Knowledge What is the Melting Point of a Crucible? 5 Crucial Factors to Consider
Author avatar

Tech Team · Kintek Solution

Updated 2 months ago

What is the Melting Point of a Crucible? 5 Crucial Factors to Consider

The melting point of a crucible can vary depending on the material it is made of.

What is the Melting Point of a Crucible? 5 Crucial Factors to Consider

What is the Melting Point of a Crucible? 5 Crucial Factors to Consider

1. Material Composition

For example, a pure platinum crucible has a melting point above 1770°C.

However, if alloyed with rhodium, the melting point can be elevated even further.

A platinum-rhodium alloy composed of 10% or 3.5% rhodium has a melting point of 1780-1850°C.

2. Type of Crucible

Other types of crucibles, such as carbon-bonded and ceramic-bonded clay graphite and silicon carbide crucibles, are commonly used for melting and holding various metals and alloys.

The temperature range for these crucibles can vary depending on the specific metal or alloy being melted.

For example, aluminum and aluminum alloys, copper and copper-based alloys, and precious metals typically require crucibles that can withstand temperatures ranging from 400°C/750°F to 1600°C/2912°F.

3. Temperature Limits

It is important not to heat a crucible above its maximum temperature, as this can lead to dangerous crucible failure.

Similarly, operating below the crucible's lower temperature limit can also cause problems, such as oxidation of the crucible material.

4. Alumina Crucibles

The properties of alumina crucibles are also worth considering.

Alumina is often chosen for its low melting point, which is around 2000°C (3600°F), lower than other common crucible materials like graphite or molybdenum.

Alumina also has a high thermal conductivity, making it easier to handle and requiring less energy to heat the crucible.

Additionally, alumina is harder than iron or graphite, providing higher strength and allowing it to withstand higher internal pressure due to thermal expansion.

5. Application-Specific Requirements

Overall, the melting point and properties of a crucible depend on the material it is made of and the specific metals or alloys it is intended to handle.

Continue exploring, consult our experts

Looking for high-quality crucibles for your laboratory needs? Look no further than KINTEK!

We offer a wide range of crucibles made from different materials, including pure platinum, platinum-rhodium alloy, carbon-bonded clay graphite, and silicon carbide.

Our crucibles have varying melting points, ensuring durability and reliability for your melting and holding applications.

Don't compromise on quality or risk failure – choose KINTEK for all your crucible needs.

Contact us today to find the perfect crucible for your lab!

Related Products

Alumina (Al2O3) Ceramic Crucible For Laboratory Muffle Furnace

Alumina (Al2O3) Ceramic Crucible For Laboratory Muffle Furnace

Alumina ceramic crucibles are used in some materials and metal melting tools, and flat-bottomed crucibles are suitable for melting and processing larger batches of materials with better stability and uniformity.

Vacuum levitation Induction melting furnace

Vacuum levitation Induction melting furnace

Experience precise melting with our Vacuum Levitation Melting Furnace. Ideal for high melting point metals or alloys, with advanced technology for effective smelting. Order now for high-quality results.

Evaporation Crucible for Organic Matter

Evaporation Crucible for Organic Matter

An evaporation crucible for organic matter, referred to as an evaporation crucible, is a container for evaporating organic solvents in a laboratory environment.

Electron Gun Beam Crucible

Electron Gun Beam Crucible

In the context of electron gun beam evaporation, a crucible is a container or source holder used to contain and evaporate the material to be deposited onto a substrate.

Alumina (Al2O3) Crucible With Lid Cylindrical Laboratory Crucible

Alumina (Al2O3) Crucible With Lid Cylindrical Laboratory Crucible

Cylindrical Crucibles Cylindrical crucibles are one of the most common crucible shapes, suitable for melting and processing a wide variety of materials, and are easy to handle and clean.

Electron Beam Evaporation Coating Tungsten Crucible / Molybdenum Crucible

Electron Beam Evaporation Coating Tungsten Crucible / Molybdenum Crucible

Tungsten and molybdenum crucibles are commonly used in electron beam evaporation processes due to their excellent thermal and mechanical properties.

