Titanium Grade 5 (Ti-6Al-4V) bar for heat exchanger applications is the most widely used alpha-beta titanium alloy, delivering 2-3x higher strength than commercially pure titanium with excellent high-temperature performance, fatigue resistance and corrosion resistance. Specially engineered for extreme high-temperature and high-pressure industrial heat transfer environments, it provides unmatched durability in aerospace, nuclear power, deep-sea offshore and high-temperature chemical processing applications where conventional materials cannot meet performance requirements.
As the industry-standard titanium alloy for mission-critical heat exchangers, Titanium Grade 5 bar maintains full mechanical properties up to 400℃, offering near-stainless steel strength at 60% lower weight. With over 20 years of production experience, Emily PIPE supplies precision-machined Titanium Grade 5 bars and fabricated heat exchanger components that meet the strictest international quality standards for the most demanding industrial and aerospace projects.
| Item | Details |
|---|---|
| Executive Standards | 1. International Material Standards: ASTM B348 (Titanium and Titanium Alloy Bars and Billets), ASTM B337 (Seamless Titanium Tubes), ASTM B338 (Welded Titanium Tubes), ASME SB348, ASME SB337, ASME SB338
2. Aerospace Specific Standards: SAE AMS 4928 (Bars), SAE AMS 4943 (Tubes), SAE AMS 4911 (Forgings) 3. Heat Exchanger Specific Standards: TEMA (Tubular Exchanger Manufacturers Association) Standards Class R, HEI (Heat Exchange Institute) Standards 4. Regional Standards: DIN 3.7164, ISO 5832-3, JIS H4600, GB/T 2965 5. Testing Standards: ASTM E8 (Tensile), ASTM E23 (Impact), ASTM E10 (Hardness), ASTM E243 (Eddy Current Testing), ASTM A450 (Hydrostatic Testing) 6. Quality Management Standards: ISO 9001, ISO 14001, PED 2014/68/EU, AS9100 (aerospace) |
| Material Grade | 1. Main Grade: Titanium Grade 5 (Ti-6Al-4V, Alpha-Beta Titanium Alloy, High-Temperature High-Strength Heat Exchanger Grade)
2. International Designations: UNS R56400, ASTM Grade 5, DIN 3.7164, ISO Ti6Al4V 3. Equivalent Grades: TC4 (China), Ti-6Al-4V (USA), TiAl6V4 (Germany), fully compatible with all global heat exchanger manufacturing standards 4. Special Grades: Annealed grade for general applications; solution treated and aged (STA) grade for maximum strength; ELI (Extra Low Interstitial) grade for high fracture toughness applications; seamless tube grade for high-pressure applications |
| Chemical Composition (Weight %) | 1. Titanium (Ti): Balance (base element)
2. Aluminum (Al): 5.5 – 6.75 (alpha phase stabilizer, increases strength and high-temperature performance) 3. Vanadium (V): 3.5 – 4.5 (beta phase stabilizer, improves formability and heat treatability) 4. Iron (Fe): ≤0.30 5. Oxygen (O): ≤0.20 (≤0.13 for ELI grade) 6. Carbon (C): ≤0.08 7. Nitrogen (N): ≤0.05 8. Hydrogen (H): ≤0.015 9. Other Elements (each): ≤0.10 10. Other Elements (total): ≤0.40 Note: The balanced alpha-beta microstructure provides the unique combination of high strength, good formability and excellent high-temperature performance |
| Mechanical Properties | Annealed State (Standard for General Applications):
1. Tensile Strength (Room Temperature): 895 – 1100 MPa 2. 0.2% Yield Strength (Room Temperature): ≥825 MPa 3. Elongation (δ5): ≥10% 4. Hardness (HRC): 30 – 36 5. Tensile Strength (300℃): ≥620 MPa 6. Tensile Strength (400℃): ≥480 MPa Solution Treated and Aged (STA) State (Maximum Strength): 1. Tensile Strength (Room Temperature): 965 – 1200 MPa 2. 0.2% Yield Strength (Room Temperature): ≥900 MPa 3. Elongation (δ5): ≥8% 4. Modulus of Elasticity: 114 GPa 5. Thermal Conductivity: 7.2 W/m·K (at 20℃) 6. Thermal Expansion Coefficient: 9.5 × 10⁻⁶ /℃ (20-100℃) 7. Melting Point: 1660℃ 8. Maximum Continuous Service Temperature: 400℃ in oxidizing environments |
| Dimensional Tolerance (Heat Exchanger Precision Grade) | 1. Hot Rolled Bars:
