BOZE CNC Ti | Surface Treatment

Passivation (ASTM F86)

Passivation (ASTM F86) capability for titanium components

Grade 1, Grade 2, Grade 5 (Ti-6Al-4V), Grade 7, Grade 9, Grade 23 Common Grades
Tank: 1200 × 800 × 600 mm Thickness Range
No dimensional change; removes < 1 µm contamination Cutting Tolerance
No dimensional change; removes < 1 µm contamination Tolerance
Strips discoloration; restores uniform matte appearance Surface Finish

What is Passivation (ASTM F86)?

Passivation (ASTM F86) capability for titanium components

Surface engineering capability for Passivation (ASTM F86), with process control, bath chemistry monitoring, and batch consistency validation.

Engineering Parameters & Capabilities

Chemical passivation of titanium per ASTM B600 removes surface contamination (embedded iron, heat tint) and restores the natural passive oxide layer. The nitric-hydrofluoric acid bath preferentially dissolves contaminant particles without attacking the base titanium, specifically for titanium components. Precision titanium components present unique challenges: Balancing dimensional accuracy with cost per part. Process selection (mill vs. turn vs. EDM vs. optimized for each feature.

Parameter Specification
Mechanism Chemical dissolution of contaminants in acid bath
Material Removed < 1 µm (contaminant layer only)
Standards ASTM B600 / AMS 2700

Engineering Capabilities & Limits

Surface engineering capability for Passivation (ASTM F86), with process control, bath chemistry monitoring, and batch consistency validation.

Hole Types Supported

N/A

Heat Control Measures

Solution at 50–60°C with acid concentration monitored by titration. Parts fully immersed with agitation for uniform exposure.

Flatness & Stress Relief

Chemical process — no mechanical force. Dimensional stability maintained.

Tolerance

No dimensional change; removes < 1 µm contamination

Secondary Operations & Downstream Processing

Enhance your component with our integrated downstream services:

Surface Inspection

Ferroxyl test to verify absence of free iron contamination.

Deburring

Deburring for passivation (astm f86) components.

Dimensional Inspection

Dimensional Inspection for passivation (astm f86) components.

Surface Treatment as Required

Surface Treatment as Required for passivation (astm f86) components.

Quality Assurance & Inspection

Inspection Items

  • Passivation (ASTM F86) specific dimensional verification (CMM / vision)
  • Material grade verification (PMI / OES spectrometer)

Quality Standards & Certifications

  • ISO 9001:2015 — Quality Management System
  • AS9100D — Aerospace Quality Management
  • ASTM B265 — Titanium Strip, Sheet, and Plate Standard

Frequently Asked Questions

What titanium grades are suitable for Passivation (ASTM F86)?
Passivation (ASTM F86) can be performed on Grade 1, Grade 2, Grade 5 (Ti-6Al-4V), Grade 7, and other grades. The specific grade selection depends on the required mechanical properties, corrosion resistance, and end-use application requirements.
What tolerances can be achieved with Passivation (ASTM F86)?
Typical achievable tolerances for Passivation (ASTM F86) are No dimensional change; removes < 1 µm contamination. Tighter tolerances may be possible depending on part geometry, material condition, and quantity. Our engineering team reviews each project to determine the optimal tolerance-cost balance.
What quality certifications apply to Passivation (ASTM F86)?
All Passivation (ASTM F86) operations are performed under ISO 9001:2015 — Quality Management System, AS9100D — Aerospace Quality Management, ASTM B265 — Titanium Strip, Sheet, and Plate Standard certified quality management systems. Full traceability documentation, material certifications (EN 10204 3.1), and inspection reports are provided with each shipment.
What is the typical lead time for Passivation (ASTM F86) projects?
Lead times for Passivation (ASTM F86) vary by complexity and quantity. Prototype quantities (1-10 units) can typically be completed in 3-7 business days. Production quantities require 15-25 business days. Rush orders are available for qualifying projects. Contact our sales team for a specific timeline.
Can you provide DFM feedback for my Passivation (ASTM F86) design?
Yes. We provide free Design for Manufacturability (DFM) analysis for all new projects. Simply upload your CAD file (STEP, DXF, or DWG format) and our engineering team will review your design and provide optimization suggestions within 24 hours.

Systems Requiring This Capability

1 product systems that depend on Passivation (ASTM F86).

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Surgical Instruments

Ergonomic handles, slender jaws/shanks, pivot joints, ratchet mechanisms, often one-piece constructi

5 components

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About Boze Titanium Manufacturing Center

One Metal. One Focus. Infinite Precision.

Founded in 2011 in Baoji's Titanium Valley, BOZE Metal is dedicated exclusively to titanium — from raw material to precision engineering. AS9100D, ISO 13485 & ISO 9001 certified with 500+ clients across Aerospace, Medical & Motorsport industries, we deliver end-to-end precision titanium CNC machining with full material traceability from source to component.

Boze CNC Ti is the dedicated titanium manufacturing center of Baoji Boze Metal Products Co., Ltd.

AS9100D ISO 13485 ISO 9001 500+ Clients 15+ Years OEM/ODM
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