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Electroless Nickel Plating

Similar to stainless steel in color. Plates uniformly in recesses and cavities (does not build up on edges). Corrosion resistance is good for coatings over .001” thickness. Electroless nickel is used
extensively in salvage of mismachined parts. Also, for inside dimensions and irregular shapes (where assembly tolerances need uniformity provided by electroless process). This spec does not specify the phosphorous content in the EN deposit provided it passes 100 hours salt spray test at 1.0 mil for AL and 1.5 mil for steel. Please note: This specification has been re-instated. Rein. Not. 3.

Spec. Thickness Comment
AMS-C-26074
Unless otherwise specified:
-
Class 1
-
As coated
Class 2
-
Steel and other base metals heat
treatable to improve hardness.
Class 3
-
Aluminum and other base metals
not heat treatable
Class 4
-
Aluminum alloy, heat treatable,
processed to improve adhesion of
the nickel deposit
Grade A
0.0010" min
 Unless otherwise specified:
Aluminum alloys will be grade A.
Cu, Ni, Co alloys will be grade B.
Ferrous alloys will be grade C.
Grade B
0.0005" min
Grade C
0.0015" min
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9418 Gunston Cove Road - Lorton, VA 22079-2314
Phone: 703-643-1636 • Fax 703-690-6731
e-mail: alex.metal@verizon.net

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