Overview of High Pure Refractory 99% Corundum Alumina Crucible Boat Al2O3 Ceramic Parts for Gold Silver Aluminum Melting

High Pure Refractory 99% Corundum Alumina Crucible Boat Al2O3 Ceramic Parts for Gold Silver Aluminum Melting is high-performance ceramic containers made from 99%+ pure aluminum oxide (Al₂O₃). Designed for extreme thermal and chemical environments, they withstand temperatures up to 1800°C, making them ideal for laboratory, industrial, and research applications such as metal melting, sintering, and chemical analysis.

Key Features of High Pure Refractory 99% Corundum Alumina Crucible Boat Al2O3 Ceramic Parts for Gold Silver Aluminum Melting

High-Temperature Resistance – Stable up to 1800°C with minimal thermal expansion.

Superior Thermal Shock Resistance – Resists cracking under rapid temperature changes.

Chemical Inertness – Unaffected by acids, alkalis, and molten metals.

High Mechanical Strength – Durable and long-lasting under harsh conditions.

Customizable Sizes & Shapes – Available in standard and tailored designs.

(High Pure Refractory 99% Corundum Alumina Crucible Boat Al2O3 Ceramic Parts for Gold Silver Aluminum Melting)

Specification of High Pure Refractory 99% Corundum Alumina Crucible Boat Al2O3 Ceramic Parts for Gold Silver Aluminum Melting

This Alumina Crucible Boat handles high heat metal melting. It works great for gold, silver, aluminum, and similar metals. The material is super pure corundum alumina. We make it with 99% Al2O3. This high purity matters. It means the crucible boat resists chemical reactions. Your molten metal stays clean. No unwanted stuff gets in.

Heat resistance is crucial. This boat handles extreme temperatures easily. It withstands continuous use up to 1750°C (3182°F). Short bursts can go even higher. This is vital for melting metals effectively. The boat deals with sudden temperature changes well. Heating up fast or cooling down fast won’t crack it easily. This thermal shock resistance saves money. Your boat lasts longer.

Density is high. This makes the ceramic very strong and durable. It won’t chip or break under normal use. The surface is smooth. Molten metal flows out cleanly. Less metal sticks to the sides. You get more usable metal back. The shape is simple, a long boat design. This shape is good for many melting jobs. It fits easily into furnaces.

We form the boat precisely. This ensures consistent walls and a flat base. Stability is good during melting. You need a reliable holder for your valuable metals. This alumina boat provides that reliability. It offers excellent performance for hobbyists and professionals. Handling precious metals demands trustworthy tools. This crucible boat meets that demand.

(High Pure Refractory 99% Corundum Alumina Crucible Boat Al2O3 Ceramic Parts for Gold Silver Aluminum Melting)

Applications of High Pure Refractory 99% Corundum Alumina Crucible Boat Al2O3 Ceramic Parts for Gold Silver Aluminum Melting

These crucibles work well for melting metals. They are made from nearly pure alumina. This material handles extreme heat. It won’t melt or crack easily when temperatures change fast. This is vital for melting gold and silver. These metals need very high heat. The crucible stays strong. It doesn’t contaminate your melt. Your gold stays pure. Your silver stays pure. This is crucial for jewelry makers. It’s important for coin producers too. Even small jewelry shops rely on this purity.

Aluminum melting also uses these crucibles. Aluminum melts at lower heat than gold or silver. The crucible still performs perfectly. It resists the liquid aluminum. It doesn’t react with it. The crucible lasts many melts. This saves money over time. You don’t need to replace it often. Foundries use them for casting parts. Metal recycling plants use them too.

Labs use these alumina parts. They need precise results. Contamination ruins experiments. The high purity ceramic prevents this. It handles repeated heating and cooling cycles. Crucible boats are common in lab furnaces. They hold samples securely. They endure harsh conditions.

The dense structure is key. It stops metal from soaking in. Cleaning is simpler. Reuse is practical. This reduces waste. It lowers operating costs. Industrial users appreciate this durability. The material offers great chemical resistance. Acids and bases don’t damage it easily. This adds to its long life. Safety improves. The crucible doesn’t suddenly fail. Workers avoid dangerous spills. Handling molten metal is safer.

Company Profile

Alumina Technology Co., Ltd,. We focus on the research and development, production and sales of alumina products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Alumina Boat, Alumina Crucible, Alumina Dish, Alumina Foam Filter, Alumina Plate, Alumina Rod, Alumina Bar, Alumina Balls, Filter Alumina, Nano Alumina Powder, Spherical Alumina Powder, ect. please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of High Pure Refractory 99% Corundum Alumina Crucible Boat Al2O3 Ceramic Parts for Gold Silver Aluminum Melting

What’s the highest temperature this crucible handles?
It withstands 1750°C continuously. This suits melting gold, silver, aluminum. Do not exceed 1800°C. Extreme heat damages it.

Will molten metal stick to the surface?
No. The alumina surface stays smooth. Molten metal flows cleanly. It won’t stick or leave residue. You get pure pours.

How many times can I use one crucible?
Lifespan depends on use. Gentle heating and cooling help. Avoid bumps and scratches. Expect many uses with proper care. Rough handling shortens its life.

Can it handle sudden temperature changes?
Yes. It resists thermal shock well. Moving it from hot to cool is generally safe. Avoid extreme, rapid temperature swings. Gradual changes are always better.

How do I clean it after melting?
Let it cool completely first. Tap out leftover metal carefully. Use a soft brush for loose debris. Stubborn residue needs gentle scraping. Avoid harsh chemicals or abrasives. They harm the surface.

(High Pure Refractory 99% Corundum Alumina Crucible Boat Al2O3 Ceramic Parts for Gold Silver Aluminum Melting)