Gr5 Titanium
Engineering Inventory
Precision Fasteners & Titanium Hardware
Manufactured from certified Grade 5 (Ti-6Al-4V) and Grade 2 raw materials in Baoji, China. Built for superior corrosion protection, high structural loads, and severe coastal deployments across Da Nang.
High Precision
PVD Gold
CNC Machined
DIN 912
Torx Flange
Anodized Gold
High Strength
Technical Whitepaper
Electrochemical Performance & Material Metallurgical Integrity
A rigorous engineering analysis of mixed metal oxide (MMO) catalytic coatings, titanium substrate passivation mechanisms, and mechanical stability under high salinity and chemical processing conditions.
Substrate Integrity and Ruthenium-Iridium-Tantalum Formulations
In central coastal Vietnam, electrochemical plants, municipal desalination operations, and marine infrastructure face severe pitting and galvanic degradation due to elevated seawater temperatures and fluctuating chloride concentrations. An effective Mixed Metal Oxide (MMO) titanium anode relies on an electrocatalytically active layer applied directly to an acid-etched commercially pure ASTM B265 Grade 1 or Grade 2 titanium matrix. At Navzo, our precision manufacturing facility in Baoji integrates automated thermal decomposition processes that apply micro-coatings of Ruthenium Oxide (RuO2), Iridium Oxide (IrO2), and Tantalum Pentoxide (Ta2O5). This specialized crystalline lattice achieves an exceptionally low chlorine evolution overpotential (<1.12 V vs. SCE), minimizing electrical power consumption in industrial sodium hypochlorite production while mitigating substrate passivation.
When specifying dimensionally stable anodes (DSA) for aggressive electrolytes, mechanical fastening systems must exhibit an equivalent electrochemical barrier. Pairing superior MMO anode plates, ribbons, or tubular structures with sub-par stainless steel fasteners (such as AISI 304 or 316) creates rapid catastrophic crevice corrosion and galvanic couples. Navzo solves this vulnerability across the Da Nang supply chain by pairing our MMO assemblies with certified Grade 5 (Ti-6Al-4V) titanium fasteners. Featuring an ultimate tensile strength exceeding 895 MPa and complete chemical immunity to active hypochlorite and wet chlorine gases, our integrated systems prevent catastrophic joint failures in continuous electrochemical processes.
| Alloy / Coating Specification | Yield Strength (0.2% offset) | Tensile Strength (MPa) | Chlorine Evolution Overpotential | Primary Industrial Utility |
|---|---|---|---|---|
| MMO Coated Gr1/Gr2 Substrate | ≥170 - 275 MPa | ≥240 - 345 MPa | <1.13 V (3M NaCl, 20°C) | Seawater Chlorination, Cathodic Protection (ICCP), Water Treatment |
| Gr5 (Ti-6Al-4V) Fasteners | ≥828 MPa | ≥895 MPa | Passivated Dielectric Base | Electrode Framework Assembly, Flange Bolting, Marine Fixtures |
| AISI 316L Stainless Steel (Reference) | ≥220 MPa | ≥520 MPa | Susceptible to Crevice Pitting | Standard Mechanical Fittings (Unsuitable for Wet Chlorine) |
| Platinum Plated Titanium (Pt/Ti) | ≥275 MPa | ≥345 MPa | 1.45 - 1.60 V (High vs SCE) | Electroplating, Chromium Bath Electrowinning |
Regional Integration
Mission-Critical Applications Across Da Nang
Addressing engineering challenges in Central Vietnam’s expanding maritime logistics, high-tech industrial parks, and coastal civil infrastructure.
Lien Chieu Port Marine Cathodic Protection
As construction expands on the strategic Lien Chieu Mega-Port, deepwater sheet steel piles, subsea pipelines, and docking berths demand high-reliability Impressed Current Cathodic Protection (ICCP). Navzo MMO tubular and ribbon anodes provide stable protective currents over 30+ year design lives in high-velocity brackish and open seawater environments, directly neutralizing microbial and chloride corrosion.
Hoa Khanh & Da Nang Hi-Tech Park PCB Electrometallurgy
The rapid expansion of semiconductor assembly and electronics fabrication in the Da Nang Hi-Tech Park requires precision electroplating chemistry. Navzo dimensionally stable iridium-tantalum coated titanium anodes ensure zero copper bath contamination, uniform current density distribution across high-aspect-ratio vias, and constant bath geometry, outperforming soluble copper anodes.
Son Tra Coastal Desalination & Disinfection
Da Nang's prominent hospitality and luxury resort properties along the Son Tra peninsula rely heavily on on-site electro-chlorination systems for swimming pool water treatment and reverse osmosis seawater intake biofouling mitigation. Our Ru-Ir oxide coated titanium anodes ensure consistent, on-demand sodium hypochlorite generation without hazardous bulk chlorine chemical handling.
Market Dynamics
Emerging Trends Driving MMO Titanium Adoption
Macroeconomic and environmental factors modernizing Da Nang’s industrial manufacturing infrastructure.
