|
Finish |
Color |
Anti-Corrosion
Properties |
Used With |
Characteristics And
Uses |
|
Black Oxide |
Black |
Good-Interior Only |
Most metals |
Decorative finish. Used on interior
applications. |
|
Black Zinc |
Black |
Excellent |
All metals |
Rich and lustrous. With or without
lacquering. |
|
Chromium (Chrome) |
Bright Blue-white |
Excellent |
All metals |
Used wherever a beautiful finish is
desired. Bright blue-white lustrous appearance. Electroplated. |
|
Brass |
|
Fair |
Steel,
usually |
Brass
electroplated which is then lacquered. Recommended only for indoor
decorative use. |
|
Nickel |
Silver |
Very good |
All metals |
A hard stable, dull white or bright
burnished finish. Used for appliances and hardware. |
|
Phosphating |
Dull, gray, black, or blue |
Excellent |
Ferrous metals |
A chemical process of rust-proofing
steel. |
|
Passivating |
- |
Excellent |
Stainless steels |
For stainless steels. A nitric acid dip
to remove foreign material and brighten finish. |
|
Silver |
Silver |
Excellent |
All metals |
Decorative, expensive, excellent electrical conductor. |
|
Zinc Electro galvanized |
Gray |
Very good |
All metals |
A commonly used finish with good rust
resistance, appearance and low cost. |
|
Hot Dip Galv. |
|
Very good |
All
metals |
Gives
maximum corrosion protection. Dull grayish color. Necessitates
thread size adjustments to permit assemblability. |