– Diameter 6mm – 50mm: ±0.3mm – Diameter 50mm – 150mm: ±0.5mm – Diameter 150mm – 300mm: ±0.8mm 2. Cold Drawn Bars: – Diameter 6mm – 30mm: ±0.03mm – Diameter 30mm – 80mm: ±0.05mm – Diameter 80mm – 150mm: ±0.10mm 3. Precision Ground Bars: – Diameter 6mm – 100mm: ±0.01mm 4. Rectangular/Square Bars: – Width/Thickness: ±0.05mm for dimensions ≤50mm; ±0.10mm for dimensions >50mm |
| Heat Exchanger Operating Conditions (Detailed) | 1. Temperature Range:
– Continuous service temperature: -253℃ to 400℃ (oxidizing environments) – Intermittent service temperature: up to 480℃ – Cryogenic service: Maintains excellent ductility down to -196℃, ideal for LNG and cryogenic heat exchangers 2. Pressure Range: – Design pressure: up to 300 bar (4350 psi) for seamless tubes (20% higher than Titanium Grade 4) – Design pressure: up to 180 bar (2610 psi) for welded tubes – Pressure vessel grade: Fully compliant with ASME Section VIII Div. 1 and Div. 2 for pressure-containing components 3. Compatible Media: – Seawater, brackish water and high-concentration brine solutions (all concentrations and temperatures) – Chloride-containing solutions (up to 250℃, no pitting or crevice corrosion) – Most organic acids (acetic, citric, formic, lactic) at all concentrations and temperatures – Inorganic acids (nitric, sulfuric <10%, hydrochloric <5%) at moderate temperatures – Oxidizing environments up to 400℃ – Liquefied natural gas (LNG), liquid nitrogen and other cryogenic fluids – High H₂S and CO₂ sour crude oil and produced water (up to 1500 ppm H₂S) 4. Industry-Specific Operating Conditions: – Aerospace: Operating temperature up to 400℃, pressure up to 200 bar, aircraft engine and environmental control systems – Nuclear Power Generation: Operating temperature up to 350℃, pressure up to 150 bar, high-purity reactor cooling water – Deep-Sea Offshore Oil & Gas: Operating temperature up to 220℃, pressure up to 250 bar, high H₂S/CO₂ produced water – High-Temperature Chemical Processing: Operating temperature up to 350℃, pressure up to 120 bar, highly corrosive chemical mixtures – LNG Processing: Operating temperature -162℃ to 300℃, pressure up to 120 bar, liquefied natural gas and natural gas liquids |
| Heat Exchanger Tube Bundle Types (Detailed) | 1. U-Bend Tubes:
– Description: Tubes bent into U-shape with uniform bend radius, allowing for thermal expansion without additional expansion joints. Grade 5’s exceptional high-temperature strength enables thinner wall sections while maintaining higher pressure ratings, resulting in significant weight reduction for aerospace and offshore applications – Bend Radius Options: 2×OD, 3×OD, 4×OD and custom radii (minimum 1.5×OD for annealed material) – Wall Thickness Range: 0.8mm – 10.0mm – Outer Diameter Range: 6mm – 90mm – Applications: High-temperature high-pressure shell and tube heat exchangers, aerospace engine heat exchangers, nuclear power plant heat exchangers, offshore platform condensers – Advantages: Excellent thermal expansion compensation, easy replacement, lower maintenance cost, 20% higher pressure rating than Grade 4, 60% weight reduction compared to steel – Quality Control: 100% visual and dimensional inspection after bending; no cracking, wall thinning >6% or ovality >2.5% allowed; 100% re-testing after bending; stress relief annealing available upon request 2. Condenser Tubes: – Description: Straight seamless tubes with precise dimensional tolerances for high-temperature high-pressure condenser applications. Grade 5 is the preferred material for aerospace condensers, nuclear power plant condensers and deep-sea offshore platform condensers – Outer Diameter Range: 10mm – 80mm (most common: 12.7mm, 19.05mm, 25.4mm, 31.75mm, 38.1mm) – Wall Thickness Range: 1.0mm – 6.0mm (most common: 1.65mm, 2.11mm, 2.77mm, 3.40mm, 4.06mm) – Length Range: Up to 18 meters – Applications: Aerospace environmental control system condensers, nuclear power plant condensers, offshore platform condensers, high-temperature petrochemical condensers – Advantages: High thermal efficiency, low fouling, long service life, 50% higher pressure rating than copper alloys – Quality Control: 100% eddy current and hydrostatic testing; strict control