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Alloy Electropolishing

Specialty Steels Electropolishing Service

Kovar, Invar, Hiperco, L605, alloys with controlled expansion, magnetic, and high-temp properties.

L605 · HipercoLike 316 SS

KovarInvar · Magnetic

MIL-SPECCompliant

#1Largest Electropolishing Specialist

Engineered for thermal expansion control, magnetic permeability, and high-temp performance.

Electropolishing produces finishes comparable to 316 SS on Hiperco 50 and L605.

Able processes alloys many finishers cannot handle.

Send us your specialty steel sample parts and we will electropolish at no charge and return them in 2-3 days.

Benefits of Electropolishing Specialty Steels

Specialty
⚙️

Others Cannot Process

Over 70 years blending our own electrolytes.

Properties
🛡️

Properties Preserved

Magnetic, thermal, and mechanical properties maintained.

Like 316
💎

Like 316 SS

Hiperco 50 and L605 achieve a chrome-like finish.

Electronics
⚡

Electronics-Grade

For hermetic sealing.

MIL-SPEC
✨

Military Spec

MIL-SPEC compliance.

Corrosion
🔬

Corrosion Resistance

On alloys not naturally resistant.

Before & After

Electropolishing Results: Specialty Steel

BEFORE EP
→
AFTER EP

Specialty Steel, Visual Finish

Excellent finish. Contaminants removed for hermetic sealing.

Before: 8–16 µin RaAfter: 4–8 µin Ra
SEM: BEFORE ELECTROPOLISHING
SEM: AFTER ELECTROPOLISHING

Specialty Steel, SEM Surface Topography (500×)

Scanning electron microscopy reveals how electropolishing dissolves surface peaks, eliminates machining marks, and removes embedded contaminants.

Rough: peaks, burrs, inclusionsSmooth: uniform passive layer

Specialty Steels Components We Electropolish

Electronics Packaging

Kovar/Invar hermetic seals.

Magnetic Shielding

Mu-Metal enclosures.

Glass-to-Metal Seals

Kovar lead frames.

Sensors

Magnetic and strain.

Aerospace

L605 and hardware.

Power Generation

Hiperco generator parts.

Specialty Steel Alloy Finish Results

Expected finish quality from Able's electropolishing process based on extensive production experience.

Alloy Able Finish Quality EP Benefit Typical Parts Ra Before → After

Our Electropolishing Process

1

Part Evaluation

Alloy grade, geometry, heat treat condition, and finish specifications assessed by our experts.

2

Cleaning & Prep

Oils, oxides, and machining contaminants removed. Custom racking for optimal current distribution.

3

Electropolishing

Proprietary electrolyte dissolves surface peaks uniformly. A clean, passive oxide layer forms simultaneously.

4

Rinse & Dry

Thorough multi-stage rinse and controlled drying to preserve the electropolished surface quality.

5

QC & Delivery

Inspected per specification, documented, packed and shipped promptly.

Contact us to learn more about Specialty Steels electropolishing

Learn About the Electropolishing Difference


Electropolishing 101 Webinar

Electropolishing 101
Webinar

Learn everything you need to know about electropolishing as part of a private, interactive webinar. Let us know your availability and your part issues and our electropolishing experts can get you on our schedule.

Schedule Your Private Webinar
Try Electropolishing for Free: Sample Request

Try Electropolishing for Free:
Sample Request

Send us your parts and we'll electropolish them for free – we'll even pay for the shipping! Samples are processed and returned in a few days.

Request a Sample

Medical Device Manufacturing

Medical Device Manufacturing

From implantable devices to surgical instruments, electropolishing is a single-process treatment that results in biocompatible, safe and ultra clean parts.

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Aerospace

Aerospace

We offer aerospace vendors and original equipment manufacturers our signature metal finishing services to increase fatigue-resistance for their metal parts, rendering them capable of withstanding the stress and corrosion that comes with long-term use.

