Stainless Steel Electropolishing Services

At National Plating Company we provide high quality electropolishing services designed for customers with commercial or industrial application needs. Our advanced electropolishing and vibratory finishing systems utilize temperature controllers and digital timers, to ensure precision, repeatable results. We specialize in the Electropolishing of mechanical and machined components. These systems are capable of electropolishing parts up to 40" in length, 16" in diameter, and up to 500 lbs., and in full compliance with ASTM B912 standards for our stainless steel.

We offer various inspection options such as wet lab, x-ray, and plating thickness verification. In addition we also offer testing such as water immersion, 24 hour humidity, and salt spray. We are capable of single part orders and up to 100,000 part volume with finish designations down to #8. At National Plating Company we offer quick turnaround with typical lead times of 2 to 3 days. For more information on our electropolishing capability, see the table below, or contact us directly.

Electropolishing Example Photo Gallery

(Click on thumbnail to enlarge)

Investment Cast 316 SS

The Part: Investment Cast 316 SS
Approx Size: 2" x 3" x 6"; 1 lb.
Scope: Creating food-safe surface
before machining

Complex stamped and welded 304 SS

The Part: Complex stamped and
welded 304 SS
Approx Size: 18"dia x 5'long; 18 lbs.
Scope: Improve appearance;
eliminate weld scale & remove burrs

Stamped, welded, flat 304 SS

The Part: Stamped, welded, flat 304 SS
Approx Size: 26" x 40"; 10 lbs.
Scope: Create food-safe surface;
remove burrs & eliminate weld scale

Tin Plated Bearings

The Part: Sand cast, welded,
machined 316 SS
Approx Size: 12" Major Dia; 40 lbs.
Scope: Create food-safe surface
inside, outside & eliminate weld scale

Tin Plating of Bearings

The Part: Earrings--laser cut,, hand
polished 316 SS
Approx Size: See pic;; .04 lbs.
Scope: Create very highly polished,
medically-safe outside surface

Babbitt-Lined Bearing

The Part: Forged, welded 316 SS
Approx Size: 6"dia x 40"long; 28 lbs.
Scope: Prepare surface for continual
saltwater exposure on a yacht

Tin Plated Bearings

The Part: Punched, formed, welded
304 SS
Approx Size: 12"dia x 5"long; 5 lbs.
Scope: Improve outside appearance;
eliminate weld scale & reduce burrs

Tin Plating of Bearings

The Part: Punched, formed, and
assembled 304 SS
Approx Size: 5" x 5" x2", 1.5 lbs.
Scope: Improve outside appearance,
including applied latched, hinges, etc.

Babbitt-Lined Bearing

The Part: Welded tank body; 304 SS
Approx Size: .24"dia x 40"long; 55 lbs.
Scope: Improve outside appearance;
eliminate weld scale & reduce burrs

Electropolishing Service Details

Polishing Processes: Electropolishing

Equipment

Racks Temperature Controllers: Digital Timers

Polished Parts

Mechanical Raw Castings Machined: Laser Cut
Welded

Finish Designations: Down to RMA 8

Substrate

Stainless Steel

301 15-5

304 17-4

316 17-7

410 Carpenter 18-FM

Nitronic 60

Standards

ASTM B912: Company Specifications

Part Length: Up to 40 in

Part Diameter: Up to 22.5 in

Part Weight: .1 oz. to 500 lbs.

Inspection

Wet Lab Profilometer: Caliper
Micrometer

Testing

Ferroxyl Water Immersion 24 Hour Humidity: Chemistry
Salt Spray

Quality Plan

Racks Used Written process Steps: Electrical Settings and Times
Photos

Additional Services

Count Pack Label

Bar Code
Ship

24 Hr Humidity Test

Salt Spray Test

Production Volume: 1 to 5,000 parts

Typical Lead Time

2 to 3 days: Same Day Rush Service (No Charge)

Industry Focus

Automotive Trucks Trains Aerospace Agriculture: Marine
Food Service
Medical
Pharmaceutical
Research

Intended Application

Pumps Filters Tanks Distillation Chambers: Mechanical Parts
Scientific Parts
Earrings
Bracelets

Industry Standards

ISO Compliant ASTM B912: RoHS Compliant

Environment: OSHA Inspection: No Exposure

File Formats

PDF: JPG