ELECTROLYTIC NICKEL PLATING SERVICES

Functional and engineered electrolytic nickel plating service

Electrolytic plating is a process that uses electricity and an electrolyte solution to deposit metal ions on a substrate to either enhance the performance of the substrate or add functionality and value for critical applications.

Electrolytic nickel is especially known for its protective oxide surface that forms during the process. The degree to which the corrosion existence performs is dependent on the thickness of the application.

Mid-Atlantic Finishing Corp offers functional and engineered electrolytic nickel plating services to the aerospace, telecommunications, defense and medical sectors that is compliant to QQ-N-290, ASTM B689, AMS-2403 & AMS 2423 specifications.

ELECTROLYTIC NICKEL PLATING TO THE FOLLOWING STANDARDS

MAF is the Nation’s premeire metal finishing service provider

QQ-N-290

CLASS 1: Corrosion Protective Plating
CLASS 2: Engineering Plating

Table 1 Lists the Following Minimum Thicknesses:

Grade A	0.0016 min thickness plating
Grade B	0.0012 min thickness plating
Grade C	0.0010 min thickness plating
Grade D	0.0008 min thickness plating
Grade E	0.0006 min thickness plating
Grade F	0.0004 min thickness plating
Grade G	0.0002 min thickness plating

QQ-N-290 Class 1 Categories:

SB – Single Layer Bright Nickel Deposits
SD – Single Layer Dull or Semi-Bright (Satin) Deposits
M – Multilayer Nickel Deposits

Underplating: When specified in the contract, purchase order or applicable drawing, Class 1 plating shall be applied over a plating of copper on steels, copper and copper based alloys.

Class 1 plating shall be applied over an underplating of copper or yellow brass on zinc and zinc based alloys.

In no case shall the copper underplate be substituted for any part of the specified nickel thickness.

Thickness of Plating

Class 1 – Unless otherwise specified, the minimum thickness of Class 1 nickel plating shall be as specified on any visible surfaces, which can be touched by a ball 0.75 inch in diameter.

Unless otherwise specified, the minimum nickel plating for ferrous materials or for zinc based alloys shall be Grade C.

Unless otherwise specified, the minimum nickel plating for copper and copper alloys shall be Grade D.

If the maximum thickness for Grade A is not specified in the contract, order or applicable drawing, the thickness shall not exceed 0.002 inch on all visible surfaces which can be touched by the 0.75 inch diameter ball.

ASTM B689

Type I: Nickel deposits plated from solutions free of brighteners, hardeners or stress control ddditives
Type 2: Nickel deposits plated from solutions containing ssulfur or other co-deposited additives
Type 3: Nickel deposits containing dispersed submicron particles such as silicon carbide, tungsten carbide or aluminum oxide to increase hardness or wear resistance

CLASSES:
Class indicates minimum deposit thickness in microns (µm). e.g. Class 5 is a deposit of 5µm minimum thickness.

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Proactive Personalized Service

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Prompt Quotes. Fast Turnaround Times

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Suberb Qualilty, Value-Added Results

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Competitive Pricing

PERFORMANCE BENEFITS

Excellent corrosion resistance

Extremely high melting point

Excellent for high-temp applications

Slow to react in standard atmospheric environments

Low coefficient of thermal expansion

Magnetic

ITEMS OF NOTE

All steel parts having a hardness of RC-40 or greater require a post bake at 375 degrees + 25 degrees F for 3 hours.

MAF has the ability to underplate other underplates such as copper plating if required. You may specify an under plate to enhance adhesion and corrosion resistance of the nickel final deposit.