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Pure Graphite Crucible Molten Metal Pouring
PRODUCT FEATURES
Rapid Melting
High thermal conductivity graphite material improves thermal efficiency by 30%, significantly reducing melting time.
Superior Thermal Shock Resistance
Resin-bonded technology withstands rapid heating and cooling, allowing direct charging without cracking.
Exceptional Durability
High mechanical strength resists physical impact and chemical erosion for a longer service life.
TECHNICAL SPECIFICATIONS
| Graphite / % | 41.49 |
| SiC / % | 45.16 |
| B/C / % | 4.85 |
| Al₂O₃ / % | 8.50 |
| Bulk density / g·cm⁻³ | 2.20 |
| Apparent porosity / % | 10.8 |
| Crushing strength/ MPa (25℃) | 28.4 |
| Modulus of rupture/ MPa (25℃) | 9.5 |
| Fire resistance temperature/ ℃ | >1680 |
| Thermal shock resistance / Times | 100 |
| No | Model | H | OD | BD |
| RA100 | 100# | 380 | 330 | 205 |
| RA200H400 | 180# | 400 | 400 | 230 |
| RA200 | 200# | 450 | 410 | 230 |
| RA300 | 300# | 450 | 450 | 230 |
| RA350 | 349# | 590 | 460 | 230 |
| RA350H510 | 345# | 510 | 460 | 230 |
| RA400 | 400# | 600 | 530 | 310 |
| RA500 | 500# | 660 | 530 | 310 |
| RA600 | 501# | 700 | 530 | 310 |
| RA800 | 650# | 800 | 570 | 330 |
| RR351 | 351# | 650 | 420 | 230 |
PROCESS FLOW
1. Precision Formulation
High-purity graphite + premium silicon carbide + proprietary binding agent.
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2.Isostatic Pressing
Density up to 2.2g/cm³ | Wall thickness tolerance ±0.3m
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3.High-Temperature Sintering
SiC particle recrystallization forming 3D network structure
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5. Rigorous Quality Inspection
Unique tracking code for full lifecycle traceability
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4. Surface Enhancement
Anti-oxidation coating → 3× improved corrosion resistance
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6. Safety Packaging
Shock-absorbent layer + Moisture barrier + Reinforced casing
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PRODUCT APPLICATION
Suitable for most non-ferrous metals
Melt Aluminium
Melt Copper
Melt Gold
WHY CHOOSE US
FAQS
Q1: Can The Crucible Cover reduce energy costs?
A: Absolutely! It reduces heat loss, cutting energy consumption by up to 30%.
Q2: What furnaces are compatible?
A: It’s versatile—suitable for induction, gas, and electric furnaces.
Q3: Is graphite silicon carbide safe for high temperatures?
A: Yes. Its thermal and chemical stability makes it perfect for extreme conditions.
Q4: How to prevent crucible cracking?
Never charge cold material into a hot crucible (max ΔT < 400°C).
Cooling rate after melting < 200°C/hour.
Use dedicated crucible tongs (avoid mechanical impact).
Q5: How to prevent crucible cracking?
Never charge cold material into a hot crucible (max ΔT < 400°C).
Cooling rate after melting < 200°C/hour.
Use dedicated crucible tongs (avoid mechanical impact).
Q6:How do you handle payments?
- We require a 30% deposit via T/T, with the balance due before delivery. We also provide product photos prior to final payment.
- Q7:What options do I have before placing an order?
- You can request samples from our sales team to evaluate our products.
- Q8:Is there a minimum order quantity?
No, we fulfill orders based on your specific needs, without a minimum requirement.
Ready to enhance your metal melting operations? Contact us today to discover how our Pure Graphite Crucibles can transform your production processes!
Case Study #1
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Case Study #2
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Testimonials
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- Jane Doe
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- John Doe