of ovality ≤2% and wall thickness variation ≤5% 3. Evaporator Tubes: – Description: Tubes with enhanced surface finishes or internal/external fins for improved heat transfer. Grade 5’s excellent strength allows for thinner fin walls and higher fin densities while maintaining structural integrity at high temperatures – Surface Options: Smooth, corrugated, low-fin (19-26 fins per inch), high-fin (26-36 fins per inch) – Fin Height: 0.5mm – 3.5mm – Applications: High-temperature falling film evaporators, forced circulation evaporators, aerospace refrigeration evaporators, desalination evaporators – Advantages: Increased heat transfer area by 2-7 times, higher efficiency, compact design, highest pressure rating of all titanium grades 4. Straight Tubes: – Description: Straight seamless tubes for fixed tube sheet heat exchangers. Grade 5’s higher strength allows for significantly thinner wall sections and lighter weight while maintaining pressure integrity at high temperatures – Length Range: Up to 12 meters (standard); up to 18 meters (custom) – Applications: High-temperature fixed tube sheet heat exchangers, coolers, heaters, process exchangers – Advantages: Lower cost, easier mechanical cleaning, 20% higher pressure rating than Grade 4, 60% weight reduction compared to steel 5. Coiled Tubes: – Description: Tubes coiled into helical or spiral shapes for compact high-temperature high-pressure heat exchangers. Grade 5’s excellent strength and formability allow for tight coil diameters and extremely high pressure ratings – Coil Diameter Range: 100mm – 10000mm – Applications: Compact aerospace heat exchangers, immersion heaters, waste heat recovery units, chemical reactors, LNG processing units – Advantages: High heat transfer efficiency (2-3 times higher than shell and tube), compact design, excellent thermal shock resistance, highest pressure rating of all titanium grades |
| Surface Quality (Detailed) | 1. Standard Surface Finishes:
– Pickled and Passivated (Standard): Acid pickled to remove scale and oxides, then passivated to form a protective 5-10nm thick titanium oxide layer. Surface roughness Ra ≤ 3.2μm. Suitable for most general-purpose high-temperature heat exchangers. – Mechanically Polished: Polished to surface roughness Ra ≤ 0.8μm using abrasive belts. Reduces fouling by 30-50% and improves cleanability. Ideal for food, pharmaceutical and high-purity applications. – Electropolished: Ultra-smooth surface with Ra ≤ 0.2μm achieved through electrochemical process. Maximum corrosion resistance and minimum fouling. Used in critical pharmaceutical, semiconductor and nuclear applications. – Sand Blasted: Uniform matte finish with Ra ≤ 6.3μm using aluminum oxide media. Improves coating adhesion for specialized applications. 2. Surface Defect Control Standards (High-Temperature High-Pressure Grade): – No cracks, laps, seams, inclusions, laminations or other harmful defects allowed on the entire surface – Minor scratches: depth ≤ 2.5% of nominal wall thickness, length ≤ 25mm, no more than 1 per 3 meters – Minor dents: depth ≤ 1.5% of nominal wall thickness, diameter ≤ 2.5mm, no more than 1 per 3 meters – Surface oxidation: no heavy oxidation, discoloration or scale allowed 3. Cleanliness Requirements (High-Temperature High-Pressure Grade): – All tubes are thoroughly cleaned inside and out using alkaline, ultrasonic and high-pressure water jet cleaning to remove oil, grease, dirt and machining residues – Residual oil content: ≤ 5mg/m² for standard grade; ≤ 1mg/m² for aerospace and nuclear grade – No foreign particles, debris or moisture allowed inside the tubes – Cleaned tubes are immediately capped and sealed with heavy-duty polyethylene caps with internal sealing rings to prevent contamination during transportation |
| Straightness (Detailed) | 1. Straightness Tolerance Standards (High-Temperature High-Pressure Grade):
