15-50mlZircon crucible

702 Zirconium Crucible (Zr702/HZr702, ASTM R60702) is a high-performance, high-temperature resistant, and corrosion-resistant container made of industrial pure zirconium with a zirconium content ≥99.2% and extremely low impurities.

Core Parameters

Grade: Zr702 (R60702)

Purity: ≥99.4%

Density: 6.51 g/cm³

Melting Point: 1852℃, long-term usable temperature ≤1200℃

Process: Forging/spinning + precision machining, seamless one-piece or with lid

Specifications: Volume 10 mL – several liters, wall thickness 0.5–5 mm, customizable

Key Characteristics

Strong Corrosion Resistance: Forms a dense oxide film at room temperature, resistant to sulfuric acid, hydrochloric acid, strong alkalis, and molten salts, superior to titanium and stainless steel, approaching tantalum.

High Temperature Stability: Maintains good strength at high temperatures, resistant to thermal shock, not prone to cracking, and has a lifespan approximately 3 times longer than graphite crucibles.

Chemical Inertness: Does not contaminate high-purity materials, suitable for the preparation of high-purity metals and semiconductor materials.

Low Neutron Absorption: Suitable for nuclear fuel processing in the nuclear industry.

II. Main Application Areas

High-Temperature Metallurgy / Vacuum Melting
Vacuum melting and casting of reactive/high-purity metals such as titanium, aluminum, niobium, and tantalum.

Melting of precious metals (gold, silver, platinum) and rare earth alloys, reducing impurities.

Preparation of high-temperature alloys and precision castings, avoiding carbon contamination.

Semiconductor and Crystal Growth
Single crystal growth crucibles for SiC, sapphire, YAG, etc. (e.g., Czochralski method, pulling method).

Synthesis of high-purity compound semiconductor materials, ensuring purity.

Chemical and Corrosive Environments
Strong acid/strong alkali reaction vessels, evaporating dishes, melting vessels.

Handling corrosive materials in petrochemical and fine chemical industries.

Nuclear Industry
Nuclear fuel (uranium, plutonium) handling and storage containers, neutron-transparent, corrosion-resistant.

Research and Laboratories
Temperature analysis (TGA/DSC), high-temperature sintering, material synthesis crucibles.

Geological, metallurgical, and materials science experiments, chemically resistant, reusable.

Other: Aerospace: High-temperature component manufacturing; Photovoltaics: Silicon material purification and crystal growth auxiliary containers

Quality Control and Testing

Each product undergoes rigorous inspection before shipment:

Dimensional Inspection: Precise measurement of thickness, length, and width

Chemical Composition and Mechanical Property Analysis: Third-party testing reports

Surface Inspection: Visual and microscopic inspection for defects

Ultrasonic Testing: Detection of internal defects

Why Choose Us

Technology and Quality: Located in Baoji, China's Titanium Valley, we possess professional production technology and extensive experience in non-ferrous metal manufacturing.

Global Coverage: We provide consistently high-quality products to customers in Australia, South Korea, Germany, the USA, the UK, Malaysia, and the Middle East.

Quality Commitment: We never compromise on quality and are responsible for every product we manufacture.

Technical Support: We have professional personnel overseeing the entire process from raw materials to finished products!

Contact Us

Our team is dedicated to serving you and hopes that every product you purchase will meet your expectations!

Email: lucky@bjfreelong.com

WhatsApp: +86 13335371763

Please contact us for detailed quotations and technical specifications. We look forward to becoming your trusted high-end titanium materials partner.