Central Vietnam's Green Growth & Industrial Decarbonization Mandate
Vietnam’s strict environmental standards and zero-carbon commitments are transforming chemical processing, textile treatment, and electroplating practices in the Da Nang economic zone. Traditional lead dioxide (PbO2) and graphite anodes are being phased out across municipal and industrial wastewater installations due to heavy metal leaching risks and energy-wasting overpotentials. Dimensionally Stable Anodes (DSA) utilizing IrO2-Ta2O5 catalytic layers reduce cell operating voltages by 15% to 22%, dramatically cutting the kilowatt-hour expenditure of continuous advanced oxidation electrochemical processes.
Concurrently, the rapid transition toward automated aquaculture operations in neighboring Thua Thien Hue and Quang Nam provinces has driven decentralized hypochlorite biocide generators. By applying titanium MMO cells directly to filtered brackish water lines, pathogen counts (such as Vibrio species) are neutralized without introducing chemical residues, directly safeguarding commercial shrimp farming revenues and adhering to international food-safety export certifications.
Why Navzo
Integrated Manufacturing & Baoji Supply Chain Authority
Delivering uncompromised metallurgical standards, rapid lead times, and engineering authority directly from China's premier Titanium Valley to Da Nang project sites.
Certified Baoji Raw Material Security
Founded on January 10, 2011 on Yucai Road in the High-tech Development Zone of Baoji, Navzo sits at the center of China’s titanium cluster. We source primary sponge, ingots, and bar stocks directly from Tier-1 mills, providing complete material heat traceability and MTR certificates with every shipment.
End-to-End In-House Production
From cold and hot heading, thread rolling, and 5-axis CNC precision machining to automated chemical etching and multi-stage MMO thermal decomposition, all processing steps are conducted under strict ISO-compliant operating procedures to eliminate cross-contamination.
Rapid International Technical Dispatch
With an on-site verified facility, an Alibaba 4.9/5 store rating, and an audited reorder rate above 34%, our multidisciplinary engineering export team maintains an average RFQ response time under 1 hour, supporting urgent project turnarounds throughout Central Vietnam.
Procurement Intelligence
Frequently Asked Questions by Da Nang Engineers
Authoritative insights addressing customs documentation, electrolyte optimization, mechanical fastening, and MMO operational lifetimes.
How does Navzo support cross-border logistics and customs into Da Nang Port?
All shipments destined for Da Nang, Tien Sa Port, or Da Nang International Airport (DAD) are exported with comprehensive documentation packs: Form E certificates of origin (securing preferential tariff rates under the ACFTA framework), detailed Mill Test Reports (MTR) according to EN 10204 3.1, standardized commercial invoices, and packing manifests with complete HS code categorization (e.g., Anodes under 8543.30, Fasteners under 8108.90).
What is the operational lifespan of MMO anodes in seawater electrolysis systems?
The active lifespan depends on operating current density (A/m²), electrolyte chloride concentration, and operating temperatures. In typical Central Vietnam ambient seawater (28°C–32°C, 35,000 ppm TDS) running at a nominal current density of 1,000–1,500 A/m², our Ru-Ir oxide formulations achieve a guaranteed design life of 5 to 7 years, while specialized ICCP systems operating at lower current densities routinely exceed 25 years.
Can MMO coated anodes be stripped and recoated once depleted?
Yes. The commercially pure titanium substrate maintains exceptional structural stability. Provided the parent metal matrix has not experienced unmonitored electrical spark erosion or severe reverse-polarity acid damage, Navzo provides chemical stripping, mechanical surface reactivation, and re-thermal coating services, significantly lowering lifecycle expenditure.
Why is Grade 5 (Ti-6Al-4V) specified for structural hardware instead of pure Grade 2?
While commercially pure Grade 2 provides exceptional corrosion resistance for anode substrate mesh and plates, its mechanical tensile yield strength (approximately 275 MPa) is insufficient for high-torque structural assemblies, pump flanges, and marine fixtures. Grade 5 titanium offers an ultimate tensile strength exceeding 895 MPa, matching or exceeding Grade 8.8 steel while remaining completely immune to chloride stress cracking.
What anti-seize precautions are required when assembling titanium bolts into titanium assemblies?
Titanium alloys exhibit a high friction coefficient and natural passive oxide film that can cause galling under dry mechanical thread friction. We advise applying a nickel-free, high-purity synthetic lubricant, MoS2-based grease, or choosing our PVD/electrolytic oxide-coated fasteners to preserve thread integrity and maintain predictable pre-load clamp torque values.
Can custom anode geometries be produced to accommodate retrofits in Da Nang plants?
Yes. We regularly supply tailored OEM geometries including diamond expanded mesh sheets, solid plates, slotted cylindrical discs, perforated tubes, and custom bus-bar assemblies based on client-provided 2D/3D CAD models (DWG, STEP, PDF). Our Baoji engineering team conducts structural review, current density verification, and tolerance assessments prior to production.
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