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Pharmaceutical

Pharmaceutical

Our strict adherence to industry standards ensures that pharmaceutical components are electropolished in accordance with ASTM B912 and ASME BPE specifications. These products are clean and smooth, corrosion resistant and contaminant free.

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Automotive

Automotive

Corrosion resistance and microfinish improvement are essential for critical automotive parts, making electropolishing an increasingly beneficial option for automakers.

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Consumer Appliance

Consumer Appliance

Our metal finishing services help increase corrosion resistance for these parts, and by removing the outermost layer of metal with electropolishing the durability and longevity of these appliance components is increased.

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Food & Beverage

Food & Beverage

Electropolishing materials for this industry eliminates the buildup of bacterial biofilms, as well as keeping the equipment free of contaminants like Salmonella. Electropolishing delivers the level of sanitation required by a number of regulatory agencies.

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Hydraulics & Pneumatics

Hydraulics & Pneumatics

From robotics to mobile equipment, the uses of electropolishing in the hydraulics and pneumatics industry are many. By helping prevent premature part failure, electropolishing reduces downtime and increases the life cycle of these components.

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Electronics

Electronics

Improving conductivity and performance is just one benefit electropolishing offers for electronics parts. The surface finish is improved by as much as 50%, removing imperfections from the material without material removal.

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Electropolishing, Passivation and Metal Surface Analytics Blog

Electropolishing for Small Modular Reactor Component Performance

Small modular reactors are entering component fabrication under tight schedule pressure. Across every coolant technology, surface integrity is becoming a qualification gate — not an afterthought.

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Why Manufacturers Use Electropolishing for Precision Metal Parts

Electropolishing is a precise and controllable process for eliminating defects from the surface of metal parts. But it’s not the only finishing process available to manufacturers; there are mechanical, chemical and plating processes that can remove defects and improve the…

Read More

High-Quality Electropolishing for Small and Intricate Parts

Metal fabrication for parts used in the medical and electronics industries can involve dimensions as small as a grain of rice — or even a strand of hair. At that scale, surface defects may be invisible to the naked eye,…

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When is Stainless Steel Passivation Required?

While stainless steel is known for its corrosion resistance, it contains iron, which is susceptible to corrosion, especially if parts are frequently exposed to moisture or harsh environments. Contamination left behind by machining processes can also impede the corrosion resistance…

Read More

Frequently Asked Questions

What services does Able Electropolishing provide?

We provide electropolishing, nitric & citric passivation, and vacuum vapor degreasing.

What are the maximum part sizes that can be processed for electropolishing, passivation, and vapor degreasing?

Electropolishing:

  • 300 & 400 series stainless steel: 108” Length x 41” Width x 42” Height
  • Copper, brass, aluminum, steel, and nickel alloys: 72” Length x 14” Width x 17” Height (best results are achieved on parts that are no larger than 12” square)
  • Titanium, Nitinol, tungsten, and niobium, etc. (refractory metals): 26” Length x 8-3/4” Width x 9-3/4” Height

Passivation:

  • Standard nitric acid passivation: 72” Length x 30” Width x 30” Height
  • Nitric acid/sodium dichromate: 20” Length, 20” Width x 20” Height
  • Citric acid: 26” Length x 18” Width x 15” Height

Vapor degrease:

  • Vapor degrease (vacuum): 23” Length x 16” Width x 10” Height

Note: If there is a question regarding our capabilities, please email a print for review to sales@ableelectropolishing.com.

What information do you require in order to receive a quotation?

We need a copy of the drawing, service needed, lot and annual quantities, process specification and packaging requirements.

What is your standard lead-time?

Standard delivery is 3 to 5 working days after receipt of order. Next day and same day services are offered at an additional cost. Please contact our sales department for further details.

What is the difference between passivation and electropolishing?

Passivation is a chemical process designed to remove free iron and other contaminants from the part surface. Electropolishing is an electro-chemical process that removes surface metal which improves micro finish, provides deburring and adds to the aesthetics of your part.

Contact an Electropolishing Expert Today