Graphite Crucible for Laboratory Melting
Product Overview
Jincheng laboratory graphite crucibles are precision-manufactured small-sized crucibles designed for research and laboratory applications including metal melting, sample preparation, and high-temperature material testing. These crucibles offer excellent thermal conductivity and chemical resistance for reliable experimental results.
Our lab crucibles are available in various small sizes and shapes, from 10ml to 500ml capacity, suitable for muffle furnaces, tube furnaces, and induction heating systems. Custom sizes and special geometries can be produced to meet specific experimental requirements.
Key Features
- High purity graphite ensures no contamination of melted samples
- Excellent thermal conductivity for rapid and uniform heating
- High temperature resistance up to 3000°C in inert atmosphere
- Good thermal shock resistance withstands rapid temperature changes
- Resistant to acids and alkalis for versatile chemical compatibility
- Smooth inner surface for easy sample removal and cleaning
- Precision machined dimensions for consistent fit in furnaces
- Available in multiple sizes from 10ml to 500ml capacity
Technical Specifications
| Parameter | Value |
|---|---|
| Material | High purity isostatic graphite |
| Density | 1.75 - 1.85 g/cm3 |
| Ash Content | < 500 ppm |
| Max Temperature | 3000°C (vacuum/inert) |
| Capacity Range | 10 ml - 500 ml |
| Outer Diameter | 15 - 80 mm |
| Height | 20 - 100 mm |
| Wall Thickness | 2 - 5 mm |
| Shore Hardness | 60 - 70 HS |
| Electrical Resistivity | 10 - 13 uOhm*m |
Applications
- University and research labs for material science experiments
- Metal melting and casting of small sample quantities
- Sample preparation for analysis including XRF and spectroscopy
- Jewelry and precious metal melting for gold, silver, and platinum
- Ceramic and powder metallurgy research for small batch sintering
- Battery material testing for electrode research and development
Why Choose Jincheng Lab Crucibles?
- Research-grade quality with consistent performance for reproducible results
- Wide size range to fit various furnace chambers and heating systems
- Small order quantities welcome - sample orders from 1 piece
- Fast shipping - standard sizes in stock, ready to ship within 24 hours
- Competitive pricing for students, researchers, and small businesses
- Custom dimensions available for specialized experimental setups
- Material certification provided with every order
- Export worldwide to universities and research institutes globally
Frequently Asked Questions
Q1: What is the maximum temperature for graphite crucibles?
A: In vacuum or inert atmosphere (argon, nitrogen), graphite crucibles can withstand up to 3000°C. In air, they should not exceed 450°C due to oxidation.
Q2: Can I melt aluminum in a graphite crucible?
A: Yes, graphite crucibles are excellent for melting aluminum, copper, brass, and other non-ferrous metals. However, they are not recommended for melting iron or steel due to carbon dissolution at very high temperatures.
Q3: How do I clean a graphite crucible after use?
A: Allow the crucible to cool completely, then remove solidified material gently. Light residue can be cleaned with fine sandpaper. Avoid water or aggressive chemicals.
Q4: What is the minimum order quantity?
A: There is no MOQ. We accept orders from 1 piece for research and testing purposes.
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