Corrosion-Resistant Parts
304 and 316L stainless panels, brackets, covers and trays for humid, washdown, coastal and chemical-adjacent environments.
Passivated Stainless Steel Parts Passivated Stainless
Passivated Stainless
Steel Parts
Built for Corrosion Resistance
Custom stainless steel panels, brackets, trays, covers, housings and welded subassemblies with passivation-managed finishing for OEM equipment exposed to washdown, humidity, chemicals, clean handling or corrosion-sensitive service.
✓ Build-to-print scope
✓ Inspection by RFQ
✓ OEM approval boundary
RFQ Project-defined
RFQ
Example order size
Drawing
Critical dimensions
Plan
Inspection scope
OEM
Final approval
01 / What We Fabricate
Stainless Parts Where Surface Condition Matters
Passivation helps restore and strengthen the chromium-rich passive layer on stainless steel after cutting, bending, welding and finishing. For OEM parts, the value is the full fabrication route: grade selection, weld cleanup, contamination control, passivation specification and packaging after inspection.
Welded Stainless Subassemblies
TIG-welded frames, housings and guards with weld discoloration removed before passivation or final cleaning.
Clean Equipment Components
Stainless parts for medical, laboratory, food, semiconductor and clean equipment programs.
Finish-Controlled Packout
Protected handling and packaging to prevent carbon-steel transfer, scratches and post-passivation contamination.
Our scope: fabricated stainless steel parts with passivation-managed finishing
The OEM defines the final corrosion, hygiene, cleaning, regulatory or validation requirements. DRAmetal manufactures the released stainless steel parts, manages finishing and passivation to the agreed specification, and supplies the required fabrication records.
02 / Passivated Stainless Product Types
Fabricated Parts Managed Through Finishing and Passivation
This product family covers passivated stainless steel parts and corrosion-resistant sheet metal fabrication with specified finish and process records.
Panels Passivated Stainless Panels
Flat and formed equipment panels, access covers, face plates and guards with controlled grain direction, edge finishing and surface inspection.
- Grades 304 / 316L
- Finish Brushed / passivated
- Use Washdown equipment
Brackets Brackets, Trays and Supports
Stainless mounting brackets, drip trays, utility supports and formed parts where burr control and corrosion resistance are both required.
- Features Slots, holes, hardware
- Inspection Datum and edge checks
- Packout Protected surfaces
Welded Weld-Finished Stainless Parts
TIG-welded covers, frames, housings and guards with weld cleanup before passivation or customer-defined surface finishing.
- Process TIG / spot welding
- Control Heat tint removal
- Finish Passivation route
Clean Pack Clean-Packaged Stainless Kits
Passivated stainless parts packed after inspection with protective film, bags, dividers and lot identification where required.
- Scope Parts and kits
- Records Lot and revision
- Shipping Export protected
03 / Technical Capabilities
Typical Passivated Stainless Steel Parts Specification
| Materials | 304, 304L, 316, 316L and drawing-defined stainless steel grades |
|---|---|
| Thickness | Released drawing and approved material specification govern sheet, plate and tube sections |
| Fabrication | Laser cutting, punching, bending, TIG/spot welding, hardware insertion, grinding, brushing and mechanical assembly |
| Passivation route | Nitric or citric acid passivation managed to drawing, customer specification or agreed process standard |
| Surface controls | Burr removal, weld heat-tint cleanup, stainless-only handling practices, scratch review and protected packaging |
| Quality records | First article, dimensional inspection, finish review, material traceability and lot/revision packout |
04 / Manufacturing Process
From Stainless DFM to Protected Packout
01
Grade and Exposure Review
Confirm 304 vs 316L, washdown exposure, chloride risk, cosmetic faces and passivation specification.
02
Fabrication Planning
Define cutting, forming, weld access, grain direction, hardware and surface-protection requirements.
03
Cutting and Forming
Produce stainless blanks and formed features while controlling scratches, burrs and handling contamination.
04
Weld and Surface Prep
Clean weld discoloration, blend exposed seams and prepare surfaces before passivation or final finishing.
05
Passivation and Inspection
Manage the passivation route and inspect critical surfaces, edges, hardware and drawing requirements.
06
Protected Packaging
Pack finished parts to prevent abrasion, carbon-steel transfer and post-passivation contamination.
05 / Why It Matters
Why Passivated Stainless Parts Need Process Control
Passivation cannot compensate for poor fabrication. Weld heat tint, embedded iron, scratched cosmetic faces and unprotected packaging can all undermine corrosion performance.
