Product Introduction
Our Titanium Bends (Titanium Elbows) are professional-grade high-performance piping fittings, manufactured in strict compliance with international core standards including ASTM B363 (global benchmark for titanium and titanium alloy welding fittings), ASME B16.9, ASME B16.28, NACE MR0175/ISO 15156, DIN 2605, JIS B2311, and GB/T 12459. As a direct manufacturer with 17+ years of titanium processing experience, we produce a full range of seamless and welded titanium bends using vacuum double-melted (VIM+VAR) raw materials, ensuring ultra-low impurity content, uniform microstructure, and stable mechanical properties.
Product Features
1. Full Global Standard Compliance, Perfect Piping Compatibility :
- Manufactured in strict accordance with ASME B16.9, ASME B16.28, ASTM B363, DIN, JIS, and EN standards, with 100% dimensional consistency with matching titanium pipes, flanges, and valves from global mainstream brands, ensuring seamless on-site installation.
- Full range of nominal sizes from NPS 1/2" (DN15) to NPS 48" (DN1200), with wall thickness schedules SCH5S, SCH10S, SCH20S, SCH40S, SCH80S, and custom wall thickness available.
- Standard bend radius 1D (SR), 1.5D (LR), 3D, 5D, and custom radius according to your piping layout requirements.
2. Full Titanium Grade System, Ultimate Corrosion Resistance :
- Full range of commercial titanium grades available: commercially pure titanium GR1, GR2, GR3, GR4; high-performance titanium alloys GR5 (Ti-6Al-4V), GR7 (Ti-0.2Pd), GR9 (Ti-3Al-2.5V), GR12 (Ti-0.3Mo-0.8Ni), and medical-grade GR23 (Ti-6Al-4V ELI).
- Natural excellent corrosion resistance: immune to seawater, chloride ions, oxidizing acids, organic acids, alkalis, and most corrosive media, with a service life of over 30 years in marine and chemical environments, solving the core pain point of frequent corrosion leakage and replacement of stainless steel and carbon steel bends.
- GR7 and GR12 grades are optimized for crevice corrosion and high-temperature corrosion, outperforming pure titanium in high-temperature high-chloride and reducing acid environments, fully compliant with NACE MR0175/ISO 15156 for sour oil and gas service.
3. Precision Dimensional Control, Smooth Fluid Flow & Zero-Leakage Performance :
- Strict dimensional tolerance control in full compliance with ASME B16.9 standards :
- Bend radius tolerance: ±0.5mm
-Outer diameter tolerance: ±0.1mm
-Wall thickness tolerance: ±0.05mm
-End bevel angle: 37.5°±1° (standard butt weld bevel)
-Out-of-roundness: ≤0.5% of outer diameter
- Advanced hot push and cold bending technology ensures uniform wall thickness distribution after bending, with wall thickness thinning rate ≤5% (far better than the industry standard 10%), avoiding local thinning and pressure resistance reduction.
- Smooth inner surface with roughness Ra ≤0.8μm, minimizing fluid flow resistance, pressure loss, and medium retention, ideal for high-purity and sanitary piping systems.
- Perfectly matched butt weld ends ensure 100% fit with titanium pipes, eliminating welding defects and pipeline leakage risks even under high pressure and alternating load conditions.
4. 100% Non-Destructive Testing, Zero-Defect Quality Assurance :
- Every titanium bend undergoes full-process quality inspection, with mandatory non-destructive testing (NDT) in strict accordance with ASTM standards:
- 100% Penetrant Testing (PT) for all products (ASTM E165), to detect surface micro-cracks, pores, and other defects.
- 100% Ultrasonic Testing (UT) for all bends with wall thickness ≥3mm (ASTM E237), to detect internal inclusions, cracks, and segregation.
- 100% Radiographic Testing (RT) for weld seams of welded bends (ASTM E1032), to ensure weld quality with zero defects.
- Batch mandatory testing includes hydrostatic pressure test (1.5 times the rated working pressure, no leakage or deformation allowed), chemical composition analysis (direct reading spectrometer + ICP), mechanical property testing (tensile strength, yield strength, hardness), and intergranular corrosion testing.
