As a leading China-based titanium alloy manufacturer with over 20 years of experience, we supply precision-manufactured titanium products fully certified to ASTM, ASME, NACE and all major classification society standards. From FPSO process piping to offshore wind foundations and deep-sea exploration equipment, our marine-grade titanium alloys offer the optimal balance of performance and cost-effectiveness for global offshore industry customers.
| Item | Details |
|---|---|
| Executive Standards | 1. International Material Standards: ASTM B337 (Seamless Pipe), ASTM B338 (Welded Pipe), ASTM B348 (Bar/Rod)
2. Offshore Standards: NACE MR0175/ISO 15156-3, API 5LC, API 6A 3. Marine Standards: ABS, DNV, LR, BV, CCS, RINA 4. Pressure Vessel Standards: ASME Section VIII Div.1 5. Testing Standards: ASTM E8, ASTM G48 (Pitting/Crevice), ASTM E243 (Eddy Current) |
| Material Grades | 1. Titanium Grade 2 (UNS R50400): Commercially pure titanium, most widely used marine grade, excellent corrosion resistance
2. Titanium Grade 5 (UNS R56400): Ti-6Al-4V, high-strength alloy for structural components 3. Titanium Grade 7 (UNS R52400): Ti-0.2Pd, superior crevice corrosion resistance in low-pH and sour environments 4. Titanium Grade 9 (UNS R56320): Ti-3Al-2.5V, balanced strength and formability, ideal for hydraulic tubing 5. Titanium Grade 12 (UNS R53400): Ti-0.3Mo-0.8Ni, excellent high-temperature corrosion resistance |
| Chemical Composition (Weight %) | Grade 2: Ti≥99.2, O≤0.25, Fe≤0.30, C≤0.08, N≤0.03, H≤0.015
Grade 5: Ti=Balance, Al5.5-6.75, V3.5-4.5, Fe≤0.30, O≤0.20, C≤0.08, N≤0.05, H≤0.015 Grade 7: Ti=Balance, Pd0.12-0.25, O≤0.25, Fe≤0.30, C≤0.08, N≤0.03, H≤0.015 Grade 9: Ti=Balance, Al2.5-3.5, V2.0-3.0, Fe≤0.25, O≤0.15, C≤0.08, N≤0.03, H≤0.015 Grade 12: Ti=Balance, Mo0.2-0.4, Ni0.6-0.9, O≤0.25, Fe≤0.30, C≤0.08, N≤0.03, H≤0.015 Note: Palladium addition in Gr.7 significantly improves crevice corrosion resistance in stagnant seawater |
| Mechanical Properties (Annealed State) | Grade 2: Tensile≥345MPa, Yield≥275MPa, Elongation≥20%, HB≤120
Grade 5: Tensile≥895MPa, Yield≥825MPa, Elongation≥10%, HB≤300 Grade 7: Tensile≥345MPa, Yield≥275MPa, Elongation≥20%, HB≤120 Grade 9: Tensile≥620MPa, Yield≥520MPa, Elongation≥15%, HB≤200 Grade 12: Tensile≥485MPa, Yield≥380MPa, Elongation≥18%, HB≤160 Max Service Temp: Gr.2/7: 315℃; Gr.9: 315℃; Gr.12: 425℃; Gr.5: 400℃ |
| Dimensional Tolerance | 1. Seamless Pipes/Tubes: Ø6-50mm ±0.1mm; Ø50-150mm ±0.2mm; Wall thickness ±0.05-0.1mm
2. Welded Pipes: Ø10-600mm ±0.15mm; Wall thickness ±0.08mm 3. Round Bars/Rods: Ø6-50mm ±0.1mm; Ø50-300mm ±0.2mm; Ø150-300mm ±0.3mm 4. U-Bend Tubes: Bend radius ±0.5mm; Ovality at bend ≤3% of OD 5. Length Tolerance: ±2mm (1-6m); custom lengths up to 12m available |
| Why These Materials Are Used in Marine & Offshore Industry | 1. Unmatched Seawater Corrosion Resistance:
– Immune to chloride-induced pitting, crevice corrosion and stress corrosion cracking in all marine zones – Corrosion rate <0.01mm/year in full immersion seawater, 1/10 of 316L stainless steel – Resists corrosion in splash zone, tidal zone and marine atmosphere – Eliminates the most common failure mode in offshore piping systems 2. Natural Biofouling Resistance: – Titanium oxide surface inhibits the attachment of barnacles, mussels and algae – Maintains clean heat transfer surfaces for 5+ years without cleaning – Eliminates the need for toxic antifouling coatings, complying with MARPOL regulations – Reduces fuel consumption by maintaining clean hull and piping surfaces 3. Superior Sour Service Performance: – NACE MR0175 certified for H₂S partial pressures up to 100 psi – Resists sulfide stress cracking (SSC) and hydrogen-induced cracking (HIC) – Ideal for offshore oil and gas production with medium sulfur content – Gr.7 provides additional protection in severe sour environments 4. Excellent Strength-to-Weight Ratio: – 40% lighter than steel while maintaining equivalent strength – Reduces structural weight, increasing payload capacity and stability – Critical for floating structures like FPSOs and offshore wind turbines – Lowers transportation and installation costs 5. Superior Cost-Effectiveness: – While initial cost is 3-5x higher than 316L, 10-20x longer service life reduces total cost of ownership by 60-80% – Eliminates costly annual maintenance and dry dock inspections – No need for protective coatings, reducing lifecycle costs |
| Application Scenarios and Corresponding Customers | 1. FPSOs and FLNGs:
– Applications: Seawater cooling systems, produced water handling, process piping, heat exchangers, fire water systems – Customers: ExxonMobil, Shell, BP, Chevron, TotalEnergies, CNOOC 2. Offshore Oil and Gas Platforms: – Applications: Wellhead components, Christmas trees, flowlines, manifolds, umbilicals, valve bodies – Customers: TechnipFMC, Schlumberger, Halliburton, Baker Hughes, Aker Solutions 3. Commercial and Naval Vessels: – Applications: Seawater intake piping, condenser tubes, heat exchangers, propeller shafts, rudder components – Customers: Maersk Line, MSC, CMA CGM, US Navy, Royal Navy 4. Offshore Wind Farms: – Applications: Foundation fasteners, turbine internals, transformer cooling systems, subsea cables, corrosion-resistant cladding – Customers: Ørsted, Vestas, Siemens Gamesa, Goldwind, Envision Energy 5. Deep-Sea Exploration Vessels: – Applications: ROV/AUV pressure hulls, sampling systems, subsea instrumentation, hydraulic systems – Customers: Woods Hole Oceanographic Institution, China Ocean Mineral Resources R&D Association |
