Zirconium Sponge

• High-purity zirconium sponge
• Excellent corrosion resistance
• Low oxygen and impurity levels
• Low neutron absorption cross-section
• High chemical purity
• Excellent feedstock for vacuum melting
• Suitable for alloy manufacturing
• High-temperature stability
• Excellent mechanical properties after processing
• Uniform sponge particle size
• Ideal for aerospace and nuclear applications
• Available in multiple particle size ranges
• Bulk and custom packaging available
• Certificate of Analysis (COA) included

Property	Specification
Product Name	Zirconium Sponge
Material	Metallic Zirconium
Chemical Symbol	Zr
CAS Number	7440-67-7
Purity	99.2%, 99.5%, 99.7%, 99.9%
Grades	Commercial Grade, Nuclear Grade, Reactor Grade
Oxygen Content	Low Oxygen Grades Available
Hafnium Content	Standard or Low Hafnium (<100 ppm available upon request)
Particle Size	0–25 mm, 2–25 mm, 3–25 mm, Custom Sizes
Density	Approximately 6.51 g/cm³
Melting Point	Approximately 1,855°C
Manufacturing Process	Kroll Process
Packaging	Vacuum Sealed, Drums, Custom Packaging

• Commercial Grade Zirconium Sponge
• High Purity Zirconium Sponge
• Nuclear Grade Zirconium Sponge
• Reactor Grade Zirconium Sponge
• Low Hafnium Zirconium Sponge
• Aerospace Grade Zirconium Sponge
• Chemical Processing Grade Zirconium Sponge
• Vacuum Melting Grade Zirconium Sponge
• Alloy Production Grade Zirconium Sponge
• Research Grade Zirconium Sponge

1. What is Zirconium Sponge?

Zirconium Sponge is a porous metallic form of zirconium produced through the Kroll process. It serves as the primary raw material for manufacturing zirconium alloys, ingots, sheets, plates, tubes, bars, wires, and other zirconium mill products.

2. What purity levels are available?

REG Metals commonly supplies:

• 99.2%
• 99.5%
• 99.7%
• 99.9%

Custom purity specifications are available depending on your application.

3. What is the difference between commercial-grade and nuclear-grade zirconium sponge?

Commercial-grade zirconium is suitable for most industrial applications, while nuclear-grade zirconium sponge features extremely low hafnium content, often below 100 ppm, because hafnium absorbs neutrons and is undesirable in nuclear reactor components.

4. What particle sizes are available?

We offer standard particle size ranges including:

• 0–25 mm
• 2–25 mm
• 3–25 mm

Custom sizing and screened fractions are available upon request.

5. What industries use Zirconium Sponge?

Common industries include:

• Nuclear Energy
• Aerospace
• Defense
• Chemical Processing
• Medical
• Metallurgy
• Vacuum Melting
• Additive Manufacturing
• Research Laboratories
• Universities
• Government Laboratories

6. What is Zirconium Sponge used for?

Zirconium Sponge is commonly used to produce:

• Zirconium Ingots
• Zirconium Alloys
• Vacuum Melted Materials
• Aerospace Components
• Nuclear Components
• Chemical Processing Equipment
• Additive Manufacturing Feedstock
• Research Materials