Overview of Corundum Crucible

Corundum crucibles, made from alumina (Al₂O₃), are highly valued for their exceptional thermal resistance and chemical stability. These crucibles are ideal for high-temperature applications, such as melting and annealing processes in laboratories and industrial settings. Corundum crucibles can withstand temperatures up to 1800°C and are resistant to most chemical reagents, making them indispensable in various scientific and manufacturing operations.

Features of Corundum Crucible

High Thermal Resistance: Can withstand temperatures up to 1800°C without degrading.

Chemical Stability: Resistant to most acids and alkalis, ensuring minimal contamination during experiments or production.

Durability: Extremely durable and long-lasting, even under harsh conditions.

Non-Reactive: Does not react with the materials being processed, preserving sample purity.

Versatility: Suitable for a wide range of applications including melting metals, glass, and ceramics.

Precision Engineering: Manufactured to tight tolerances for consistent performance and reliability.

(C795 C799 High Purity Refractory Corundum Al2O3 Alumina Ceramic Crucible Sagger Tray Boats)

Specification of C795 C799 High Purity Refractory Corundum Al2O3 Alumina Ceramic Crucible Sagger Tray Boats

This alumina ceramic crucible, sagger, tray, or boat uses high purity corundum. It comes in grades C795 and C799. C795 offers 99.5% Al2O3 purity. C799 provides an even higher purity level at 99.99% Al2O3. This high purity is essential. It ensures minimal contamination during demanding processes.

The material is refractory. This means it handles extreme heat very well. It withstands temperatures up to 1750°C (3182°F) consistently. Its thermal shock resistance is good. Sudden temperature changes cause less cracking or breaking. This reliability is crucial in labs and industry.

Its structure is very dense. This density gives it excellent mechanical strength. It resists wear and physical damage effectively. The ceramic is also chemically inert. It doesn’t react with most acids, alkalis, or molten metals. This chemical stability protects your materials inside.

These properties make it ideal for many high-temperature jobs. Use it for melting metals like gold, silver, platinum. Use it for sintering advanced ceramics or powder metallurgy parts. Use it for heat treating samples. Use it for crystal growth processes. It works well as a stable container or support in kilns and furnaces.

The product comes in various forms. Crucibles hold molten material. Saggers protect items during firing. Trays carry multiple smaller parts. Boats transport materials through furnace zones. Each form uses the same high-purity alumina base. This ensures consistent performance across applications. Its smooth surface is easy to clean. It also helps prevent material sticking.

(C795 C799 High Purity Refractory Corundum Al2O3 Alumina Ceramic Crucible Sagger Tray Boats)

Applications of C795 C799 High Purity Refractory Corundum Al2O3 Alumina Ceramic Crucible Sagger Tray Boats

These C795 and C799 alumina ceramic parts handle extreme heat reliably. They are made from very pure corundum, mostly aluminum oxide (Al2O3). This purity matters for critical processes. Impurities can ruin sensitive materials. These parts resist temperatures far beyond most metals. They stay strong under thermal shock, like rapid heating or cooling. Chemical attack is rarely a problem. Acids, bases, and reactive molten metals usually don’t damage them. Their mechanical strength is high. They resist wear and abrasion well over time.

Crucibles are common. Labs and foundries use them to melt metals, alloys, and glass. The high purity ensures the melt stays clean. No contamination from the crucible itself. Saggers are protective boxes. They shield delicate items inside kilns or furnaces during firing. This prevents direct flame contact and contamination. Trays carry parts or powders through high-temperature processes. They offer a stable, inert platform. Boat containers are essential in semiconductor work. They hold silicon wafers during diffusion and CVD processes. The alumina won’t introduce unwanted elements.

These ceramics are vital in metallurgy for superalloy production. They are key in advanced ceramics manufacturing for sintering technical parts. The electronics industry depends on them for wafer processing. Research labs use them daily for high-temperature experiments. Their stability supports consistent results batch after batch. They last longer than cheaper alternatives. This reduces downtime and replacement costs. Choosing the right grade, like C795 or C799, depends on the specific temperature and purity needs.

Company Introduction

Welcome to Teen-Hot,a leading global supplier of high-quality crucibles designed for various industrial applications. We offer an extensive range of crucibles, including graphite, ceramic, and metal varieties, tailored to meet the needs of foundries, laboratories, and manufacturers. Our products are renowned for their durability, thermal resistance, and precision engineering, ensuring optimal performance in melting and heat treatment processes. With advanced manufacturing facilities and a commitment to excellence, we provide reliable, cost-effective solutions worldwide. Partner with us for your crucible needs and experience superior quality, expert support, and timely delivery.

If you have any questions, 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 C795 C799 High Purity Refractory Corundum Al2O3 Alumina Ceramic Crucible Sagger Tray Boats

What’s the maximum temperature these alumina ceramic crucibles handle?
These crucibles tolerate temperatures up to 1750°C (3182°F) continuously. This high heat resistance makes them ideal for demanding furnace work. They are built for repeated use under extreme conditions.

Can they handle corrosive chemicals?
Yes. The high-purity Al2O3 alumina offers excellent chemical resistance. They resist attack from most acids, molten salts, and metals. Avoid strong alkalis and hydrofluoric acid. These chemicals can damage the material over time.

Will they crack from sudden temperature changes?
They show good thermal shock resistance. This means they handle rapid heating and cooling cycles reasonably well. Avoid extreme, sudden temperature jumps. Always follow recommended heating and cooling rates for best lifespan.

How should I clean them after use?
Clean them carefully. Use mild detergents and warm water. Avoid harsh abrasives or strong acids. Stubborn residues sometimes need gentle mechanical removal. Ensure they are completely dry before reheating to prevent steam cracking.

What sizes and shapes are available?
We offer many standard sizes and shapes like boats, trays, saggers, and crucibles. Common sizes cover most lab and industrial needs. Need something specific? Ask us about custom dimensions. We can often make what you require.

(C795 C799 High Purity Refractory Corundum Al2O3 Alumina Ceramic Crucible Sagger Tray Boats)