- Each bend is marked with a unique heat number and serial number, with a complete Material Test Report (MTR) and NDT test reports provided for every order, supporting third-party SGS/TUV/BV inspection and certification.
5. Superior Mechanical Performance & Structural Stability :
- Closed-die hot push forming and precision cold bending process, with strict control of forming temperature (850-950℃) and deformation rate, refining grains, eliminating casting defects, and improving material density. The forming ratio is strictly controlled to ensure the bend has excellent mechanical properties and fatigue resistance.
- Precision vacuum heat treatment process eliminates forming stress, optimizes microstructure, and ensures dimensional stability under high temperature and high pressure. The maximum working temperature can reach 550℃ (for titanium alloy grades), and the rated working pressure can reach 42MPa (Class 2500).
- Excellent weldability: The butt weld ends are designed with standard bevels, with excellent weldability matching titanium pipes. The weld joint strength can reach more than 90% of the base metal, without pores, cracks, and other welding defects.
6. Lightweight Design, Low Installation & Lifecycle Cost :
- The ultra-low density of titanium (4.51g/cm³, only 60% of stainless steel) greatly reduces the overall weight of the piping system, reduces the support load, and lowers the labor and equipment costs of hoisting and installation, especially for large-diameter and high-altitude piping projects.
- Excellent corrosion resistance eliminates the need for frequent replacement of bends due to corrosion, greatly reducing the long-term operation and maintenance costs of the piping system, with significant life cycle cost advantages over stainless steel and alloy bends.
Manufacturing Process & Quality Control System
Full Closed-Loop Manufacturing Process
- High-Purity Raw Material Control : Only vacuum double-melted (VIM+VAR) titanium and titanium alloy pipes/ingots compliant with ASTM B338 and ASTM B348 standards are used. Each batch of raw materials is subject to chemical composition analysis and mechanical property testing to prevent unqualified raw materials from entering production.
- Precision Forming Processing :
- Seamless Titanium Bends : Advanced hot push forming process for small and medium diameters, and cold bending process for large diameters, with no weld seams, uniform wall thickness distribution, and superior pressure resistance. The forming temperature and speed are strictly controlled to ensure uniform grain structure and no cracking.
- Welded Titanium Bends : Full-automatic TIG argon arc welding process with 100% argon protection on both sides of the weld, using matching grade titanium welding wire, uniform weld formation, no pores and crack defects. Post-weld solution heat treatment is performed to eliminate welding stress.
- Custom Bends : CNC bending machine for custom angles, radius, and non-standard bends according to customer drawings, with 3D modeling and prototype production before mass production.
- Precision Heat Treatment : Vacuum heat treatment furnace is used for annealing, solution treatment, and aging treatment. The temperature and holding time are precisely controlled to eliminate forming and welding stress, optimize the microstructure, and ensure the mechanical properties and dimensional stability of the bend, avoiding deformation and cracking during use.
- CNC Machining & End Preparation : CNC lathe is used to process the butt weld bevel, end face, and outer diameter, with strict dimensional tolerance control to ensure the bevel angle, end face flatness, and outer diameter accuracy. The inner and outer surfaces are polished to remove burrs and oxide scale, with a smooth surface finish.
- Surface Treatment :
- Standard surface treatment : Pickling + passivation treatment, forming a dense titanium oxide protective film to improve corrosion resistance, with no oil, oxide scale, or burrs on the surface.
- Optional surface treatment : Electropolishing (sanitary grade), mirror polishing, sandblasting, anodizing, PTFE coating, adapting to clean, high wear-resistant, strong corrosion and other special working conditions.
- Full-Process Non-Destructive Testing & Quality Inspection:
- Raw material incoming inspection: Chemical composition analysis, mechanical property testing, metallographic structure inspection.
- In-process inspection: Forming size inspection, heat treatment hardness testing, weld quality inspection.
- Finished product 100% non-destructive testing: Penetrant Testing (PT), Ultrasonic Testing (UT), Radiographic Testing (RT) for welds.
- Batch sampling inspection: Hydrostatic pressure test, intergranular corrosion test, salt spray corrosion test.