– Standard Grade: ≤ 0.7mm per meter length – Precision Grade: ≤ 0.35mm per meter length – Ultra-Precision Grade (Aerospace/Nuclear): ≤ 0.12mm per meter length – Maximum total straightness deviation: ≤ 2mm for tubes up to 6 meters long; ≤ 3.5mm for tubes up to 12 meters long; ≤ 7mm for tubes up to 18 meters long 2. Measurement Method: – Straightness is measured using a laser straightness gauge with ±0.005mm accuracy along the entire length of the tube – Measurements are taken at 8 points 45° apart around the circumference to ensure accuracy – All measurements are performed at room temperature (20±5℃) to eliminate thermal expansion effects 3. Production Control Measures: – Multiple straightening operations during production: hot straightening after rolling, cold straightening after annealing – Final precision straightening using CNC multi-roll straightening machines with closed-loop feedback – 100% straightness inspection for all high-temperature high-pressure heat exchanger tubes – Tubes that do not meet straightness requirements are re-straightened or rejected |
| Eddy Current Testing (ET) (Detailed) | 1. Executive Standards:
– ASTM E243: Standard practice for electromagnetic (eddy current) examination of seamless and welded nonferrous tubes – ASTM E309: Standard practice for electromagnetic (eddy current) examination of steel tubular products – TEMA RCB-7.4: Eddy current testing requirements for heat exchanger tubes – SAE AMS 2631: Eddy current testing of titanium alloy tubes for aerospace applications 2. Testing Equipment: – Multi-frequency eddy current testing machines with 16-32 channels – Automatic data acquisition and recording system with 3D defect imaging capability – Calibration standards with artificial defects (longitudinal notches, transverse notches, flat-bottom holes) of specified sizes 3. Testing Parameters (High-Temperature High-Pressure Grade): – Testing frequency: 30kHz – 400kHz (selected based on tube diameter, wall thickness and material grade) – Inspection speed: 0.2m/s – 1.2m/s (slower than pure titanium grades for higher sensitivity) – Sensitivity: calibrated to detect defects as small as 2.5% of nominal wall thickness – Phase angle: adjusted to maximize sensitivity to surface and subsurface defects 4. Defect Detection Capability: – Longitudinal and circumferential cracks (depth ≥2.5% wall thickness) – Pitting and corrosion defects (diameter ≥0.25mm, depth ≥2.5% wall thickness) – Wall thickness variations (≥±5% of nominal) – Inclusions and laminations (area ≥0.4mm²) – Weld defects (for welded tubes: porosity, lack of fusion, cracks) 5. Acceptance Criteria: – No defects that produce a signal equal to or greater than the calibration standard signal are allowed – Minor signals below the calibration threshold are evaluated based on size, location and type – All defective tubes are marked with fluorescent paint and segregated for rework or rejection 6. Documentation: – 100% of tubes are tested and documented – Each shipment includes an eddy current test report with calibration records, test parameters, individual tube results and defect maps |
| Hydrostatic Testing (Detailed) | 1. Executive Standards:
– ASTM A450: Standard specification for general requirements for carbon, low-alloy, and alloy steel tubes – ASME B31.3: Process piping code – TEMA RCB-7.3: Hydrostatic testing requirements for heat exchanger tubes – SAE AMS 4943: Hydrostatic testing requirements for titanium alloy tubes for aerospace applications 2. Test Pressure Calculation (High-Temperature High-Pressure Grade): – Test pressure = 1.5 × design pressure – Minimum test pressure: 30 bar (435 psi) – Maximum test pressure: limited by the yield strength of the material (not exceeding 80% of yield strength) – For Grade 5 tubes, typical test pressures range from 50 bar to 220 bar depending on wall thickness and diameter 3. Test Procedure: – Tubes are filled with demineralized, deoxygenated water at ambient temperature (10-30℃) – Air is completely vented from the system to prevent false pressure readings – Pressure is gradually increased to the specified test pressure at a rate of ≤3 bar/s – Pressure is held for a minimum of 25 seconds per meter of tube length, but not less than 90 