Titanium Alloy Grade 5 (Ti-6Al-4V), also known as TC4 titanium alloy, is the most widely used α-β dual-phase titanium alloy and is known as the "workhorse of titanium alloys". Its chemical composition is: about 90% titanium (Ti), 6% aluminum (Al), and 4% vanadium (V). Aluminum acts as an α-phase stabilizer to improve high-temperature strength, and vanadium acts as a β-phase stabilizer to improve toughness and processability. This composition design gives the alloy excellent comprehensive properties, making it a core position in aerospace, medical, industrial and other fields.

Product Parameters

Chemical Composition & Mechanical Properties

Core advantages and characteristics

1. High strength and lightweight: The specific strength (strength/density) far exceeds that of steel and aluminum alloy, and it is a key material for aviation lightweighting

2. Excellent corrosion resistance: A dense oxide film is formed on the surface, which performs better than stainless steel in seawater, strong acid and strong alkali environments

3. Biocompatibility: No rejection reaction with human tissue, can be implanted in the body for a long time

4. Wide temperature range stability: Good mechanical properties are maintained from -253℃ to 600℃

Main application areas

1. Aerospace field

Accounting for 70% of the global titanium alloy consumption, it is mainly used for:

Aircraft engine turbine blades, combustion chambers

Fuselage frames, landing gear and other load-bearing structures

Rocket propulsion system components

2. Medical device field

Artificial hip and knee prostheses (with a service life of more than 15 years)

Dental implants, bone fixation screws

Interventional medical devices such as heart stents

3. Industry and high-end manufacturing

Chemical high-pressure vessels, corrosion-resistant pipelines

Marine engineering deep-sea exploration equipment

High-performance automobile engine exhaust system

Processing technology features

Smelting process: Vacuum consumable arc melting (VAR) is used to ensure purity, usually 2-3 meltings are required

Hot processing: Forging and rolling in the range of 500-700℃ are recommended to improve material plasticity

Heat treatment:

Annealing: 730-850℃ to eliminate stress and improve processing performance

Quenching and aging: 955-1010℃ quenching + 480-650℃ aging, greatly improving strength

Advanced manufacturing: Suitable for selective laser melting (SLM) 3D printing to achieve near-net forming of complex components