HARD CHROME PLATING

Hard chrome plating demonstrates excellent hardness and lubricity, and is the premier engineering choice to reduce friction, minimize wear and prevent galling. These characteristics are applicable for critical engineering applications, including: machine tool cutting surfaces, cylinder bores, strut rods, crankshafts and hydraulic shafts. Hard chrome is also applied to molds because of its low surface energy and resultant release properties. hard chrome plate steel, aluminum, or copper materials, as well as many exotic alloys. In cases where parts require other finishes in addition to hard chrome

Note: There are two distinct types of chromium plating, bright chromium plating (decorative) and hard chromium plating (engineering).

HARD CHROME PLATING CAPABILITIES:

Typical Plating Thickness Range is 0.00005 to 0.02500 inches. For information on plating over 0.025 in
Hydrogen Embrittlement Relief: parts with a hardness of 36 Rc or greater will be baked a minimum of 3 hours at 375° F to relieve entrapped hydrogen
Thickness Analysis on a Fischer Technology XDL-B X-Ray Fluorescent Spec

APPLICABLE SPECIFICATIONS:

QQ-C-320
MIL-C-20218
ASTM B456
MIL-C-23422
SAE AMS 2406
HS 246 (UTC Aerospace Systems/Hamilton Sundstrand)
PN 13.06 (UTC Aerospace Systems/Hamilton Sundstrand)
PS 101 (UTC Aerospace Systems/Hamilton Sundstrand)

PROPERTIES OF INDUSTRIAL HARD CHROME:

Hardness: Plated chromium is extremely hard. A conventional bath will yield a Vickers diamond pyramid hardness of 900-1200.
Very Low Coefficient of Friction: Hard chrome plating offers extended wear life and exhibits excellent release characteristics in mold applications.

APPLICATIONS OF INDUSTRIAL HARD CHROME:

Automotive: pistons, shock absorbers and other parts that see high cycles over long periods of time are hard chrome plated for durability and lubricity.
Firearms: interiors of gun barrels are hard chrome plated.
Aerospace: landing gear components are hard chrome plated in both OEM and MRO applications. Aluminum piston heads are hard chrome plated to offer optimal performance with minimal weight. Actuator components are hard chrome plated to reduce wear and extend service life.
Machine Tools: drills, taps, dies, extrusion screws and rolls are hard chrome plated to extend life and improve performance.
Gears: hard chrome plating prevents galling and extends life in low-friction applications.
Salvage: hard chrome plating can be used to restore worn parts to their original dimensions or bring mis-machined parts into tolerance.
Plastic Molds: hard chrome plating provides anti-stick/release properties for plastic molds across all industries.