| Customer Requirements in This Industry | 1. Performance Requirements:
– Seawater Corrosion Resistance: Must resist corrosion in all marine zones for 30+ years – Biofouling Resistance: Must maintain clean surfaces to ensure operational efficiency – Sour Service Resistance: Must meet NACE MR0175 requirements for H₂S – Fatigue Resistance: Must withstand cyclic loads from wave action and vibration – Weldability: Must be easily weldable while retaining corrosion resistance 2. Quality and Compliance Requirements: – Classification Society Certification: Must provide ABS, DNV, LR or equivalent certification – NACE Certification: Must provide NACE MR0175 certification for sour service – Full Traceability: Must provide complete traceability from titanium sponge to finished product – Third-Party Inspection: Must allow inspection by classification society surveyors – Material Certification: Must provide EN 10204 3.2 mill test reports 3. Manufacturing Requirements: – Precision Dimensional Tolerances: Must meet tight tolerances for proper fit and assembly – Surface Quality: Must have smooth, defect-free surfaces to prevent corrosion initiation – Internal Quality: Must be free from inclusions, porosity and segregation (100% UT/ET verified) – Consistent Quality: Must have uniform chemical composition and mechanical properties across all batches – Customization: Must produce custom sizes and shapes per customer drawings |
| Common Related Products in This Industry | 1. Titanium Seamless Pipes/Tubes: For seawater cooling, hydraulic lines and heat exchangers
2. Titanium Welded Pipes: Cost-effective solution for large-diameter process and seawater piping 3. Titanium U-Bend Tubes: Custom bent tubes for offshore heat exchangers and condensers 4. Titanium Round Bars/Rods: For valve stems, pump shafts, fasteners and machined components 5. Titanium Forgings: Custom forgings including flanges, valve bodies, pump casings and manifolds 6. Titanium Fasteners: Bolts, nuts, screws, studs and washers for offshore applications 7. Titanium Welding Materials: ERTi-2, ERTi-5, ERTi-7, ERTi-9 and ERTi-12 welding wires 8. Titanium Sheets and Plates: For tank liners, splash zone cladding and structural components 9. Titanium Machined Components: Precision-machined valves, fittings and pump parts 10. Custom Fabricated Assemblies: Pre-fabricated piping spools and heat exchanger bundles |
| Why Choose Us (Emily PIPE) | 1. 20+ Years of Marine & Offshore Titanium Expertise: We have supplied titanium products to over 200 offshore projects worldwide
2. Full NACE, API and Classification Society Certification: Our production line meets the strictest offshore industry standards 3. Complete Grade Range: We offer all five marine titanium grades in one place, simplifying your supply chain 4. Full-Process Quality Control: We implement 100% ultrasonic, eddy current and hydrostatic testing on all products 5. Advanced Manufacturing Capabilities: We use state-of-the-art equipment to produce precision titanium products 6. Strategic Inventory Management: We maintain 300+ tons of marine titanium inventory to support urgent offshore requirements 7. Global Logistics Network: We have experience delivering to remote offshore locations worldwide 8. One-Stop Solution: We provide complete solutions from raw material supply to pre-fabricated assemblies |
| Supplementary Industry Information | 1. Comprehensive Test Reports: Each batch comes with a full MTR including chemical analysis, mechanical properties and NDT results. Corrosion test reports available upon request
2. Full Material Traceability: Every product has a unique heat number and complete traceability documentation 3. Value-Added Processing: We offer precision cutting, CNC bending, welding, end processing and surface finishing services 4. Emergency Response Service: We provide 24/7 emergency support for offshore shutdown requirements 5. Market Growth: The global marine & offshore titanium market is projected to grow at a CAGR of over 7% through 2030, driven by offshore wind farm construction and deep-water oil & gas development 6. Sustainability Commitment: All our titanium products are manufactured using sustainable practices and are 100% recyclable |
| Packaging | 1. Plastic Caps: All tube/bar ends are protected with heavy-duty polyethylene caps with internal sealing rings to prevent contamination
2. Waterproof Film: Each product is individually wrapped in waterproof and anti-corrosion film 3. Bundle Packing: Products of the same size are bundled with steel straps and wooden spacers to prevent contact damage 4. Wooden Case: Bundles are packed in sturdy fumigated wooden cases with steel reinforcement for international shipping 5. Export Standard Packing: All packaging complies with international export standards and ISPM 15 regulations 6. Marking: Each package is clearly marked with product specifications, heat number, batch number, quantity and destination |
Looking for marine-grade titanium pipe, bar or forging? Send us your size, quantity and application requirements. We will provide a suitable solution and competitive quotation.