Kroll Process Titanium Sponge
Standard titanium sponge produced by the magnesium reduction Kroll process, typically Grade 1-2 purity. Specifically provided for in HTS 8108.20.0010 as unwrought titanium sponge, serving as feedstock for melting and alloying operations.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If produced by Hunter process or finer particle size
Different production methods yielding powder-like sponge use the powders subheading.
If crude sponge directly from ore processing
Unrefined titanium-bearing materials from mineral processing remain in Chapter 26.
If alloyed sponge with rare earths or other base metals
Chapter 81 alloy definitions exclude sponge with <99% titanium from pure titanium heading.
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Import Tips & Compliance
• Provide Kroll process documentation proving sponge morphology (not powder); photos of chunk structure help
• Account for 30-40% yield loss in valuation; customs often undervalues sponge shipments
• Hazardous classification possible due to pyrophoric dust—require proper MSDS
Related Products under HTS 8108.20.00.10
Titanium Sponge Grade 0
High-purity titanium sponge Grade 0, produced via the Kroll process, contains at least 99.7% titanium with minimal impurities. Classified under HTS 8108.20.0010 as unwrought titanium in sponge form, used as the primary raw material for titanium ingot production in aerospace and medical industries.
Medical-Grade Titanium Sponge
Ultra-pure titanium sponge for implant manufacturing, compliant with ISO 5832-2 standards featuring low cytotoxic elements. HTS 8108.20.0010 covers this unwrought sponge form used to produce biocompatible titanium alloys for prosthetics and surgical devices.
Ti-6Al-4V Pre-Alloyed Sponge
Blended titanium sponge pre-alloyed with 6% aluminum and 4% vanadium for direct forging applications. Still classified under HTS 8108.20.0010 as unwrought titanium sponge since titanium exceeds 99% of metal content per Chapter notes.
Reactor-Grade Titanium Sponge
High-purity sponge for nuclear reactor components, featuring ultra-low hydrogen and carbon levels. HTS 8108.20.0010 applies to this unwrought titanium sponge used in zirconium alloy cladding production.
Aerospace-Grade Titanium Sponge
Premium titanium sponge meeting AMS 4921 specifications for aircraft applications, featuring low oxygen and iron content. Falls under HTS 8108.20.0010 as unwrought titanium sponge, the starting material for high-strength titanium alloys in jet engines and airframes.