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National Plating Company

Plating & Finishing Related Services Including Tin Plating, Zinc Plating, Electropolishing & Passivation Services

Stainless Steel Passivation Services


As a provider of advanced coating and finishing services, National Plating Company passivates stainless steel. Our passivation process utilizes nitric acid to remove surface impurities such as free iron. This is accomplished with state-of-the-art systems that are equipped with temperature controllers and timers which ensure process integrity. This is augmented by both pre- and post-cleaning of all passivated parts.

Because we deliver this service to so many industries we can provide full compliance with a wide range of finishing standards including ASTM A967, QQ-P-35, ASTM A380, AMS 2700, and various Mil-specs. We are capable of treating parts up to 6' in length, and 3.5' in height and width. Our facility is geared for volumes from 1 to 100,000 parts weighing up to 500 lbs. In addition to inspection capabilities we also offer part testing with copper sulfate, ferroxyl, water immersion, and 24 hour humidity testing. After the passivation process is complete we also offer additional services such as part counting, packing, labeling, bar coding, and shipping to the customer's requested destination. At National Plating Company our advanced technology and over 100 years of experience provide quality part passivation above and beyond customer expectations.

For more information on our passivating capability, see the table below, or contact us directly.

Passivation Example Photo Gallery

(Click on thumbnail to enlarge)

Passivation Capabilities

Media
Nitric Acid
Substrate
Stainless Steel
Removes
Free Iron
Surface Impurities
Equipment
Temperature Controllers
Digital Timers
Pre-Operations
Cleaning
Post-Operations
Rinsing
Standards
ASTM A967
QQ-P-35
ASTM A380
AMS 2700
Mil-Spec
Length
Up to 6 ft.
Width
Up to 3.5 ft.
Height
Up to 3.5 ft.
Part Weight
.00005 to 500 lb.
Inspection
Wet Lab
X-ray
Plating Thickness
Profilometer
Spectrophotometers
Testing
Copper Sulfate
Ferroxyl
Water Immersion
24-Hour Humidity
Chemistry
Salt Spray
Quality Plan
Equipment Used
Process Steps
Electrical Settings and Times
Photos
Additional Services
Count
Pack
Label
Bar Code
Ship
Production Volume
1 to 100,000 parts
Typical Lead Time
2 to 3 days
Same Day Rush Service (No Charge)
Industry Focus
Aerospace
Agriculture
Automotive
Electrical
Food Service
Marine
Medical
Pharmaceutical
Research
Intended Application
Reduce Friction
Springs
Lead Screws
Shafts
Housings
Bearings
Reduce Product Contamination
Filters
Chambers
Screens
Hydraulics
Pipes
Pumps
Valves
Tanks
Industry Standards
ISO Compliant
ASTM A380
ASTM A967
QQ-P 35
AMS 2700
RoHS Compliant
Environment
OSHA Inspection: No Exposure
File Formats
PDF
JPG