Enhancing stainless steel surfaces with passivation
meviy now offers manual quoting for passivation on CNC-milled and turned stainless-steel parts, giving engineers a dependable way to enhance corrosion resistance, surface cleanliness, and long-term performance. By removing surface impurities and strengthening the natural oxide layer of stainless steel components, passivation ensures durable, high-quality finishes suitable for demanding industrial and environmental applications.
This new capability benefits engineers in sectors such as medical devices, food processing, chemical equipment, and marine applications, where surface quality and corrosion protection are crucial.
What is passivation?
Passivation is a chemical treatment applied to stainless steel that removes contaminants from the surface, such as free iron or machining residues, and reinforces the material’s natural protective oxide layer. The result is a cleaner surface, improved corrosion resistance, and a longer-lasting component, without altering the part’s dimensions or mechanical properties.
Passivation with meviy: applicable materials
Manual quotes on passivation is available for the following stainless steel grades:
CNC milled parts
- EN 1.4305 equivalent
- EN 1.4305 equivalent (annealed material)
- EN 1.4301 equivalent
- EN 1.4301 equivalent (annealed material)
- EN 1.4401 equivalent
- EN 1.4404 equivalent
CNC turned parts
- EN 1.4305 equivalent
- EN 1.4301 equivalent
- EN 1.4404 equivalent
Size limitations
Part Type | Max Size | Max Weight |
|---|---|---|
| MP (Milled Parts) | X400 × Y300 × Z70 | 50 kg |
| TP (Turned Parts) | Ø200 × L300 | 10 kg |
These size limitations ensure optimal passivation coverage and consistent surface quality across all treated parts.
What engineers struggle with
Before this release, engineers using stainless steel parts faced significant limitations when it came to corrosion protection within meviy. Finishing had to be done externally, adding extra steps, increased costs, and potential quality inconsistencies. This additional effort slowed production and made it harder to reliably meet specifications.
What this launch changes
With the introduction of passivation for machined stainless steel plates, this gap is now closed. The new integrated process removes surface impurities and strengthens the material’s natural oxide layer. As a result, meviy now delivers cleaner, corrosion-resistant surfaces directly from the factory, without the need for external post-processing—efficient, reliable, and consistently high quality.
Benefits of passivation for CNC parts
Passivation enhances the value of CNC stainless-steel components by improving surface quality, corrosion resistance, and durability – making parts ideal for demanding environments.
- Improved corrosion resistance: Strengthens the natural oxide layer to prevent rust.
- Cleaner surfaces: Removes residual contaminants and free iron from machining.
- Enhanced reliability: Ensures consistent performance in demanding applications.
- Long-term protection: Extends component lifespan without altering dimensions.
- Compatibility: Works seamlessly with existing CNC milling and turning processes.
Conclusion
meviy’s manual passivation service for stainless steel CNC milled and turned parts delivers cleaner surfaces, enhanced corrosion resistance, and long-lasting performance for a wide range of applications. By expanding our service offerings, engineers can now ensure high-quality finishes and reliable components without additional processing steps, streamlining production and maintaining precision from prototype to full-scale production.
What is meviy
meviy is an AI-powered on-demand manufacturing platform from MISUMI. Engineers can upload 3D CAD models to receive instant quotations, manufacturability checks, and lead time estimates. The platform delivers bespoke components to exact specifications across CNC milling, CNC Turning and Sheet Metals. With no minimum order quantity, teams can order from a single part upwards. By streamlining procurement and accelerating product development, meviy enables engineers to bring designs to life faster. Its AI also supports part recognition, interactive design editing, and compatibility with a wide range of materials – making it a smart and reliable tool for modern product development. Backed by MISUMI’s quality standards, customers can expect consistent precision with every order.
FAQ
Q1: Which stainless steel grades are eligible for passivation with meviy?
A1: meviy supports passivation for EN 1.4305, EN 1.4301, EN 1.4401, and EN 1.4404 for both milled and turned parts, with annealed options available for select grades.
Q2: Does passivation change the part’s dimensions or mechanical properties?
A2: No. Passivation is a surface treatment that preserves the part’s original dimensions and mechanical characteristics while improving corrosion resistance.
Q3: Why is passivation important for stainless steel components?
A3: It removes surface contaminants and enhances the natural oxide layer, which is essential for corrosion resistance, hygiene, and long-term reliability.
Q4: Can the passivation service be combined with other surface treatments at meviy?
A4: Yes. Passivation can be applied alongside other treatments supported by meviy, depending on material compatibility and design requirements.