Electron Beam Evaporation Coating / Gold Plating / Tungsten Crucible / Molybdenum Crucible

Electron Beam Evaporation Coating / Gold Plating / Tungsten Crucible / Molybdenum Crucible

These crucibles act as containers for the gold material evaporated by the electron evaporation beam while precisely directing the electron beam for precise deposition.

Graphite evaporation crucible

Graphite evaporation crucible

Vessels for high temperature applications, where materials are kept at extremely high temperatures to evaporate, allowing thin films to be deposited on substrates.

Alumina (Al2O3) Ceramic Crucible Semicircle Boat  with Lid

Alumina (Al2O3) Ceramic Crucible Semicircle Boat with Lid

Crucibles are containers widely used for melting and processing various materials, and semicircular boat-shaped crucibles are suitable for special smelting and processing requirements. Their types and uses vary by material and shape.

Electron Beam Evaporation Graphite Crucible

Electron Beam Evaporation Graphite Crucible

A technology mainly used in the field of power electronics. It is a graphite film made of carbon source material by material deposition using electron beam technology.

2200 ℃ Tungsten vacuum furnace

2200 ℃ Tungsten vacuum furnace

Experience the ultimate refractory metal furnace with our Tungsten vacuum furnace. Capable of reaching 2200℃, perfect for sintering advanced ceramics and refractory metals. Order now for high-quality results.

Ultra-high temperature graphitization furnace

Ultra-high temperature graphitization furnace

The ultra-high temperature graphitization furnace utilizes medium frequency induction heating in a vacuum or inert gas environment. The induction coil generates an alternating magnetic field, inducing eddy currents in the graphite crucible, which heats up and radiates heat to the workpiece, bringing it to the desired temperature. This furnace is primarily used for graphitization and sintering of carbon materials, carbon fiber materials, and other composite materials.

Vertical high temperature graphitization furnace

Vertical high temperature graphitization furnace

Vertical high temperature graphitization furnace for carbonization and graphitization of carbon materials up to 3100℃.Suitable for shaped graphitization of carbon fiber filaments and other materials sintered in a carbon environment.Applications in metallurgy, electronics, and aerospace for producing high-quality graphite products like electrodes and crucibles.

1800℃ Muffle furnace

1800℃ Muffle furnace

KT-18 muffle furnace with Japan Al2O3 polycrystalline fibe and Silicon Molybdenum heating element, up to 1900℃, PID temperature control and 7" smart touch screen. Compact design, low heat loss, and high energy efficiency. Safety interlock system and versatile functions.

2200 ℃ Graphite Vacuum furnace

2200 ℃ Graphite Vacuum furnace

Discover the power of the KT-VG Graphite Vacuum Furnace - with a maximum working temperature of 2200℃, it's perfect for vacuum sintering of various materials. Learn more now.

laboratory vacuum tilt rotary tube furnace

laboratory vacuum tilt rotary tube furnace

Discover the versatility of Laboratory Rotary Furnace: Ideal for calcination, drying, sintering, and high-temperature reactions. Adjustable rotating and tilting functions for optimal heating. Suitable for vacuum and controlled atmosphere environments. Learn more now!

1400℃ Muffle furnace

1400℃ Muffle furnace

Get precise high-temperature control up to 1500℃ with KT-14M Muffle furnace. Equipped with a smart touch screen controller and advanced insulation materials.

Continuous graphitization furnace

Continuous graphitization furnace

High-temperature graphitization furnace is a professional equipment for graphitization treatment of carbon materials. It is a key equipment for the production of high-quality graphite products. It has high temperature, high efficiency and uniform heating. It is suitable for various high-temperature treatments and graphitization treatments. It is widely used in metallurgy, electronics, aerospace, etc. industry.

Vacuum furnace with ceramic fiber liner

Vacuum furnace with ceramic fiber liner

Vacuum furnace with polycrystalline ceramic fiber insulation liner for excellent heat insulation and uniform temperature field. Choose from 1200℃ or 1700℃ max. working temperature with high vacuum performance and precise temperature control.


Leave Your Message