As the core pressure-bearing component of Titanium Heat Exchanger, the Titanium-Steel Composite Tube Sheet overcomes the limitations of traditional single-material designs. Combining the corrosion resistance of titanium with the strength and toughness of steel, it delivers a reliable solution for demanding operating conditions. This innovation addresses the industry challenges of high costs associated with pure titanium and the susceptibility of pure steel to corrosion.
I. Core Advantages: One Choice, Triple Value
Maximum Corrosion Resistance: The dense, stable titanium surface layer withstands harsh media like strong acids, alkalis, and high salt fog. It eliminates corrosion and leakage in chemical and marine environments, significantly extending equipment maintenance intervals.
Uncompromised Structural Strength: The carbon steel/low-alloy steel substrate ensures superior mechanical properties, reliably supporting heat exchanger tube bundle weight and withstanding high-pressure impacts to guarantee long-term equipment safety.
Optimal Cost-Effectiveness: Over 30% lower cost than pure Titanium Tube sheets; compared to pure steel tube sheets, it eliminates frequent replacement and maintenance, offering superior overall cost efficiency.
II. Key Performance: Hardcore Parameters, Powerful Protection
Composite Process: Utilizing explosion bonding or hot-rolled composite technology, titanium and steel achieve metallurgical bonding at the interface with a bond strength ≥200MPa, eliminating delamination risks.
Heat Transfer Efficiency: Extremely low thermal resistance at the composite interface, with heat transfer performance approaching that of solid metal materials, ensuring no compromise in equipment heat exchange efficiency.
Customizable Specifications: Supports diameters from 500-3000mm and thicknesses from 20-100mm, accommodating personalized requirements for tube hole counts and diameters to fit various heat exchanger models.
III. Application Scenarios: Comprehensive Coverage, Precise Matching
Chemical Industry: Suitable for acid-base reactors and solvent recovery heat exchangers, resisting chemical corrosion.
Case:Core Components for Million-Ton-Scale PTA Oxidation Reactors
Application Scenario: Heat exchange system for oxidation reactors in a petrochemical enterprise's 1.2 million-ton-per-year purified terephthalic acid (PTA) facility
Core Requirements: Equipment must withstand long-term exposure to highly corrosive media like acetic acid and bromides at 180°C while supporting hundreds of heat exchange tubes, imposing dual stringent demands on corrosion resistance and structural strength.
Solution: TA2/Q345R titanium-steel composite tube sheets (diameter 2800mm, thickness 80mm) with a 6mm titanium layer were selected. The metallurgical bond achieved via explosive bonding process reached a bond strength of 240MPa.
Application Results: The equipment operated continuously for 5 years without corrosion leaks. Seals at tube sheet-tube bundle connections remained intact. Compared to traditional stainless steel tube sheets, maintenance intervals extended from 1 year to over 5 years, reducing total lifecycle costs by 40%.
Marine Engineering: Suited for seawater desalination plants and ship cooling systems, withstanding high-salinity seawater erosion.
Case:Critical Component for Large-Scale Seawater Desalination Plant Evaporators
Application Scenario: Heat exchange system for seawater desalination equipment on a Middle Eastern FPSO (Floating Production Storage and Offloading) vessel
Core Requirements: Resist chloride ion corrosion from seawater in high salt spray and strong ocean current environments while withstanding dynamic load impacts from vessel motion.
Solution: Customized Gr2/S355JR titanium-steel composite tube sheets with 25mm tube holes, maintaining hole position accuracy within ±0.08mm for precise alignment with Titanium Alloy heat exchange tubes; The steel base employs high-strength low-alloy steel to enhance overall impact resistance.
Application Outcomes: The equipment has operated stably for 8 years in harsh marine conditions, with a titanium layer corrosion rate below 0.001mm/a. The tube sheet exhibits no deformation or leakage, reducing initial procurement costs by 35% compared to pure titanium tube sheets.
New Energy Sector: Employed in heat exchangers for lithium battery material production and photovoltaic silicon purification processes, handling high-temperature and highly corrosive conditions.
Nuclear Power / Pharmaceuticals: Meets stringent safety and cleanliness requirements, ensuring stable equipment operation.
IV. Quality Assurance: Rigorous Control Throughout Production
Raw Material Selection: Premium industrial pure titanium (TA2/TA10) for titanium layers; standard steels (Q345R, 16MnR) for steel bases. Material certificates provided for every batch.
Stringent Testing: Undergoes ultrasonic flaw detection, penetrant testing, and mechanical property testing before shipment to ensure defect-free performance.
After-Sales Support: Installation guidance is provided. Free replacement or refund is offered for quality issues within the warranty period, ensuring worry-free procurement.
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