Titanium has a density of approximately 4.51 g/cm³ (4,510 kg/m³). This places it between aluminum and steel in terms of density, making titanium heavier than aluminum but significantly lighter than steel for the same volume.

This position gives titanium a useful role in weight-sensitive engineering applications where reducing mass is important.

Quick Answer: What Is the Density of Titanium?

Pure titanium has a density of approximately:

- 4.51 g/cm³

- 4,510 kg/m³

Titanium alloys may have slightly different densities depending on their composition.

Titanium Density by Grade

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Titanium density by grade including commercially pure titanium and Grade 5 Ti-6Al-4V

Titanium density varies slightly depending on the grade and alloy composition

Material	Approximate Density
Commercially Pure Titanium	~4.51 g/cm³
Ti-6Al-4V (Grade 5)	~4.43 g/cm³
Other Titanium Alloys	Usually around 4.4–4.8 g/cm³

For most engineering calculations, the density difference between titanium grades is minor compared with the difference between titanium, aluminum, and steel.

What Factors Affect Titanium Density?

Titanium density mainly changes because of alloy composition. Elements added to improve strength, corrosion resistance, or high-temperature performance can slightly change the final density.

Manufacturing condition and material purity may also influence measured density, but for most engineering applications, the difference between titanium grades is relatively small.

For titanium coil, density can also be used with thickness, width, and length to estimate material weight. HWHG supplies titanium coil for industrial applications, where this calculation can help with material planning, handling, and shipping estimates.

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HWHG’s intelligent warehouse for storing titanium coils.

Titanium Density Compared with Steel and Aluminum

The density difference is substantial enough to affect component weight at the same volume. Data published by the Japan Titanium Society places commercially pure titanium at about 4.51 g/cm³, compared with 7.85 g/cm³ for steel and 2.71 g/cm³ for aluminum.

Material	Typical Density	Weight Consideration
Aluminum	~2.70 g/cm³	Lowest density among the three, often selected when reducing weight is the main goal
Titanium	~4.51 g/cm³	Higher density than aluminum but lower density than steel
Steel	~7.85 g/cm³	Highest density among the three, resulting in heavier components at the same volume

This means a titanium component will generally weigh more than aluminum but less than steel when both parts have the same dimensions.

Density comparison of aluminum titanium and steel at the same volume

Is Titanium Considered a Lightweight Metal?

Titanium is not the lightest metal available. Aluminum and magnesium have lower densities.

However, lightweight engineering is not only about selecting the material with the lowest density. The material must also provide sufficient strength and durability for the application.

With a density of approximately 4.51 g/cm³, titanium can reduce component weight compared with steel while maintaining high mechanical performance.

Density vs. Strength-to-Weight Ratio

Strength-to-weight ratio compares a material’s strength with its weight. This measurement becomes important when reducing component weight affects efficiency or design requirements.

Titanium’s advantage comes from the combination of:

Lower density than steel
High strength-to-weight ratio
Excellent corrosion resistance
Good fatigue resistance

These properties make titanium suitable for components that need to remain lightweight while handling mechanical loads and corrosive environments.

Where Titanium's Lower Density Matters

Titanium is mainly selected for applications where component weight, strength, and corrosion resistance must be considered together.

Aerospace Components

Aircraft manufacturers need materials that can withstand high loads while keeping overall weight under control. Titanium is used in aerospace components where reducing weight while maintaining strength and corrosion resistance is required.

Medical Devices and Implants

Titanium is widely used for implants and medical devices because of its biocompatibility, corrosion resistance, and mechanical strength. Its relatively low density also helps keep implants lightweight compared with many other metals.

Corrosion-Resistant Industrial Equipment

Titanium is used in industrial components where corrosion resistance and weight reduction are both important. In corrosive environments, titanium can provide longer service life than many traditional metals while reducing component weight.

This is especially useful in chemical processing and marine environments where corrosion can increase maintenance requirements.

Frequently Asked Questions About Titanium Density

Is titanium lighter than steel?

Yes. Titanium has a density of about 4.51 g/cm³, compared with around 7.85 g/cm³ for steel. For the same volume, titanium is approximately 45% lighter than steel.

Is titanium lighter than aluminum?

No. Aluminum has a lower density of about 2.70 g/cm³, so it is lighter than titanium by volume. Titanium is selected when weight reduction needs to be combined with higher strength and durability.

How much does titanium weigh per cubic inch?

Pure titanium weighs approximately 0.163 lb per cubic inch (lb/in³). Ti-6Al-4V Grade 5 is slightly lighter at about 0.160 lb/in³ because its density is around 4.43 g/cm³.

Actual values may vary slightly with grade and material condition.

What is the density of Ti-6Al-4V?

Ti-6Al-4V (Grade 5 titanium) has a density of approximately 4.43 g/cm³, slightly lower than commercially pure titanium.

Titanium Density Explained: Weight Comparison with Steel and Aluminum

Titanium Hardness by Grade: Rockwell and Vickers Values Explained

Titanium Grades Comparison: CP Titanium vs Titanium Alloys for Industrial Applications

How Titanium Is Produced: From Mineral Ores to Sheets, Plates, and Coils

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