--- title: Able Electropolishing Blog | 440c stainless steel description: 440c stainless steel | Learn how to get critical metal parts to market faster, last longer, resist corrosion, and look great with electropolishing and passivation --- - [**Free Sample**](https://go.ableelectropolishing.com/free-sample-offer) - [**Request Quote**](https://www.ableelectropolishing.com/request-a-quote/) - - - - - - - ![Able Electropolishing](https://www.ableelectropolishing.com/wp-content/themes/able/img/phone-icon.png) [(888) 868-2900 |](tel:1-888-868-2900) - ITAR Registered - [![ISO 9001 Certification](https://www.ableelectropolishing.com/wp-content/uploads/2024/09/NQA-ISO-9001-Logo-ANAB.jpg)](https://www.ableelectropolishing.com/wp-content/uploads/2023/10/ISO-9001-Certificate.pdf) - [![ISO 13485 Certification](https://www.ableelectropolishing.com/wp-content/uploads/2024/09/NQA-ISO-13485-Logo-ANAB.jpg)](https://www.ableelectropolishing.com/wp-content/uploads/2023/10/ISO-13485-Certificate.pdf) - [![AS9100 Certification](https://www.ableelectropolishing.com/wp-content/uploads/2024/10/NQA-AS9100-Logo-ANAB.png)](https://ableep.wpenginepowered.com/wp-content/uploads/2025/06/23321_05.19.25-AS9100-2016.pdf) [![Able Electropolishing](https://ableep.wpenginepowered.com/wp-content/uploads/2023/11/Able-Anniversary-Logo-Updated.png)](https://www.ableelectropolishing.com/) - [Services](https://www.ableelectropolishing.com/services/electropolishing/) - Col-1 - [Electropolishing](https://www.ableelectropolishing.com/electropolishing/) - Benefits - [Corrosion Resistance](https://www.ableelectropolishing.com/benefits-of-electropolishing/corrosion-resistance/) - [Microfinishing](https://www.ableelectropolishing.com/benefits-of-electropolishing/microfinishing/) - [Deburring](https://www.ableelectropolishing.com/benefits-of-electropolishing/deburring/) - [Ultracleaning & Decorative Finishing](https://www.ableelectropolishing.com/industry-solutions/ultra-high-purity/) - [Fatigue Life Improvement](https://www.ableelectropolishing.com/benefits-of-electropolishing/fatigue-life-improvement/) - [What Is Electropolishing?](https://www.ableelectropolishing.com/what-is-electropolishing-and-how-does-it-work/) - [Material Removal Control](https://www.ableelectropolishing.com/resources/material-removal-control/) - [Electropolishing vs. Passivation](https://www.ableelectropolishing.com/resources/passivation-vs-electropolishing/) - 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Col-2 - Technical Guide: Passivation, Pickling or Electropolishing? - ![](https://www.ableelectropolishing.com/wp-content/uploads/2025/11/ppe-guide-menu_v2.png) - [Download](https://go.ableelectropolishing.com/passivation-pickling-or-electropolishing-guide?__hstc=51647990.0a919fe92be7e1034b7c346e0750ab88.1680609944771.1681219093451.1681452951062.7&__hssc=51647990.3.1681452951062&__hsfp=2175177973) - [Alloys](https://www.ableelectropolishing.com/alloys-electropolished/) - Col-1 - Electropolishing eliminates microscopic imperfections for the following alloys: - inner-col-1 - [Stainless Steel 200 & 300 Series](https://www.ableelectropolishing.com/alloys-electropolished/200-300-series-stainless-steel/) - [Stainless Steel 400 Series](https://www.ableelectropolishing.com/alloys-electropolished/400-series-stainless-steel/) - [Aluminum](https://www.ableelectropolishing.com/alloys-electropolished/aluminum/) - [AL6XN](https://www.ableelectropolishing.com/al6xn-electropolishing/) - [Carbon Steel](https://www.ableelectropolishing.com/alloys-electropolished/carbon-steels/) - [Cobalt 21 & Cobalt-Chrome](https://www.ableelectropolishing.com/cobalt-21-cobalt-chrome-electropolishing-services/) - [Copper & Brass](https://www.ableelectropolishing.com/alloys-electropolished/copper-and-brass/) - [Elgiloy](https://www.ableelectropolishing.com/elgiloy-electropolishing/) - [Hastelloy](https://www.ableelectropolishing.com/hastelloy-electropolishing/) - [Haynes 214 & 230](https://www.ableelectropolishing.com/haynes-214-haynes-230-electropolishing/) - [Molybdenum](https://www.ableelectropolishing.com/molybdenum-electropolishing/) - [MP35N](https://www.ableelectropolishing.com/mp35n-electropolishing/) - inner-col-2 - [Nickel](https://www.ableelectropolishing.com/alloys-electropolished/nickel/) - [Nitinol](https://www.ableelectropolishing.com/alloys-electropolished/nitinol/) - [Niobium](https://www.ableelectropolishing.com/niobium-electropolishing/) - [Tantalum](https://www.ableelectropolishing.com/tantalum-electropolishing/) - [Titanium](https://www.ableelectropolishing.com/alloys-electropolished/titanium/) - [Tungsten](https://www.ableelectropolishing.com/tungsten-electropolishing/) - [TZM](https://www.ableelectropolishing.com/tzm-electropolishing/) - [Exotic & Other Metal](https://www.ableelectropolishing.com/alloys-electropolished/unusual-stainless-steel/) - [Precipitating Hardening Grade Stainless Steel](https://www.ableelectropolishing.com/alloys-electropolished/precipitating-hardening-grade/) - Col-2 - TECHNICAL GUIDE: YOUR SOLUTION TO METAL SURFACE PROBLEMS - ![](https://blog.ableelectropolishing.com/hubfs/able-menu-images/solution-guide.png) - [Download](https://go.ableelectropolishing.com/solutions-for-metal-surface-problems) - [Industries](https://www.ableelectropolishing.com/industry-solutions/) - Col-1 - [Aerospace](https://www.ableelectropolishing.com/industry-solutions/aerospace/) - [Automotive](https://www.ableelectropolishing.com/industry-solutions/automotive/) - [Consumer Appliances](https://www.ableelectropolishing.com/industry-solutions/consumer-appliances/) - [Dental](https://www.ableelectropolishing.com/industry-solutions/dental/) - 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[Power & Grid Infrastructure](https://www.ableelectropolishing.com/industry-solutions/power-grid-energy-infrastructure-electropolishing/) - [Semiconductor](https://www.ableelectropolishing.com/industry-solutions/semiconductor-industry/) - Col-3 - Technical Guide: Metal Finishing for the Medical Industry - ![](https://ableep.wpenginepowered.com/wp-content/uploads/2025/01/medical-cover.png) - [Download](https://go.ableelectropolishing.com/electropolishing-medical-industry) - [Blog](https://blog.ableelectropolishing.com/) - RECENT POSTS - [How Electropolishing Eliminates Microburrs](https://blog.ableelectropolishing.com/how-electropolishing-eliminates-microburrs) - [Electropolishing for Refractory Metals](https://blog.ableelectropolishing.com/improve-the-finish-fit-function-of-refractory-metal-parts-able) - [How Electropolishing Delivers a Defect-Free Surface Finish and Added Longevity for Hard-Working Springs](https://blog.ableelectropolishing.com/how-electropolishing-delivers-a-defect-free-surface-finish-and-added-longevity-for-hard-working-springs) - Col-2 - Technical Guide: Your Solution to Metal Surface Problems - ![](https://blog.ableelectropolishing.com/hs-fs/hubfs/solution-guide.png?width=600&name=solution-guide.png) - [Download](https://go.ableelectropolishing.com/solutions-for-metal-surface-problems) - Col-3 - Technical Guide: Passivation, Pickling or Electropolishing? - ![](https://www.ableelectropolishing.com/wp-content/uploads/2025/11/ppe-guide-menu_v2.png) - [Download](https://go.ableelectropolishing.com/passivation-pickling-or-electropolishing-guide?__hstc=51647990.0a919fe92be7e1034b7c346e0750ab88.1680609944771.1681452951062.1681460305179.8&__hssc=51647990.1.1681460305179&__hsfp=2175177973) - [Videos](https://www.ableelectropolishing.com/resources/videos/) - [Featured Videos](https://www.ableelectropolishing.com/resources/videos/) - [Before & After Electropolishing Videos](https://www.ableelectropolishing.com/resources/before-and-after-electropolishing-videos/) - [Learning Center](https://www.ableelectropolishing.com/resources/) - Col-1 - [Electropolishing 101 Webinar](https://go.ableelectropolishing.com/en/webinar) - [Case Studies](https://www.ableelectropolishing.com/resources/electropolishing-case-studies/) - [White Papers](https://www.ableelectropolishing.com/resources/white-papers/) - [Electropolishing for Metal Fasteners](https://go.ableelectropolishing.com/metal-fasteners-whitepaper) - [Electropolishing to Improve Corrosion Protection](https://go.ableelectropolishing.com/electropolishing-to-improve-corrosion-protection) - [Advantages of Electropolishing for Deburring Metal Parts](https://go.ableelectropolishing.com/deburring-whitepaper) - [Electropolishing & Passivation Standards](https://www.ableelectropolishing.com/resources/electropolishing-passivation-standards/) - [AMS 2700 Passivation](https://www.ableelectropolishing.com/resources/standards/ams-2700-passivation/) - [ASTM A380 Passivation](https://www.ableelectropolishing.com/resources/standards/astm-a380-passivation/) - [ASTM A967 Passivation](https://www.ableelectropolishing.com/resources/standards/astm-a967-passivation/) - [ASTM F86 Passivation](https://www.ableelectropolishing.com/resources/standards/astm-f86-passivation/) - [ASTM F86 Electropolishing](https://www.ableelectropolishing.com/resources/standards/astm-f86-electropolishing/) - [ASTM B912 