- Each batch of products is issued with a complete Material Test Report (MTR), including chemical composition, mechanical properties, NDT results, heat treatment records, to achieve full traceability of the whole process.
Application Scenarios
- Chemical & Petrochemical Industry : Acid and alkali medium transmission piping, chlor-alkali chemical equipment, hydrometallurgy pipelines, flue gas desulfurization (FGD) systems, pesticide/fertilizer production lines, and organic solvent transmission systems. Our titanium bends are immune to corrosion from sulfuric acid, hydrochloric acid, nitric acid, sodium hydroxide, and chloride ions, solving the core pain point of frequent corrosion leakage and shutdown maintenance of stainless steel and carbon steel piping systems.
- Offshore Oil & Gas & Marine Engineering : Offshore oil and gas platform gathering and transportation pipelines, subsea production systems, ship ballast water systems, seawater desalination equipment, coastal power plant circulating water pipelines, and marine observation equipment piping. Excellent seawater corrosion resistance and marine biofouling resistance, with a service life of more than 30 years in marine environments without frequent anti-corrosion maintenance, fully compliant with NACE MR0175/ISO 15156 for sour service.
- Pharmaceutical & Food Processing Industry : Pharmaceutical clean piping systems, biopharmaceutical fermentation equipment, food and beverage production and transmission pipelines, drinking water/pure water equipment, and brewery piping systems. GR2/GR1 pure titanium is non-toxic, non-precipitating, compliant with FDA and EU food contact standards, and has excellent corrosion resistance to acid and alkali cleaning media, meeting GMP clean production requirements. Electropolished sanitary grade bends have a smooth inner surface with no medium retention, ideal for high-purity pharmaceutical applications.
- New Energy & Semiconductor Industry : Lithium battery electrolyte transmission pipelines, hydrogen energy storage and transportation systems, photovoltaic equipment piping, semiconductor wafer cleaning equipment pipelines, and electronic chemical transmission systems. Excellent corrosion resistance to high-purity chemicals, no metal ion precipitation, no pollution to the medium, meeting the transmission requirements of high-purity electronic grade media.
- Aerospace & Defense Industry : Aircraft hydraulic piping systems, engine fuel transmission pipelines, military equipment special piping systems, satellite/spacecraft pipeline connections. GR5/GR9 titanium alloy has an ultra-high strength-to-weight ratio, high temperature resistance and fatigue resistance, which greatly reduces the weight of equipment and improves load capacity, fully compliant with AMS aerospace material standards.
- Water Treatment & Environmental Protection : Seawater desalination plants, industrial wastewater treatment systems, brine treatment equipment, and municipal water supply piping. Immune to chloride ion corrosion and microbial corrosion, with a long service life and low maintenance costs, it is the ideal material for desalination and wastewater treatment piping systems.
FAQ
Q: What international standards do your Titanium Bends comply with?
A: Our Titanium Bends are manufactured in strict compliance with global mainstream standards, including ASTM B363 (Standard Specification for Wrought Titanium and Titanium Alloy Welding Fittings, the core material standard for titanium bends), ASME B16.9 (Factory-Made Wrought Buttwelding Fittings), ASME B16.28 (Wrought Steel Buttwelding Short Radius Elbows and Returns), NACE MR0175/ISO 15156 (Sour Oil and Gas Service Standard), DIN 2605, JIS B2311, and EN 10253. We also support custom production according to your drawings and non-standard requirements, ensuring 100% compatibility with your piping system.
Q: Which titanium grade should I choose for my application?
A: The grade selection depends on your working medium, temperature, pressure, and corrosion environment:
- For general seawater, water treatment, food/pharmaceutical applications: GR2 is the most cost-effective and widely used choice, with excellent general corrosion resistance and good weldability.
- For harsh reducing acid, high-temperature high-chloride environments with high risk of crevice corrosion: GR7 is the optimal choice, with palladium addition to significantly improve corrosion resistance.
- For high-pressure, high-temperature, and high-load structural piping: GR5 (Ti-6Al-4V) high-strength titanium alloy is recommended.
- For high-temperature geothermal and moderate corrosion applications: GR12 offers excellent performance at a lower cost than GR7.
