Process

Commercial Specifications

Classes Available

Finishes/Grades Available

Chromate Conversion Colors Available

Primary Purpose

Platings

Cadmium Plating

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

Class I - 0.0005" minimum thickness
Class II - 0.0003" minimum thickness
Class III - 0.0002" minimum thickness

Type I - As plated
Type II - With chromate treatment
Type III - With phosphate treatment

Colorless
Irridescent Bronze
Brown
Olive Drab
Yellow
Forrest Green

Primarily used to protect steel and cast iron against corrosion.

Chrome Plating

QQ-C-320
AMS-QQ-C-320

Class I - Corrosion protective plating
Class II - Engineering plating

Type I - Bright Finish
Type II - Satin Finish

-

The metal so produced is extremely hard and corrosion resistant. The process is used for applications where excellent wear and/or corrosion resistance is required.

Copper Plating

MIL-C-14550B
AMS 2418

Class 0 - 0.001" - 0.005" Thickness
Class 1 - 0.001" minimum thickness
Class 2 - 0.0005" minimum thickness
Class 3 - 0.0002" minimum thickness
Class 4 - 0.0001" minimum thickness

-

-

Good corrosion resistance and conductivity.

Gold Plating

MIL-G-45204C

Class 00 - 0.00002" minimum thickness
Class 0 - 0.00003" minimum thickness
Class 1 - 0.00005" minimum thickness
Class 2 - 0.0001" minimum thickness
Class 3 - 0.0002" minimum thickness
Class 4 - 0.0003" minimum thickness
Class 5 - 0.0005" minimum thickness
Class 6 - 0.0015" minimum thickness

Type I - 99.7% gold minimum
Type II - 99.0% gold minimum
Grade A - 90 Knoop maximum
Grade B - 91 - 129 Knoop
Grade C - 130 - 200 Knoop
Grade D - 201 Knoop and over

-

Good corrosion resistance and high tarnish resistance. Solderability and conductivity are excellent.

Nickel Plating

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

Class I - Corrosion protective plating
Class II - Engineering plating

Class I - Grade A through G
(0.0016" - 0.0002" Thickness)

-

Used extensively for decorative, engineering, and electroforming purposes.

Silver Plating

QQ-S-365D
ASTM B700

Grade A - Chromate post-treatment
Grade B - No supplementary treatment

Type I - Matte finish
Type II - Semi-bright finish
Type III - Bright finish

-

Good corrosion resistance and will tarnish easily. Solderability and conductivity are excellent.

Tin Plating

ASTM B545
MIL-T-10727C

Type I - Electroplated
Type II - Hot dipped

-

-

Good corrosion resistance and excellent solderability.

Vacuum Cadmium

MIL-C-8837B
AMS-C-8837

Class I - 0.0005" minimum thickness
Class II - 0.0003" minimum thickness
Class III - 0.0002" minimum thickness

Type I - As plated
Type II - With chromate treatment
Type III - With phosphate treatment

Colorless
Irridescent Bronze
Brown
Olive Drab
Yellow
Forrest Green

Primarily used to provide corrosion resistance to parts free from hydrogen contamination and possible embrittlement.

Zinc Plating

ASTM B633

Service Condition 1 (Fe/Zn 5) - mild conditions, 5mm thickness
Service Condition 2 (Fe/Zn 8) - moderate conditions, 8mm thickness
Service Condition 3 (Fe/Zn 12) - severe conditions, 12mm thickness
Service Condition 4 (Fe/Zn 25) - very severe conditions, 25mm thickness

Type I - As plated
Type II - Colored chromate conversion coatings
Type III - Colorless chromate conversion coatings
Type IV - Phosphate conversion coating

Colorless
Blue
Olive Drab
Yellow

Good corrosion resistance.

Chemical Conversion Coatings

Black Oxide

MIL-C-13924

Class 1 - Alkaline oxidizing process
Class 2 - Alkaline chromate oxidizing
Class 3 - Fused salt oxidizing process
Class 4 - Alkaline oxidizing process

Supplementary oil treatment per MIL-C-16173

-

A uniform, mostly decorative black coating. Limited corrosion resistance.

Phosphate Coating (Light)

TT-C-490E

-

Type I - Zinc phosphate spray application
Zinc phosphate immersion or dip application
Type II - Aqueous iron phosphate
Type III - Organic pretreatment coating (MIL-C-8514)
Type IV - Discontinued
Type V - Zinc phosphate

-

Type I - All-purpose pretreatment prior to painting
Type II and IV - For parts to be formed after painting
Type III - Size and shape preclude Type I, II, IV
Type V - Zinc phosphate

Phosphate Coating (Heavy)

MIL-DTL-16232G

Class 1 (Type M/Z) - Supplementary preservative treatment or coating
Class 2 (Type M) - Supplementary treatment with lubricating oil
Class 2 (Type Z) - Supplementary treatment with preservative
Class 3 (Type M/Z) - No supplementary treatment
Class 4 (Type M/Z) - Chemically converted (may be dyed to color as specified)

Type M - Manganese Phosphate Base
Type Z - Zinc Phosphate Base

-

Coating for medium and low alloy steels. Intended as a base for supplemental coatings which provide the major portion of corrosion resistance.

Electroless Plating

Electroless Nickel

MIL-C-26074F
AMS 2404C
AMS 2405B

Class 1 - As plated
Class 2 - Heat treated

Grade A - 0.001" minimum thickness
Grade B - 0.0005" minimum thickness
Grade C - 0.0015" minimum thickness

-

Used to deposit nickel without the use of an electric current.

Lubrication

Solid Film Lubrication

MIL-L-46010

-

Color 1 - Natural product color
Color 2 - Black

-

Used to reduce wear and prevent galling, corrosion, and seizure of metals.



© Copyright 2011 Sponsor's WebsiteContact Sponsor