphorus electroless nickel" coatings meet or exceed Mil-C-26074 and Aerospace Material Specification 2404 and are recommended where maximum corrosion protection is required. Because of its amorphous structure and lack of porosity at thicknesses above .0004" thick,salt spray tests per ASTM B117 repeatedly show that high phosphorus electroless nickel coatings out perform other electroless nickel deposits with 9% or less phosphorus by over 4 to 1. In some applications the use of Micro Plating High Phosphorus Electroless Nickel allows the substitution of less expensive materials as a low cost alternative to hard to machine or stainless steel alloys.

FEATURES
  • Superior corrosion protection
  • Low to zero porosity
  • Non-magnetic coating
  • Less prone to staining
  • Pit-free deposits
  • Compressive stress
  • Heat treated deposits compare in hardness to hard chrome.
  • Uniform deposit regardless of part geometry
  • Provides extremely low coefficient of friction
  • Semi-bright appearance similar to stainless steel.

HIGH PHOSPHORUS ELECTROLESS NICKEL TECHNICAL DATA
Phosphorus Content:
Weight %
10.5 to 12
Melting Point:
Eutectic
1620º F.
Magnetic Properties:

Non-Magnetic
Hardness:
Knoop hardness (kg/mm2)
50 g. load, 3.0 mil deposit, steel
As plated
450
Heat treated @ 750º F. for 1 Hour
800 to 830
Wear Properties:
Taber Abraser Wear Test
Index Value
Weight loss mg/1000 cycles
As Plated
15 to 18
Heat treated @ 750º F. for 1 Hour
4 to 8
Corrosion Related Properties:
Salt spray test (ASTM B117) 95º F.
5% NaCl, 1.0 mil deposit
Hours to first corrosion spot
Aluminum
1000 +
Carbon Steel
1000 +
Nitric Acid Test:


Concentrated Nitric Acid 42 Baume,
30 seconds @ room temperature
1.0 mil on steel
Pass
Hydrochloric Acid Test:

50% HCL, 3 minutes @ room temperature
1.0 mil on steel
Pass
Thickness Control:
Accuracy
+ / - 10%
Thickness:

Range
.00001" to .005"
Typical
.0002" - .0003"