Key Features

• High-purity tantalum up to 99.99%
• Excellent resistance to many corrosive environments
• Excellent high-temperature capability
• Low vapor pressure
• Seamless and welded constructions available
• Large dimensional range
• Custom wall thickness
• Custom shapes and dimensions
• Optional lids
• Drawing-based manufacturing
• Suitable for laboratory and industrial applications

Tantalum Crucible Applications

Tantalum crucibles are used where high temperatures, aggressive processing environments, material purity, or refractory-metal performance are important.

Typical applications include:

• Sapphire crystal growth
• Rare-earth metal melting
• High-temperature melting
• Evaporation processes
• Sintering
• Crystal growth
• Vacuum furnace applications
• Chemical processing
• Semiconductor manufacturing
• Materials research and development
• High-temperature laboratory processes

Tantalum Crucibles for Sapphire Growth

Tantalum crucibles and other tantalum furnace components can be used in sapphire crystal growth systems because of tantalum's refractory characteristics and performance under high-temperature conditions.

In addition to crucibles, Heeger Materials can supply related tantalum components such as heaters, heat shields, sheets, supports, and other custom-fabricated parts according to customer drawings.

Tantalum Crucibles for Rare-Earth Melting

Tantalum crucibles are also used for melting and processing selected rare-earth and specialty materials where high-temperature stability and compatibility with the process environment are required.

The appropriate tantalum purity, crucible dimensions, wall thickness, and operating conditions should be evaluated according to the specific material and process.

Custom Tantalum Crucible Manufacturing

Many tantalum crucibles are application-specific rather than standard off-the-shelf components.

Heeger Materials can review custom requirements including:

• Outer diameter
• Inner diameter
• Height
• Wall thickness
• Bottom thickness
• Crucible shape
• Lid design
• Flange or edge geometry
• Seamless or welded construction
• Material purity
• Dimensional tolerances
• Surface requirements
• Quantity

For custom crucibles, attaching a technical drawing is strongly recommended.

How to Specify a Tantalum Crucible

To receive an accurate quotation, please provide the following information:

Purity: Required tantalum purity

Outer Diameter / Inner Diameter: Required crucible diameter

Height: Overall height

Wall Thickness: Required sidewall thickness

Bottom Thickness: If different from the wall thickness

Construction: Seamless or welded, if specified

Lid: Required or not required

Operating Temperature: Expected process temperature

Atmosphere: Vacuum, inert gas, or other operating atmosphere

Processed Material: Material that will be melted, evaporated, sintered, or contained

Quantity: Required number of crucibles

Drawing: Attach a technical drawing whenever available

Providing operating temperature, atmosphere, and processed material helps our team review the requested crucible configuration more effectively.

Packaging

Tantalum crucibles are carefully packed to protect their geometry and surfaces during transportation.

Depending on crucible size and quantity, packaging may include protective wrapping, cartons, reinforced wooden cases, and cushioning materials. Special packaging requirements can be reviewed upon request.

Why Choose Heeger Materials for Tantalum Crucibles?

Heeger Materials supplies tantalum products and custom refractory-metal components for research and industrial applications.

Our tantalum crucible capabilities include:

• High-purity tantalum
• Seamless and welded crucibles
• Diameters up to 500 mm
• Heights up to 600 mm
• Custom wall thicknesses
• Custom shapes and lids
• Drawing-based manufacturing
• Related tantalum furnace components
• Prototype and production quantities
• Technical documentation upon request
• Worldwide supply

Tantalum Crucible FAQ

What sizes of tantalum crucibles are available?

Heeger Materials supplies tantalum crucibles with outer diameters from 10 to 500 mm and heights from 10 to 600 mm. Custom dimensions can be reviewed according to your drawing and application requirements.

What is the difference between seamless and welded tantalum crucibles?

Seamless tantalum crucibles are manufactured without a longitudinal welded joint, while welded crucibles are fabricated from flat tantalum material and joined through a controlled welding process. The appropriate construction depends on dimensions, operating conditions, and application requirements.

Can you manufacture a tantalum crucible from my drawing?

Yes. Custom tantalum crucibles can be manufactured according to customer drawings. Please specify the diameter, height, wall thickness, bottom thickness, tolerances, purity, lid requirements, and quantity.

Are tantalum crucible lids available?

Yes. Custom tantalum lids and related components can be supplied according to crucible dimensions and application requirements.

What information is required for a tantalum crucible quotation?

Please provide the required purity, diameter, height, wall thickness, bottom thickness, quantity, operating temperature, atmosphere, processed material, and any special dimensional or surface requirements. Attaching a technical drawing is recommended.