---
title: "Titanium — density, melting point and properties"
description: "Titanium has a density of 4,506 kg/m³. Melting point, strength, conductivity, what it is used for, and whether it floats, rusts or is magnetic."
url: https://atoneplace.net/material/titanium/
site: "At One Place"
---

# Titanium

**Density of titanium: 4,506 kg/m³**

4.51 g/cm³ · 281.3 lb/ft³

Commercially pure titanium is not as strong as good steel — the 240-550 MPa span covers grades 1 to 4 — but at 4506 kg/m³ it weighs 43% less, so per kilogram it wins comfortably, and the alloy Ti-6Al-4V beats most steels outright. Its stiffness is only 116 GPa against steel's 200, so a titanium part of the same shape flexes almost twice as much; frames are built with fatter tubes to compensate. It is genuinely inert in seawater and in the body, which is what implants and desalination plants are buying.

## Properties

- **Density:** 4,506 kg/m³ — 4.51 g/cm³
- **Melting point:** 1,668 °C
- **Tensile strength:** 240–550 MPa
- **Young's modulus:** 116 GPa
- **Thermal conductivity:** 21.9 W/(m·K)
- **Thermal expansion:** 8.6 µm/(m·K)
- **Floats in water:** No
- **Magnetic:** No

## What it is used for

- Aircraft structure and engine parts
- Hip and dental implants
- Marine and chemical plant heat exchangers
- High-end bicycle frames and camping cookware

## How it compares

*Water is 1,000 kg/m³. Anything with a shorter bar than water floats in it.*

- air: 1.2 kg/m³
- expanded polystyrene foam: 20 kg/m³
- rigid polyurethane foam: 40 kg/m³
- Water — the float line: 1,000 kg/m³
- titanium: 4,506 kg/m³
- tungsten: 19,250 kg/m³
- gold: 19,300 kg/m³
- platinum: 21,450 kg/m³

*Water is 1,000 kg/m³. Anything below that floats.*

| Material | Density | Relative to water |
| --- | --- | --- |
| rigid polyurethane foam | 40 kg/m³ | 0.04× |
| expanded polystyrene foam | 20 kg/m³ | 0.02× |
| air | 1.2 kg/m³ | 0.00× |
| titanium ← | 4,506 kg/m³ | 4.51× |
| platinum | 21,450 kg/m³ | 21.45× |
| gold | 19,300 kg/m³ | 19.30× |
| tungsten | 19,250 kg/m³ | 19.25× |

## Does it rust?

Titanium does not rust — rust is iron oxide specifically — but it does corrode, forming its own oxide or salts over time.

## Is it magnetic?

Titanium is not ferromagnetic. It is often assumed to be because it is a metal, but most metals are not — only iron, nickel, cobalt and a few alloys are attracted to an ordinary magnet.

## Common questions

### What is the density of titanium?

4,506 kg/m³, or 4.51 g/cm³.

### Does titanium float?

No. At 4,506 kg/m³ it is denser than water.

### Is titanium magnetic?

Titanium is not ferromagnetic. It is often assumed to be because it is a metal, but most metals are not — only iron, nickel, cobalt and a few alloys are attracted to an ordinary magnet.

## Related pages

- [Does titanium float?](https://atoneplace.net/does-it-float/titanium/)
- [Aluminum](https://atoneplace.net/material/aluminum/)
- [Copper](https://atoneplace.net/material/copper/)
- [Gold](https://atoneplace.net/material/gold/)
- [Iron](https://atoneplace.net/material/iron/)
- [Lead](https://atoneplace.net/material/lead/)
- [Tungsten](https://atoneplace.net/material/tungsten/)
- [Silver](https://atoneplace.net/material/silver/)
- [Mercury](https://atoneplace.net/material/mercury/)

## Sources

- Wikidata — Wikimedia Foundation (https://www.wikidata.org/) [CC0 1.0]