- For pharmaceutical and biopharmaceutical clean piping: GR2 or medical-grade GR23 is recommended, compliant with FDA and GMP requirements.Our technical team can provide professional grade selection guidance based on your specific working conditions.
Q: What non-destructive testing (NDT) do you perform on the Titanium Bends? Can you provide test reports?
A: We implement 100% full inspection for every Titanium Bend, with mandatory NDT items including:
- Penetrant Testing (PT) : 100% PT for all bends in accordance with ASTM E165, to detect surface cracks, pores, and other micro defects.
- Ultrasonic Testing (UT) : 100% UT for all bends with wall thickness ≥3mm in accordance with ASTM E237, to detect internal inclusions, cracks, and segregation.
- Radiographic Testing (RT) : 100% RT for weld seams of welded bends in accordance with ASTM E1032, to ensure zero weld defects.
- Hydrostatic Pressure Test : 1.5 times the rated working pressure hydrostatic test for each batch, no leakage or deformation allowed.Every order will be provided with a complete Material Test Report (MTR) and NDT test reports, and third-party SGS/TUV/BV certification is also available upon request.
Q: What is your minimum order quantity (MOQ) for Titanium Bends? Do you provide samples?
A: We have a very flexible MOQ to meet your different needs:
- For standard in-stock specifications (GR2, NPS 1/2" to 12", SCH10S/SCH40S, 90° LR bends): 1 piece minimum order, supporting sample orders and small batch trial use.
- For custom sizes, non-standard grades, and large-diameter bends: the MOQ is 5 pieces, which can be negotiated and reduced for special cases.
- Free samples: We can provide free sample pieces of standard specifications for you to test dimensional fit, material properties, and welding performance; you only need to cover the international shipping cost. Custom samples can be provided at cost price.
Q: Can you provide custom Titanium Bends according to our drawings?
A: Yes, we provide full custom manufacturing services to meet your personalized needs:
- Custom dimensions: non-standard nominal size, wall thickness, bend angle, bend radius, and end preparation.
- Custom material: special titanium alloy grades, composite titanium materials, and titanium clad bends.
- Custom processing: special bevel form, electropolished sanitary finish, threaded ends, and other special machining requirements according to your drawings.Our engineering team will review your drawings and provide professional optimization suggestions, and we can provide 3D modeling and prototype production before mass production to ensure the product fully meets your requirements.
Q: What is the lead time for standard and custom orders?
A: The delivery time is distinguished according to the order type:
- Standard in-stock specifications (GR2, common sizes): delivery within 3-7 days after payment confirmation.
- Custom size/non-standard grade products: delivery within 10-15 days.
- Large-diameter custom bends, bulk orders (≥100 pieces), and special certified products: delivery within 15-25 days.
- Urgent orders: We have a dedicated expedited production line, which can shorten the delivery time to 2-5 days for small batch urgent orders to meet your project schedule.
Q: Are your Titanium Bends weldable? What welding process do you recommend?
A: Yes, all our Titanium Bends have excellent weldability, as we use vacuum double-melted raw materials with ultra-low impurity content and uniform microstructure. The recommended welding process is GTAW (TIG) Welding (Tungsten Inert Gas Welding) with high-purity argon shielding (purity ≥99.999%) on both the front and back of the weld, using matching grade titanium welding wire (e.g., ERTi-2 for GR2 bends, ERTi-5 for GR5 bends). This ensures that the weld joint strength reaches more than 90% of the base metal, without pores, cracks, or oxidation defects. We can provide detailed welding parameter guidelines and matching welding wire recommendations with your order, as well as welding technical support.
Q: What is the difference between Titanium Bends and Stainless Steel Bends?
A: Our Titanium Bends have irreplaceable core advantages over stainless steel (304/316L) bends:
- Superior Corrosion Resistance : Titanium is immune to chloride ion corrosion, seawater corrosion, and most acid and alkali media, while 316L stainless steel is prone to pitting and crevice corrosion in chloride and high-temperature environments. The service life of titanium bends is 5-10 times that of stainless steel bends in harsh corrosive environments.
