Product Overview
Ti-3Al-2.5V titanium alloy springs are made from Ti-3Al-2.5V alloy material, combining high strength, light weight, and excellent corrosion resistance, making them suitable for high-end applications with stringent performance requirements. Its unique phase structure is optimized through precise heat treatment processes, providing stable mechanical properties and fatigue resistance, making it an ideal choice for aerospace, medical implants, marine engineering, and other fields.
Core Performance Advantages
High specific strength and lightweight of Ti-3Al-2.5V titanium alloy springs: tensile strength reaches 830–900 MPa, density is approximately 4.4–4.5 g/cm³, only 60% of steel, significantly reducing component weight without compromising load-bearing capacity.
Excellent fatigue resistance: fatigue limit can reach 50%–60% of tensile strength, much higher than ordinary steel, suitable for high-frequency vibration environments such as aircraft engine valve systems.
Outstanding corrosion resistance: highly resistant to seawater, chloride ions, and body fluids, requiring no additional anti-corrosion treatment, ensuring long-term service reliability.
Good formability and weldability: excellent hot and cold working properties, supporting precise manufacturing of complex structures such as flexible elements in hydraulic pipelines.
Typical Application Scenarios
Aerospace: Landing gear shock absorber springs, engine valve springs, resistant to high-temperature environments of 315–450°C.
Medical Field: Vascular stents, orthopedic implant springs, compliant with ISO 5832-3 biocompatibility certification, no magnetic interference with MRI equipment.
Marine Engineering: Deep-sea exploration equipment connectors, springs for ships, long-term resistance to seawater corrosion.
Automotive Industry: Suspension springs, valve springs, shock absorber springs for motorcycles.
Process and Quality Control
Heat Treatment Optimization: Solution treatment (800–850°C) combined with aging treatment (550–600°C) refines the α and β phase structures, enhances strength, and reduces residual stress.
Manufacturing Precision: Combining cold rolling (wire diameter ≤6 mm) and hot rolling (wire diameter >8 mm) with mold compensation design ensures dimensional stability.
Strict Quality Inspection: Following ASTM E8 tensile test standards, each batch undergoes salt spray corrosion fatigue testing to ensure performance consistency.
Ti-3Al-2.5V titanium alloy springs have better cold formability than Gr5, more controllable springback, and are suitable for fine wires and complex structured springs.
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