Grade Selection
304 may work for general indoor service, while 316L is often needed for chloride, washdown and coastal exposure.
Weld Preparation
Heat tint and weld residue must be removed before passivation if corrosion resistance matters.
Iron Contamination
Carbon-steel transfer from tools, benches or packaging can create rust spots on otherwise good stainless parts.
Post-Finish Handling
Finished parts need protected packout so passivated surfaces are not damaged before installation.
Customer Project
Passivated Stainless Parts: Weld-Area Corrosion Control
Materials, fabrication decisions and results for an anonymous customer project.
Component reference image
The Customer Challenge
Weld areas corroded, the passive film was inconsistent and the earlier parts failed the specified salt-spray checks.
Project Measurements & Details
≥480 hours304 salt-spray test
≥720 hours316 salt-spray test
≥8 ÅPassive film
Results apply to the project configuration described on the linked page.
Read the Customer Project → 07 / Why Choose Us
Why OEMs Use DRAmetal for Passivated Stainless Parts
01
Fabrication-first review
We review stainless grade, welds, burrs, grain direction and packaging before treating passivation as a final checkbox.
02
Mixed stainless capability
Panels, brackets, trays, housings and welded assemblies can be produced under one revision-controlled program.
03
Surface-focused QC
Inspection covers edges, weld cleanup, hardware, cosmetic faces and protected surfaces.
04
OEM-ready documentation
Material, finish, first article and packout records can be aligned to the customer specification.
08 / Related
Related Fabricated Products
OEM purchasing and engineering
Define the Finished State Before Releasing Stainless Parts
A procurement-ready finishing note connects the stainless grade, fabrication route, final dimensions and evidence package. Review these inputs for medical-equipment panels, trays, covers and brackets before treating passivation and electropolishing as interchangeable options.
Surface condition and process route
Separate weld cleanup, grain direction, measured roughness and cosmetic appearance from the specified passivation or electropolishing route. Confirm the condition entering each process and the exposed faces that matter.
Hardware and finished dimensions
Select clinching hardware for the actual stainless panel grade, thickness and hardness. Agree processing sequence and the final measurement stage for holes, thin edges, fits and threads; do not use a universal removal allowance.
Lot-linked acceptance records
Define material identification, process records, agreed inspection results and packing identity at RFQ. A finish certificate should connect to the part and process lot; it does not replace a dimensional report or finished-device validation.
Prepare the drawing and purchasing package
- Passivation vs Electropolishing: Choosing for OEM Sheet Metal
- Stainless Weld Heat Tint: Specify Cleanup and Finish Acceptance
- Stainless Grain Direction and Roughness: Separate Drawing Notes
- Self-Clinching Fasteners in Stainless Panels: Specify the Joint
- Electropolishing Allowances: Protect Holes, Fits and Thin Edges
- Stainless Finishing Records: Link Material, Process and Part Lots
Start with your released requirements
Send the released drawing, alloy, finish and process specifications, designated surfaces, hardware list, finished-state tolerances, acceptance method, record requirements and lot quantities.
Process selection and verification are confirmed for the quoted parts and exposure conditions. A management-system certificate or process statement does not by itself establish a part's sterility, biocompatibility or equipment approval.
09 / FAQ
Passivated Stainless Steel Parts FAQ
What parts can be supplied with passivation?
We fabricate and manage passivation for stainless panels, brackets, trays, covers, housings, welded frames, guards and mechanical kits according to the drawing or finish specification.
Can you support ASTM A967 passivation requirements?
Yes. We can manufacture stainless parts to an ASTM A967 passivation note when the drawing or RFQ defines the alloy, surface condition, weld cleanup expectation, verification method and documentation level.
Do you use 304 or 316L stainless?
Both are available. 316L is usually preferred for chloride, washdown, coastal, chemical-adjacent and higher corrosion-risk applications.
Is passivated stainless steel different from coated stainless?
Yes. Passivation is not a coating. It removes surface contamination and supports the natural chromium oxide passive layer without adding paint, plating thickness or a visible color change.
Is passivation enough after welding?
Only if weld heat tint, embedded iron and surface contamination are properly removed first. We review weld cleanup and handling before passivation.
Can you provide inspection records?
Yes. We can provide material traceability, first article checks, finish review notes and lot/revision packout records when required.
Get Started Need Passivated Stainless Parts
Need Passivated Stainless Parts
Ready for OEM Assembly?
Send your drawings, stainless grade, finish note, passivation requirement, exposed surfaces and forecast quantity. We will review fabrication and corrosion-control risks before quoting.