ASTM A380 Passivation Standard for Stainless Steel

The American Society for Testing and Materials (ASTM) develops and maintains high standards for metal passivation services. Able Electropolishing meets, among others, the ASTM A380 passivation standard published by this organization. This set of standards specifies the industry’s best practices for cleaning, descaling and passivating stainless steel—services that Able has provided for manufacturers worldwide for years.

What is ASTM A380 Passivation?

The ASTM A380 passivation standard covers various operations in cleaning, descaling and passivating. Stainless steel parts that undergo these processes may require a variety of treatments, including precleaning, chemical descaling, degreasing and more, all of which can be accomplished different ways.

ASTM A380 allows for different types of operations, so long as they are performed to industry standards and create the required finish. This standard specifies different methods for testing the quality of the finish, including wipe tests, high-humidity tests, free iron tests, atomizer tests and more.

Electropolishing vs. Passivation



Electropolishing Example
Electropolishing Before & After Example

Passivation is useful for removing free iron and contaminants from stainless steel and for applications where maintaining part dimensions and physical properties is critical.

When a higher level of corrosion resistance and the removal of surface defects like burrs and microcracks is needed, electropolishing can be a better option.

Electropolishing removes a microscopically precise layer of surface material,  controlling removal as close as +/-.0001″, depending on the alloy. This degree of precision and consistency, along with the ability to remove a variety of surface imperfections in one process, is why electropolishing is so often specified for critical parts used in the medical field, aerospace, pharmaceutical,  and  other industries. Electropolishing is a one-stop process for a micro-smooth, ultraclean, corrosion and pathogen-resistant surface finish – with 30 times more corrosion resistance than passivation.

Electropolishing often times can eliminate the need for additional metal finishing processes like hand deburring, tumbling, pickling, and cleaning. Learn more about passivation vs. electropolishing.

Contact us to learn more about the ASTM A380 passivation standard

Learn About the Electropolishing Difference


Electropolishing 101 Webinar

Electropolishing 101
Lunch & Learn 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. Lunch will be provided!

Schedule Your Private Webinar
Try Electropolishing for Free: Sample Request

Try Electropolishing for Free:
Sample Request

Send us your parts/prototypes and we’ll electropolish them for free – we’ll even pay for the shipping! Samples are processed in 24-48 hours.

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.

Learn More  

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.

Learn More  

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.

Learn More  

Automotive

Automotive

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

Learn More  

Consumer Appliance

Consumer Appliance

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

Learn More  

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.

Learn More  

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.

Learn More  

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.

Learn More  

Electropolishing Blog

Quality Assurance in the Semiconductor Industry

Among the most demanding surface finish requirements of any industry, the specifications, standards and quality assurance processes that cover components used by the semiconductor industry impose metal finishing criteria that leave nothing to chance.

Optimizing Aerospace Components with Passivation

Crafting aerospace components demands precision down to the microscopic level. Through meticulous removal of contaminants and enhancement of corrosion resistance, metal finishing techniques such as passivation help ensure part performance and longevity.

70 Years of Electropolishing Innovation & Excellence

In the heart of a post-World War II industrial boom, a self-taught chemist and visionary, Zenon Pokvitis, laid the foundation for what would become the world’s largest electropolishing specialist — Able Electropolishing.

Electropolishing for Improved EV Battery Parts

Whatever the bumps along the road, the future of the automobile industry is electric – and the future of the EV auto industry is built on the reliability, safety and performance of its batteries.