Emily PIPE offers a complete range of shipbuilding-grade titanium alloys including Gr.2, Gr.5, Gr.7, Gr.9 and Gr.12, engineered to solve the most critical corrosion and weight challenges in modern ship manufacturing. Our titanium tubes and bars provide exceptional resistance to seawater corrosion, biofouling and cavitation erosion, delivering 15-20 times longer service life than stainless steel in marine environments.
As a leading China-based titanium alloy manufacturer with over 20 years of experience, we supply precision-manufactured titanium products fully certified by all major international classification societies. From luxury cruise ships and naval vessels to LNG carriers and deep-sea fishing boats, our shipbuilding-grade titanium alloys offer the optimal balance of performance and cost-effectiveness for global shipyard customers.
| Item | Details |
|---|---|
| Executive Standards | 1. International Material Standards: ASTM B337 (Seamless Pipe), ASTM B338 (Welded Pipe), ASTM B348 (Bar/Rod)
2. Classification Society Standards: ABS, DNV, LR, BV, CCS, RINA 3. Pressure Vessel Standards: ASME Section VIII Div.1 4. 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 shipbuilding grade, excellent corrosion resistance
2. Titanium Grade 5 (UNS R56400): Ti-6Al-4V, high-strength alloy for structural components and propulsion systems 3. Titanium Grade 7 (UNS R52400): Ti-0.2Pd, superior crevice corrosion resistance in stagnant seawater 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 low-flow seawater systems |
| 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 Ship Manufacturing | 1. Unmatched Seawater Corrosion Resistance:
– Immune to chloride-induced pitting, crevice corrosion and stress corrosion cracking in all marine zones – Corrosion rate <0.005mm/year in full immersion seawater, 1/20 of 316L stainless steel – Resists corrosion in splash zone, tidal zone and marine atmosphere – Eliminates the most common failure mode in ship 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 tin-based antifouling coatings – Reduces fuel consumption by 5-10% by maintaining clean hull and piping surfaces 3. Superior Lightweight Performance: – 40% lighter than steel while maintaining equivalent strength – Reduces ship structural weight, increasing payload capacity and stability – Lowers center of gravity, improving ship handling and safety – Reduces fuel consumption and greenhouse gas emissions 4. Exceptional Cavitation and Erosion Resistance: – Resists cavitation damage in propellers, pumps and high-velocity piping – Withstands erosion from sand and sediment in coastal waters – Service life 5-10 times longer than bronze and stainless steel in these applications 5. Superior Cost-Effectiveness: – While initial cost is 3-5x higher than 316L, 15-20x longer service life reduces total cost of ownership by 70-80% – Eliminates costly dry dock maintenance and component replacement – No need for protective coatings, reducing lifecycle costs |
| Application Scenarios and Corresponding Customers | 1. Luxury Cruise Ships and Superyachts:
– Applications: Seawater cooling systems, condenser tubes, heat exchangers, potable water systems, deck hardware – Customers: Carnival Corporation, Royal Caribbean Group, MSC Cruises, Lürssen, Fincantieri 2. Naval and Military Vessels: – Applications: Submarine hulls, propeller shafts, torpedo tubes, seawater piping, exhaust systems – Customers: US Navy, Royal Navy, Chinese People’s Liberation Army Navy, French Navy 3. LNG Carriers and Gas Tankers: – Applications: Cryogenic piping systems, cargo tank components, valve bodies, pump shafts, heat exchangers – Customers: QatarEnergy, Shell LNG, MOL, NYK Line, China LNG Shipping 4. Commercial Cargo Ships: – Applications: Seawater intake piping, condenser tubes, heat exchangers, ballast water treatment systems – Customers: Maersk Line, Mediterranean Shipping Company, CMA CGM, COSCO Shipping 5. Fishing and Research Vessels: – Applications: Seawater systems, winch components, fishing gear, scientific instrumentation – Customers: National Oceanic and Atmospheric Administration, 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 – Cavitation Resistance: Must withstand high-velocity fluid flow in pumps and propellers – 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 – Full Traceability: Must provide complete traceability from titanium sponge to finished product – Material Certification: Must provide EN 10204 3.2 mill test reports – Third-Party Inspection: Must allow inspection by classification society surveyors – Environmental Compliance: Must meet MARPOL and IMO environmental regulations 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 and pneumatic systems
2. Titanium Welded Pipes: Cost-effective solution for large-diameter process and seawater piping 3. Titanium U-Bend Tubes: Custom bent tubes for marine heat exchangers and condensers 4. Titanium Round Bars/Rods: For propeller shafts, rudder stocks, valve stems and fasteners 5. Titanium Forgings: Custom forgings including flanges, valve bodies, pump casings and propeller hubs 6. Titanium Fasteners: Bolts, nuts, screws, studs and washers for marine applications 7. Titanium Welding Materials: ERTi-2, ERTi-5, ERTi-7, ERTi-9 and ERTi-12 welding wires 8. Titanium Sheets and Plates: For hull 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 Shipbuilding Titanium Expertise: We have supplied titanium products to over 200 shipbuilding projects worldwide
2. Full Classification Society Certification: Our production line is certified by ABS, DNV, LR, BV and CCS 3. Complete Grade Range: We offer all five shipbuilding 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 shipbuilding titanium inventory to support urgent requirements 7. Global Shipbuilding Supply Chain Experience: We have extensive experience delivering to shipyards 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 ship repair and dry dock requirements 5. Market Growth: The global shipbuilding titanium market is projected to grow at a CAGR of over 6% through 2030, driven by LNG carrier construction and naval modernization 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 shipbuilding-grade titanium pipe, bar or forging? Send us your dimensions, application requirements and classification society standards. We will provide a customized solution and competitive quotation.