- Ultra-Lightweight : The density of titanium is only 4.51g/cm³, 60% of stainless steel, which greatly reduces the weight of the piping system, lowers installation labor costs, and reduces the load on piping supports.
- Better Temperature Stability : Titanium bends can maintain stable mechanical properties at -253℃ to 550℃, while stainless steel has reduced corrosion resistance and strength at high temperatures above 300℃.
- Excellent Biocompatibility : Titanium is non-toxic and non-precipitating, compliant with FDA food contact standards, making it ideal for pharmaceutical, food, and biopharmaceutical applications where stainless steel may precipitate heavy metal ions.While the initial procurement cost of titanium bends is higher, their long service life and low maintenance costs result in a significantly lower total lifecycle cost than stainless steel bends in corrosive environments.
Q: Do your Titanium Bends comply with NACE MR0175 for sour oil and gas service?
A: Yes, our GR2, GR7, GR12, and GR5 titanium bends are fully compliant with NACE MR0175/ISO 15156 (Petroleum and Natural Gas Industries - Materials for Use in H2S-Containing Environments in Oil and Gas Production). Our titanium bends have excellent resistance to sulfide stress corrosion cracking (SSCC) and hydrogen-induced cracking (HIC), making them ideal for sour oil and gas production, offshore platforms, and high-sulfur natural gas transmission pipelines. We can provide NACE compliance test reports and certification upon request.
Q: What payment terms do you accept for international orders?
A: We accept standard international trade payment terms:
- T/T (Telegraphic Transfer): 30% deposit in advance, 70% balance before shipment.
- Irrevocable L/C at sight for bulk orders over 50,000 USD.
- Alibaba Trade Assurance (100% payment protection for buyers).
- For long-term cooperative partners with good credit, we can offer more flexible payment terms.
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| Item | Core Application Scenarios | Nominal Size Range | Wall Thickness Schedule | Pressure Rating Range | Standard Execution |
|---|---|---|---|---|---|
| 90° Long Radius (LR) Bend (1.5D) | General industrial piping, chemical processing, water treatment, most widely used type | NPS 1/2" ~ 48" (DN15 ~ DN1200) | SCH5S, SCH10S, SCH20S, SCH40S, SCH80S, Custom | Class 150 ~ Class 2500 (PN6 ~ PN420) | ASME B16.9, ASTM B363 |
| 90° Short Radius (SR) Bend (1D) | Compact piping layouts, limited installation space | NPS 1/2" ~ 24" (DN15 ~ DN600) | SCH10S, SCH20S, SCH40S, SCH80S | Class 150 ~ Class 1500 (PN6 ~ PN250) | ASME B16.9, ASTM B363 |
| 45° Long Radius (LR) Bend (1.5D) | Piping direction change with low pressure loss, fluid transfer systems | NPS 1/2" ~ 48" (DN15 ~ DN1200) | SCH5S, SCH10S, SCH20S, SCH40S, SCH80S | Class 150 ~ Class 2500 (PN6 ~ PN420) | ASME B16.9, ASTM B363 |
| 180° U-Bend (1.5D/1D) | Piping loop systems, heat exchangers, return lines | NPS 1/2" ~ 24" (DN15 ~ DN600) | SCH10S, SCH20S, SCH40S | Class 150 ~ Class 1500 (PN6 ~ PN250) | ASME B16.9, ASTM B363 |
| 3D/5D Long Sweep Bend | Low pressure loss piping, slurry transfer, high-velocity fluid systems | NPS 2" ~ 48" (DN50 ~ DN1200) | SCH10S, SCH20S, SCH40S | Class 150 ~ Class 900 (PN6 ~ PN150) | ASME B16.49, ASTM B363 |
| Reducing Bend | Piping systems with diameter change, flow rate adjustment | NPS 1"x1/2" ~ 24"x20" (DN25x15 ~ DN600x500) | SCH10S, SCH20S, SCH40S | Class 150 ~ Class 900 (PN6 ~ PN150) | ASME B16.9, ASTM B363 |
| Custom Non-Standard Bend | Special engineering projects, custom angles, radius, and dimensions | Custom size according to drawings | Custom wall thickness | Custom pressure rating | Custom standard per customer requirements |







