Overview of In Stock Refractory Al2o3 Alumina Ceramic Melting Square Crucible with Lids

In Stock Refractory Al2o3 Alumina Ceramic Melting Square Crucible with Lids 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 In Stock Refractory Al2o3 Alumina Ceramic Melting Square Crucible with Lids

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.

(In Stock Refractory Al2o3 Alumina Ceramic Melting Square Crucible with Lids)

Specification of In Stock Refractory Al2o3 Alumina Ceramic Melting Square Crucible with Lids

This alumina ceramic melting crucible is square and features a cover. It prepares to deliver now. You do not require to wait on manufacturing. The material is high-purity Al2O3 alumina. This purity ensures trustworthy performance under severe warmth. The crucible deals with temperatures up to 1700 ° C constantly. It stands up to abrupt temperature level modifications well. Thermal shock resistance is solid. The square shape provides practical advantages. It fits efficiently inside heating system chambers. Area use is better than round designs. The included lid is crucial. It lessens warm loss during melting. It aids contain products inside. It protects your melt from contamination. The cover fits snugly on the crucible body. We offer several standard sizes. Typical choices are 50x50mm, 75x75mm, 100x100mm. Wall surface density gives good toughness. It balances durability with warmth transfer. Alumina ceramic is chemically inert. It withstands strike from lots of liquified metals. It resists strike from slags and changes. This crucible benefits thawing precious metals. It benefits melting non-ferrous alloys. It helps lab experiments and small batch production. Surface area finish is smooth. This protects against product sticking. Cleansing is simpler after use. Mechanical stamina is high. It withstands fracturing and breaking. The crucible lasts long under proper use. Manage it meticulously when warm. Constantly utilize proper tongs. Prevent unexpected influences or drops. Shop it in a dry area. This crucible is a reputable tool. It appropriates for demanding high-temperature tasks. It uses consistent results.

(In Stock Refractory Al2o3 Alumina Ceramic Melting Square Crucible with Lids)

Applications of In Stock Refractory Al2o3 Alumina Ceramic Melting Square Crucible with Lids

Our in-stock refractory Al2O3 alumina ceramic melting square crucibles with covers serve several practical objectives. These crucibles deal with severe warm up to 1750 ° C. They resist chemical damage. Their high pureness prevents product contamination. Labs utilize them daily for melting samples and testing products. The tight-fitting covers keep experiments clean and safe.

Metal workers pick these crucibles for melting gold, silver, and copper. The alumina material doesn’t split under quick temperature level changes. It withstands metal slag deterioration. Jewelers rely upon them for casting precious metals. The square shape fits neatly right into heaters, conserving room.

Glass manufacturing facilities melt batches inside these crucibles. The material stays stable versus liquified glass erosion. The lids regulate temperature level and minimize dissipation. Chemical plants process destructive substances in them. Alumina will not respond with acids or antacid. This keeps reactions pure.

School show steel spreading with these crucibles. Pupils find out safely due to the fact that alumina stands up to thermal shock. The square base avoids tipping throughout handling. Enthusiasts utilize them for small projects like alloy creation.

These crucibles last long. They endure duplicated home heating cycles without wearing. Their smooth surface area permits easy deposit removal. The piling style stores efficiently. Available sizes match different furnace measurements.

We maintain these crucibles all set for immediate delivery. They fit industrial and craft applications. Choose the ideal size for your heater or kiln.

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 In Stock Refractory Al2o3 Alumina Ceramic Melting Square Crucible with Lids

FAQs: In Stock Alumina Ceramic Melting Crucibles with Lids

What’s the highest temperature these crucibles handle?
These alumina crucibles withstand extreme heat. They operate reliably up to 1750°C (3182°F). This makes them suitable for most metal melting jobs. Avoid exceeding this limit. It risks damaging the crucible.

Are these crucibles fragile?
Alumina ceramic is strong. It resists wear well. Handle it carefully though. Avoid impacts or drops. Thermal shock is also a risk. Don’t expose a cold crucible to sudden high heat. Don’t quench a hot one in cold liquid. Follow heating/cooling schedules.

What metals can I melt in them?
These crucibles work well with many metals. Common choices include gold, silver, copper, platinum. They also handle brass and bronze. Avoid highly corrosive materials. Molten iron or steel attack alumina. Don’t melt alkali metals like sodium either.

Why do I need the lid?
The lid serves important purposes. It reduces heat loss significantly. This saves energy. It helps prevent material splashing out. This is safer. It also minimizes oxidation of your melt. This protects metal purity. Always use the matching lid.

How do I clean them after use?
Let the crucible cool completely first. Never cool it rapidly. Remove leftover material gently. Use non-abrasive tools. Avoid metal scrapers. A soft brush often works. For stubborn residue, soak in appropriate acid. Rinse thoroughly with clean water. Dry completely before reuse.

(In Stock Refractory Al2o3 Alumina Ceramic Melting Square Crucible with Lids)