Process Specifications

Below is a short list of process specifications performed at ElectroLab.  There are many customer specific specifications that are not included in this list.  Please inquire here regarding other specifications.  An asterisk indicates processes within the scope of our Nadcap accreditation.

Anodizing - *

MIL-A-8625, TYPE II, CLASS 1 & 2
AMS 2471
AMS 2472

Anodizing converts the surface of aluminum to a durable porous structure and provides good corrosion resistance.   The porous structure readily absorbs dyes, allowing for a multitude of colors for the finished product. Primary colors available are black, red and blue.  ElectroLab offers a wide variety of other colors.  Inquire here for more information.

Black Oxide

MIL-DTL-13924, CLASS 1 & 4
AMS 2485
MIL-F-495

Black Oxide coatings can be applied to steel, stainless steel and copper.

Zinc Plating

ASTM B633
QQ-Z-325
ASTM F1941
AMS 2402

Zinc plating is an inexpensive corrosion resistant coating.  Chromates are applied to extend that resistance even further.  These can be clear (silver), yellow, olive drab or black.  Hexavalent chromates are not RoHS compliant.  ElectroLab offers a clear RoHS compliant conversion coating for those applications which require such compliance.

Bright Nickel Plating - *

QQ-N-290
AMS-QQ-N-290
AMS 2403

Nickel plating is commonly used for a decorative finish due to it’s bright and shiny appearance.  It also adds corrosion and wear resistance.

Bright Tin Plating

ASTM B545
MIL-T-10727

Tin electroplating is typically used for electrical connectors and buss bars to add corrosion resistance, while maintaining good electrical conductivity.

Electroless Nickel (Mid-Phos) - *

MIL-DTL-26074
AMS-C-26074
ASTM B733
AMS 2404

Electroless nickel is a functional coating to provide good corrosion resistance.  Because electroless nickel is deposited using chemical rather than electrical means, complex shapes can be plated evenly.  This coating can also be baked to increase the hardness to nearly that of hard chrome.

Cadmium Plating - *

QQ-P-416
AMS-QQ-P-416
AMS 2402

Cadmium plating is still used extensively in military and aerospace applications for its excellent corrosion resistance.  A limitation of cadmium plating is hydrogen embrittlement of high-strength steels from the electroplating process.  A post-plating bake is required to remove this hydrogen, and bring the material back to its original condition.

Aluminum Conversion Coating - *

MIL-DTL-5541
AMS 2473
AMS 2474
ASTM B449

Aluminum conversion coatings are used to add corrosion resistance.  It is also useful as a base for paint, improving both corrosion resistance and adhesion.

Electropolishing

ASTM A967
ASTM B912

Electropolishing is an electrochemical method for polishing stainless steel and aluminum to a very bright finish.  Highly decorative!

Passivation - *

AMS 2700, METHOD 1
QQ-P-35
AMS-QQ-P-35
ASTM A967
ASTM A380
MIL-DTL-5002

Passivation is a method to remove free iron from a stainless steel surface (usually residual from machining tools) and create a thin chromic oxide layer on the surface of the material.

Zinc Phosphate

MIL-DTL-16232, TYPE Z

Zinc phosphate is used for corrosion resistance on steel parts.  It also provides an excellent base for paint, improving corrosion resistance and adhesion.

Copper Plating

AMS 2418

Copper plating commonly used as an undercoat in situations where enhanced adhesion for additional coatings of other materials is desirable, as it provides smooth and uniform coverage.  Copper electroplating is sometimes used as a heat treat stop-off for masking, as it allows for selective heat-treating when needed. 

Miscellaneous Services - *

STRESS RELIEF BAKING
HYDROGEN EMBRITTLEMENT BAKING
SALT SPRAY TESTING IAW ASTM B117