seconds – Tubes are visually inspected for leaks, bulging or deformation during the holding period 4. Acceptance Criteria: – No leakage through the tube wall or at the end closures – No permanent deformation, bulging or wrinkling of the tube – No pressure drop during the holding period 5. Post-Test Processing: – Tubes are thoroughly drained of water after testing – Tubes are dried with heated filtered compressed air (dew point ≤-70℃) to prevent water spots and corrosion – Tubes are immediately capped and sealed after drying 6. Documentation: – Each shipment includes a hydrostatic test report with test pressure, holding time, test medium, temperature and individual tube results |
| Fixed Length | 1. Standard Fixed Lengths:
– 1000mm, 2000mm, 3000mm, 4000mm, 5000mm, 6000mm – Most common for high-temperature high-pressure heat exchangers: 3000mm, 4000mm, 6000mm 2. Custom Lengths: – Any length from 100mm to 12000mm available upon request – Special lengths up to 18000mm available for aerospace and nuclear power plant heat exchangers 3. Length Tolerance: – Standard tolerance: ±2mm for lengths up to 6000mm – Precision tolerance: ±0.5mm for lengths up to 6000mm – Tolerance for lengths over 6000mm: ±3.5mm 4. Cutting Services: – Precision cutting to exact customer specifications using CNC band saws and circular saws – Cutting accuracy: ±0.25mm for lengths up to 6000mm – All cut ends are deburred and chamfered to remove sharp edges and burrs |
| Tube End Processing Standards (Detailed) | 1. Plain End (Standard):
– Description: Square cut end with no additional machining – End Squareness: ≤ 0.25mm for tubes up to 50mm OD; ≤0.6mm for tubes 50-100mm OD – Burr Removal: All burrs are removed from both inside and outside edges using chamfering tools – Applications: General-purpose high-temperature heat exchangers, welded tube sheet connections, butt welding 2. Chamfered End: – Description: Precision beveled end for welding or tube sheet expansion – Standard Chamfer Angles: 30°, 37.5°, 45°, 60° – Chamfer Depth: 1-8mm depending on wall thickness (typically 1/3 of wall thickness) – Root Face: 0.5-3.0mm as specified by customer – Applications: Welded tube sheet connections, butt welding, ultra-high pressure applications 3. Threaded End: – Description: Precision machined threads on the tube end for high-pressure connections – Thread Standards: NPT, BSPT, BSPP, metric threads (M6-M120), UN/UNF threads – Thread Tolerance: Class 2A for external threads; Class 2B for internal threads – Thread Length: 10-100mm depending on tube diameter and thread standard – Applications: High-pressure instrumentation connections, small-bore high-temperature heat exchangers, hydraulic systems 4. Flared End: – Description: Expanded end for high-pressure flared tube connections – Flare Angles: 37° (JIC), 45° (SAE), 90° – Flare Diameter: 1.2-1.8×OD depending on flare angle – Flare Thickness: ≥90% of original wall thickness – Applications: Ultra-high pressure hydraulic and pneumatic connections, aerospace refrigeration systems, instrumentation lines 5. Swaged End: – Description: Reduced or expanded diameter end for high-pressure fitting connections – Reduction/Expansion Ratio: Up to 30% of original diameter – Transition Length: 3-7× diameter change – Wall Thickness Variation: ≤±6% of nominal – Applications: Tube-to-tube connections, manifold assemblies, high-temperature heat exchanger headers 6. Tube End Protection: – All tube ends are protected with heavy-duty polyethylene caps with internal sealing rings during transportation – Metal caps with rubber seals available for large diameter tubes and international shipping – Protective caps are removed only at the time of installation to prevent contamination |
| Why Choose Us (Emily PIPE) | 1. 20+ Years of Titanium Alloy Heat Exchanger Expertise: We have been manufacturing and supplying titanium alloy heat exchanger components to global industrial and aerospace markets for over 20 years, with deep specialization in Grade 5 titanium applications for aerospace, nuclear and offshore industries.
