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.

(Corundum crucible 95% 99% Alumina Precision Ceramic Corundum-mullite Alumina Crucible For Melting Steel)

Specification of Corundum crucible 95% 99% Alumina Precision Ceramic Corundum-mullite Alumina Crucible For Melting Steel

The Corundum Crucible, readily available in 95% and 99% alumina structures, is a high-performance precision ceramic product designed for severe thermal and chemical resistance. Engineered for melting steel, alloys, and other metals, these crucibles incorporate durability with exceptional thermal stability, making them perfect for commercial shops, labs, and metallurgical applications. The 95% alumina variant deals an economical solution with durable efficiency, while the 99% alumina version delivers superior pureness and resistance to greater temperature levels, making sure marginal contamination during high-precision melting processes.

Created from a corundum-mullite composite, these crucibles include an one-of-a-kind mix of alumina (Al ₂ O ₃) and mullite (3Al ₂ O ₃ · 2SiO ₂), enhancing mechanical toughness and thermal shock resistance. The material’s low porosity (

(Corundum crucible 95% 99% Alumina Precision Ceramic Corundum-mullite Alumina Crucible For Melting Steel)

Applications of Corundum crucible 95% 99% Alumina Precision Ceramic Corundum-mullite Alumina Crucible For Melting Steel

Corundum crucibles, readily available in 95% and 99% alumina structures, in addition to corundum-mullite blends, are precision-engineered ceramic vessels designed for high-temperature applications, specifically in melting metals like steel. These crucibles are crafted from high-purity alumina (Al ₂ O ₃), offering exceptional thermal security, chemical resistance, and mechanical strength. With alumina material varying from 95% to 99%, they satisfy varied industrial requirements, stabilizing cost and performance. The enhancement of mullite (a composite of alumina and silica) in corundum-mullite versions improves thermal shock resistance, making them optimal for cyclic home heating and cooling down processes.

The 95% alumina crucibles are matched for applications running listed below 1700 ° C, supplying a cost-effective solution for melting non-ferrous steels, alloys, or steel in small foundries. The 99% alumina crucibles, with a greater pureness and density, withstand extreme temperature levels approximately 1800 ° C, making them vital in steelmaking, superalloy production, and advanced metallurgical processes. Their low porosity reduces metal infiltration, ensuring longer service life and minimized contamination. Corundum-mullite crucibles integrate alumina’s refractoriness with mullite’s tension resistance, excelling in settings with rapid temperature fluctuations, such as induction heating systems or vacuum melting systems.

These crucibles are chemically inert, withstanding assault from molten steel, slag, and fluxes. Their precision producing guarantees consistent wall density and architectural honesty, critical for consistent warmth circulation and lessening thermal tension. Applications extend past steel melting to glass handling, crystal development, and lab experiments calling for high-purity problems. Industries such as aerospace, automobile, and jewelry rely on their sturdiness and dependability for generating top quality spreadings.

Secret advantages include long term lifespan compared to standard graphite or clay-graphite crucibles, lowered downtime for replacements, and energy effectiveness because of outstanding thermal conductivity. The 99% alumina variant is particularly preferred in high-oxygen environments, where oxidation resistance is extremely important. Corundum-mullite crucibles supply a happy medium, balancing cost and efficiency for medium- to high-temperature operations. All variants are personalized in shape and size, accommodating particular heating system styles. For melting steel, these crucibles guarantee minimal steel loss, precise temperature control, and operational safety and security, making them a cornerstone of contemporary metallurgy and materials science.

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 Corundum crucible 95% 99% Alumina Precision Ceramic Corundum-mullite Alumina Crucible For Melting Steel

**What is the maximum temperature a corundum crucible can withstand?**
The 95% alumina crucible can withstand continuous use at temperatures up to 1650°C (3002°F), while the 99% alumina version handles up to 1800°C (3272°C). Both are suitable for melting steel, which typically requires 1300–1600°C. Short-term exposure to slightly higher temperatures is possible, but prolonged use beyond these limits risks cracking or deformation.

**What’s the difference between 95% and 99% alumina crucibles?**
The 99% alumina crucible offers superior thermal stability, density, and corrosion resistance due to its higher purity, making it ideal for extreme temperatures and aggressive molten metals. The 95% variant, blended with corundum-mullite, provides better thermal shock resistance and cost-effectiveness for moderate applications. Choose 99% for prolonged high-temperature use and 95% for frequent heating-cooling cycles.

**Are these crucibles resistant to thermal shock?**
Yes, the corundum-mullite blend in the 95% alumina crucible enhances thermal shock resistance, allowing it to endure rapid temperature changes without cracking. The 99% alumina crucible has slightly lower shock resistance due to its higher purity but compensates with better heat retention. Preheating both crucibles before use minimizes thermal stress.

**How long does a corundum crucible last?**
Lifespan depends on usage intensity, temperature, and cooling practices. With proper care (avoiding abrupt temperature shifts and chemical contamination), the 95% alumina crucible lasts 20–50 melts, while the 99% version can endure 50–100 melts. Regular inspection for cracks or erosion is recommended to prevent failure during operation.

**Can these crucibles melt metals other than steel?**
Yes, they are compatible with melting non-ferrous metals like gold, silver, copper, and alloys. The high chemical inertness of alumina resists reactions with most molten metals. However, avoid highly corrosive materials (e.g., fluorides or strong alkalis) unless specified. Always verify compatibility with specific materials to prevent crucible degradation.

(Corundum crucible 95% 99% Alumina Precision Ceramic Corundum-mullite Alumina Crucible For Melting Steel)