Electropolishing](https://www.ableelectropolishing.com/resources/standards/astm-b912-electropolishing/) - [ISO 15730 Electropolishing](https://www.ableelectropolishing.com/resources/standards/iso-15730-electropolishing/) - [FAQ](https://www.ableelectropolishing.com/resources/frequently-asked-questions/) - [Passivation vs. Electropolishing](https://www.ableelectropolishing.com/resources/passivation-vs-electropolishing/) - Col-2 - [Electropolishing Before & Afters](https://www.ableelectropolishing.com/resources/case-studies/) - [Industry Technical Guides](https://www.ableelectropolishing.com/resources/technical-guides/) - [Passivation, Pickling or Electropolishing](https://go.ableelectropolishing.com/passivation-pickling-or-electropolishing-guide) - [Electropolishing for the Medical Industry](https://go.ableelectropolishing.com/electropolishing-medical-industry) - [Electropolishing for the Aerospace Industry](https://go.ableelectropolishing.com/electropolishing-aerospace-industry) - [Electropolishing for the Food Industry](https://go.ableelectropolishing.com/finishing-food-industry) - [Videos](https://www.ableelectropolishing.com/resources/videos/) - [Featured Videos](https://www.ableelectropolishing.com/resources/videos/) - [Before & After Electropolishing Videos](https://www.ableelectropolishing.com/resources/before-and-after-electropolishing-videos/) - [What Is Electropolishing](https://www.ableelectropolishing.com/resources/what-is-electropolishing/) - [Electropolishing 101 Quiz](https://www.ableelectropolishing.com/resources/electropolishing-101-quiz/) - [Blog](https://blog.ableelectropolishing.com/) - [State-of-the-Art Automation for Customized, Consistently High-Quality Results](https://blog.ableelectropolishing.com/electropolishing-automation-ensures-consist-quality-able) - [Why Able? 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[Read More](https://blog.ableelectropolishing.com/benefits-of-electropolishing-for-440c-stainless-steel) [![The Able Electropolishing Advantage](https://www.ableelectropolishing.com/wp-content/uploads/2020/12/able-advantage-thumbnail.jpg)](https://blog.ableelectropolishing.com/topic/440c-stainless-steel#popup2) ### The Able Electropolishing Advantage #### Learn how electropolishing promotes corrosion resistance, fatigue life improvement & pathogen resistance in our new video [Learn More](https://www.ableelectropolishing.com/services/electropolishing/) ![](https://www.ableelectropolishing.com/wp-content/uploads/2021/11/electropolishing-titanium-before-and-after.jpg) ### Electropolishing Before & After #### Read our case studies to learn more about the electropolishing services we have provided across a wide range of industries [Read Our Case Studies](https://www.ableelectropolishing.com/resources/case-studies/) ## ADDITIONAL RESOURCES ##### Looking for more learning resources? Here are a few more items such as techinical guides and white papers. ### [TECHNICAL GUIDES LEARN MORE](https://www.ableelectropolishing.com/resources/technical-guides/) ### [WHITE PAPERS LEARN MORE](https://www.ableelectropolishing.com/resources/white-papers/) ### [CASE STUDIES LEARN MORE](https://www.ableelectropolishing.com/resources/case-studies/) ### [STANDARDS LEARN MORE](https://www.ableelectropolishing.com/resources/electropolishing-passivation-standards/) ### [ELECTROPOLISHING 101 LEARN MORE](https://www.ableelectropolishing.com/resources/electropolishing-basics/) ### [PASSIVATION LEARN MORE](https://www.ableelectropolishing.com/resources/passivation-vs-electropolishing/) ### [FAQ LEARN MORE](https://www.ableelectropolishing.com/resources/frequently-asked-questions/) ### [MORE](https://www.ableelectropolishing.com/resources) ![](https://blog.ableelectropolishing.com/hubfs/Image/Able2019_Blog/able_metal_nut.jpg) ## CERTIFICATIONS & STANDARDS ![](https://www.ableelectropolishing.com/wp-content/uploads/2024/09/NQA-ISO-9001-Logo-ANAB.jpg) ![](https://www.ableelectropolishing.com/wp-content/uploads/2024/09/NQA-ISO-13485-Logo-ANAB.jpg) ![](https://www.ableelectropolishing.com/wp-content/uploads/2024/10/NQA-AS9100-Logo-ANAB.png) ![](https://blog.ableelectropolishing.com/hubfs/certs/certify4.png) ![](https://blog.ableelectropolishing.com/hubfs/certs/certify5.png) ![](https://blog.ableelectropolishing.com/hubfs/certs/certify6.png) ![](https://blog.ableelectropolishing.com/hubfs/certs/certify7.png) ![Able Electropolishing](https://ableep.wpenginepowered.com/wp-content/uploads/2023/11/Able-Anniversary-Logo-Updated.png) - *Precision Electropolishing Services* - 2001 S. 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