2. Full-Process Quality Control: We implement a comprehensive quality control system from raw material inspection to finished product testing, including 100% eddy current testing and hydrostatic testing for all high-temperature high-pressure heat exchanger tubes. 3. Advanced Production Equipment: Our production facilities are equipped with state-of-the-art titanium alloy processing equipment, including precision cold rolling mills, CNC bending machines, and vacuum annealing furnaces specifically designed for Grade 5 titanium. 4. Complete Certification: Our products meet all major international standards and hold certifications including ASTM, ASME, AMS, PED, ISO 9001 and AS9100, ensuring compliance with the strictest global project requirements. 5. Advanced Customization Capability: We can produce custom sizes, lengths, tempers, surface finishes and tube end processing according to your drawings and technical specifications, including complex high-temperature U-bend and coiled tube bundles. 6. One-Stop Solution: We provide complete heat exchanger solutions from material selection and component manufacturing to assembly and pressure testing, reducing your supply chain complexity and costs. 7. Global Logistics Support: We have extensive experience in international shipping for aerospace and offshore projects and can arrange door-to-door delivery to your facility anywhere in the world with reliable lead times and specialized packaging. 8. Professional Technical Support: Our team of metallurgical engineers and heat exchanger specialists provides expert guidance on material selection, design optimization and troubleshooting for high-temperature high-pressure applications. |
| Inquiry Guidance Words | 1. If you need high-quality Titanium Grade 5 bars or high-temperature high-pressure heat exchanger tubes for your aerospace, nuclear, offshore or chemical processing project, please send us your specific requirements including dimensions (outer diameter, wall thickness, length), quantity, design pressure, operating temperature, required temper, surface finish, tube end processing and delivery date, and we will provide a detailed quotation within 12 hours.
2. For any questions about material properties, heat treatment options, corrosion resistance in specific high-temperature operating conditions, testing requirements or heat exchanger design, our titanium alloy specialists are available to assist you promptly. 3. Emily PIPE is your trusted partner for high-performance titanium alloy heat exchanger solutions. Contact us today to discuss how our Grade 5 titanium products can help you improve the efficiency, reliability and service life of your most critical heat exchange equipment. |
| Supplementary Industry Information | 1. Comprehensive Test Reports: Each batch comes with a full Material Test Report (MTR) including chemical composition analysis, mechanical properties testing, heat treatment records, eddy current test results, hydrostatic test results and ultrasonic test results for high-pressure applications.
2. Full Material Traceability: Every product comes with a unique heat number and complete traceability documentation from raw material ore to finished product, meeting the strictest industrial requirements for aerospace and nuclear applications. 3. Value-Added Processing: We offer comprehensive value-added services including precision cutting, CNC machining, bending, welding, tube end processing, heat treatment and assembly, providing ready-to-install heat exchanger components. 4. Specialized Packaging: We use protective packaging designed for high-temperature titanium alloy products, including plastic end caps with sealing rings, anti-corrosion wrapping and wooden crates with steel reinforcement to prevent damage during transportation. 5. Prototype Development Support: We support small batch prototype orders with fast turnaround times to help you accelerate product development and testing for new high-temperature projects. 6. Mass Production Capability: We have the capacity to produce thousands of tons of Titanium Grade 5 heat exchanger components per year to support large-scale aerospace, nuclear and offshore projects. 7. Market Growth: The global titanium alloy heat exchanger market is projected to grow at a CAGR of over 15% through 2030, driven by increasing demand from aerospace, nuclear power generation and deep-sea offshore oil & gas industries. 8. Performance Advantage: Titanium Grade 5 offers the best combination of strength, high-temperature performance and corrosion resistance of all commercially available titanium alloys, making it the material of choice for mission-critical heat exchanger applications. 9. Sustainability Advantage: Titanium is 100% recyclable and has a much longer service life than conventional materials, making it the most sustainable choice for heat exchanger applications with the lowest total lifecycle cost. |