Titanium Submersible Pressure Hull is a marine-grade manned submersible pressure component designed for Manned submersible pressure shell segment (Grade 23). Fabricated from Grade 5 Ti-6Al-4V, it provides immunity to seawater corrosion, chloride stress corrosion cracking, and biofouling — eliminating the need for cathodic protection in submerged service.
Titanium Submersible Pressure Hull
| Technical Parameter | Specification |
|---|---|
| Component SKU | TI-MRN-DEE-SUBMER |
| Standards & Specifications | ASTM B348 |
| Surface Finish | Passivation ASTM F86 (20-30% HNO3, 30min @50C) |
Titanium Submersible Pressure Hull
Manned submersible pressure shell segment (Grade 23)
| Technical Parameter | Specification Value |
|---|---|
| International Compliance | ASTM B348 |
| Surface Finish & Max Temp | Passivation ASTM F86 (20-30% HNO3, 30min @50C) |
- • 100% Traceability: Mill Test Certificate (EN 10204 3.1) with heat analysis & mechanical testing.
- • Compliance: REACH, RoHS 3 certified. FAI AS9102 available.
- • Process: CNC precision machining, vacuum stress relief, thread rolling, surface passivation.
- • Thermal Stress Relief: Post-machining vacuum annealing (540-675°C under Argon) reduces distortion risk >70%.
- • Rolled Threads: Thread rolling (not cutting) increases fatigue limits by 30-50%.
Q: What is the seawater corrosion rate of Titanium Submersible Pressure Hull? ▼
Grade 5 Ti-6Al-4V exhibits a general corrosion rate of <0.01 mm/year in quiescent seawater and <0.05 mm/year in high-flow (5 m/s) seawater. Unlike stainless steels, Titanium Submersible Pressure Hull is immune to chloride stress corrosion cracking and pitting corrosion up to 260°C. For manned submersible pressure in submerged service, no cathodic protection is required — a significant cost advantage over steel and aluminum.
Q: What is the typical lead time for Titanium Submersible Pressure Hull orders? ▼
Standard lead time for Titanium Submersible Pressure Hull is 15-25 business days depending on quantity and complexity. Rush orders (3-5 working days) are available for prototype evaluation. Sample evaluation (1-5 units) can be expedited to 5-7 business days. Volume pricing is available for production quantities above 100 units.
Q: What material certifications are provided with Titanium Submersible Pressure Hull? ▼
Each Titanium Submersible Pressure Hull shipment includes EN 10204 Type 3.1 mill test certificate with chemical analysis, mechanical properties, and heat identification. Dimensional inspection reports and Certificate of Conformance (CoC) are standard. First Article Inspection Reports (FAIR) per AS9102 are available on request for manned submersible pressure.
§ Why Grade 5 Ti-6Al-4V for manned submersible pressure
Function
Engineered as a Deep Sea component, this part serves the specific function of . Grade 5 Ti-6Al-4V ELI was selected for its proven performance in Marine & Offshore service conditions.
Specifications
- SKU: TI-MRN-DEE-SUBMER
- Category: Deep Sea
- Industry: Marine & Offshore
- Material: Grade 5 Ti-6Al-4V ELI
- Process: CNC precision machining, vacuum stress relief, thread rolling, surface passivation
- Weight: 35-45% lighter than steel equivalents at equivalent section modulus
§ Hydrostatic & NDT Verification
Quality Management
Production executed in AS9100D-certified facility. Material certificates, dimensional reports, and surface finish certifications accompany every shipment of Titanium Submersible Pressure Hull components.
Inspection & NDT
Full dimensional layout per AS9102 FAIR requirements; ultrasonic immersion scanning for volumetric integrity; micro-hardness traverse on heat-affected zones
§ Marine-Grade Fabrication Process
Titanium Submersible Pressure Hull is manufactured using cnc precision machining, vacuum stress relief, thread rolling, surface passivation. Each operation is performed by certified machinists with real-time process monitoring and dimensional verification at critical stages. Heat code traceability is maintained throughout all production steps.
Commercial Logistics & Procurement Framework
Pricing and lead times for Titanium Submersible Pressure Hull are batch-dependent. Contact our supply chain team for volume-based tiered pricing.
Regulatory & Quality Assurance Ledger
Verifiable certifications for Titanium Submersible Pressure Hull
Material Test Certificate (MTC)
EN 10204 3.1
Environmental Compliance
REACH (EC No 1907/2006)
Restricted Substances
RoHS 3 Directive (2015/863/EU)
Quality Management System
ISO 9001:2015
Dimensional Tolerances
ISO 2768-m
Standard: ASTM B348
Systems Interconnectivity & Topology
Cross-functional integration matrix for Tier-1 supply chains and assembly orchestration.
- ▸ Primary Assembly Integration
- ▸ Subsystem Mounting Interface
Titanium Submersible Pressure Hull
Material: Grade 5 Ti-6Al-4V ELI
SKU: TI-MRN-DEE-SUBMER
Industry: Marine & Offshore / System: Deep-Sea Exploration & ROV/AUV Hardware
- ▸ Fastener Kit A
- ▸ Sealing Gasket
- ▸ Protective Cover
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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.