Titanium Alloys

Introduction to Titanium Alloys

Hello. This is Dong-A Special Metals Co., your trusted source for specialty metal recycling and industry insights. With global demand for titanium rapidly rising, understanding titanium alloys is more important than ever.

Titanium alloys are materials made by combining titanium with elements like aluminum, vanadium, and nickel. These alloys are light, corrosion-resistant, and retain strength even under extreme temperatures. As industries seek stronger, lighter, and more durable materials, titanium alloys have become essential across aerospace, medical, and chemical sectors.


Types of Titanium Alloys

Titanium alloys fall into three major categories: Alpha, Beta, and Alpha+Beta. Each type offers unique benefits, making it suitable for specific industrial uses.

1. Alpha Alloys

Alpha-type titanium alloys contain elements like aluminum (Al), giving them a hexagonal close-packed (HCP) structure. These alloys:

  • Offer excellent high-temperature strength

  • Show strong resistance to oxidation

  • Are highly weldable

However, alpha alloys have lower room temperature strength than other types, limiting some applications.

2. Beta Alloys

Beta-type titanium alloys are stabilized with molybdenum (Mo), vanadium (V), chromium (Cr), and iron (Fe). These alloys have a body-centered cubic (BCC) structure and:

  • Offer excellent machinability

  • Gain higher strength after heat treatment

  • Are ideal for aircraft structures

3. Alpha+Beta Alloys

These combine the strengths of both alpha and beta alloys. Alpha+beta alloys are:

  • Strong and heat-stable

  • Easier to machine than beta alloys

  • Commonly used in biomaterials and sports equipment

The most widely used alloy is Ti-6Al-4V (Ti64). Known as Grade 5 (ASTM) and UNS R56400, this alloy is used in aerospace for its balance of strength, ductility, weldability, and formability.


Properties and Applications of Titanium Alloys

Ti-6Al-4V has the following key specifications:

  • Density: ~4420 kg/m³

  • Tensile strength: ~1000 MPa

  • Operating temperature: Up to 400°C

In comparison:

  • 316 Stainless Steel: Density 8000 kg/m³, strength 570 MPa

  • 6061 Aluminum Alloy: Density 2700 kg/m³, strength 310 MPa

Titanium alloys outperform in applications where lightweight and strength are critical. They’re widely used in aviation, marine, chemical plants, and space exploration.


Titanium in Medical and Industrial Use

Titanium’s biocompatibility makes it perfect for medical devices such as artificial joints and dental implants. Why?

1. Lightweight Strength: Reduces physical stress on the body

2. Non-Toxic: Titanium is stable in body fluids

3. Corrosion Resistant: Protected by a TiO₂ oxide layer

4. Elastic Modulus: Closely matches human bone


Dong-A Special Metals: Leading in Titanium Recycling

At Dong-A Special Metals, we actively purchase titanium scrap and recycle it into ingots, rods, and wire rods. Our dry-processing method reduces carbon emissions while securing valuable materials for reuse.

We specialize in alloy recycling technologies for titanium, nickel, and other rare metals. Our process supports the growing demand for sustainable materials and contributes to ESG and circular economy goals.

Contact us anytime for consultation or partnership. Let's lead the future of sustainable metallurgy together.



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Ltd. is selling titanium (titanium) sponge substitutes for research and alloying on its smart store in order to localize the material in Korea. We look forward to your interest and support. Thank you.


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