Material: Alumina
Crucible Shape : Arc/Cylindrical/Rectangle/Square/Cymbaeform
Type: Heat-Resistant Material
Refractorines: Refractoriness> 2000
Specification: 5ml 10ml 15ml 20ml 25ml 30ml 50ml 100ml 150ml 200ml-2500ml
High alumina purity:al2o3>99%,good corrosion resistance. 1600C in long use,1800C in short use.
Good thermal shock,no easy to crack.
Alumina ceramic crucible is a container made of alumina ceramic material that is resistant to high temperatures and thermal shock. It is commonly used in chemical laboratories for high-temperature applications, such as melting and analyzing metals, or for heating and evaporating liquids.

| Conical Crucible | ||||
| Top Dia. (mm) |
Base Dia. (mm) |
Height (mm) |
Wall Thickness (mm) |
Content (ml) |
| 25 | 18 | 22 | 1.3 | 5 |
| 28 | 20 | 27 | 1.5 | 10 |
| 32 | 21 | 35 | 1.5 | 15 |
| 35 | 18 | 35 | 1.7 | 20 |
| 36 | 22 | 42 | 2 | 25 |
| 39 | 24 | 49 | 2 | 30 |
| 52 | 32 | 50 | 2.5 | 50 |
| 61 | 36 | 54 | 2.5 | 100 |
| 68 | 42 | 80 | 2.5 | 150 |
| 83 | 48 | 86 | 2.5 | 200 |
| 83 | 52 | 106 | 2.5 | 300 |
| 86 | 49 | 135 | 2.5 | 400 |
| 100 | 60 | 118 | 3 | 500 |
| 88 | 54 | 145 | 3 | 600 |
| 112 | 70 | 132 | 3 | 750 |
| 120 | 75 | 143 | 3.5 | 1000 |
| 140 | 90 | 170 | 4 | 1500 |
| 150 | 93 | 200 | 4 | 2000 |
| Cylindrical Crucible | |||
| Diameter (mm) |
Height (mm) |
Wall Thickness | Content (ml) |
| 15 | 50 | 1.5 | 5 |
| 17 | 21 | 1.75 | 3.4 |
| 17 | 37 | 1 | 5.4 |
| 20 | 30 | 2 | 6 |
| 22 | 36 | 1.5 | 10.2 |
| 26 | 82 | 3 | 34 |
| 30 | 30 | 2 | 15 |
| 35 | 35 | 2 | 25 |
| 40 | 40 | 2.5 | 35 |
| 50 | 50 | 2.5 | 75 |
| 60 | 60 | 3 | 130 |
| 65 | 65 | 3 | 170 |
| 70 | 70 | 3 | 215 |
| 80 | 80 | 3 | 330 |
| 85 | 85 | 3 | 400 |
| 90 | 90 | 3 | 480 |
| 100 | 100 | 3.5 | 650 |
| 110 | 110 | 3.5 | 880 |
| 120 | 120 | 4 | 1140 |
| 130 | 130 | 4 | 1450 |
| 140 | 140 | 4 | 1850 |
| 150 | 150 | 4.5 | 2250 |
| 160 | 160 | 4.5 | 2250 |
| 170 | 170 | 4.5 | 3350 |
| 180 | 180 | 4.5 | 4000 |
| 200 | 200 | 5 | 5500 |
| 220 | 220 | 5 | 7400 |
| 240 | 240 | 5 | 9700 |
| Rectangled Crucible | |||||
| Length (mm) |
Width (mm) |
Height (mm) |
Length (mm) |
Width (mm) |
Height (mm) |
| 30 | 20 | 16 | 100 | 60 | 30 |
| 50 | 20 | 20 | 100 | 100 | 30 |
| 50 | 40 | 20 | 100 | 100 | 50 |
| 60 | 30 | 15 | 110 | 80 | 40 |
| 75 | 52 | 50 | 110 | 110 | 35 |
| 75 | 75 | 15 | 110 | 80 | 40 |
| 75 | 75 | 30 | 120 | 75 | 40 |
| 75 | 75 | 45 | 120 | 120 | 30 |
| 80 | 80 | 40 | 120 | 120 | 50 |
| 85 | 65 | 30 | 140 | 140 | 40 |
| 90 | 60 | 35 | 150 | 150 | 50 |
| 100 | 20 | 15 | 200 | 100 | 25 |
| 100 | 20 | 20 | 200 | 100 | 50 |
| 100 | 30 | 25 | 200 | 150 | 5 |
| 100 | 40 | 20 | |||
| Item | Test Condition | 78-82% Al2O3 | 95% Al2O3 | 99% Al2O3 | 99.5% Al2O3 | ||
| Physical properties | Density | g/m³ | >2.9 | >3.6 | 3.89 | 3.96 | |
| Moisture absorption | % | 5-7 | 0 | 0 | 0 | ||
| Mechanical properties | ROHS Hardness | 60-70 | ≥85 | ≥89 | ≥89 | ||
| Flexural strength | psiX103 | 20℃ | 358 | 550 | 550 | ||
| Compressive strength | psiX103 | 20℃ | 2068(300) | 2600(377) | 2600(377) | ||
| Fracture toughness | Mpa.m3/2 | K(l c) | 4.3 | 5.6 | 6 | ||
| Thermal properties | Maximum use temperature | ℃ | 1350 | 1450 | 1600 | 1650 | |
| Thermal expansion coefficient | 1X10-6/℃ | (25-1000℃) | 6.1-6.6 | 7.6 | 7.9 | 8.2 | |
| Thermal shock resistance | ℃ | Tc | very good | 250 | 200 | 200 | |
| Thermal conductivity | w/mok | 20℃ | 16 | 30 | 30.4 | ||
| Electrical properties | Volume resistivity | Ohm/cm2 | 100℃ | >1013 | >1013 | >1014 | >1014 |
| Dielectric breakdown strength | KV/mm | 8.7(220) | 8.7(220) | 8.7(220) | 8.7(220) | ||
| Dielectric constant | (E) | 1MHz25℃ | 9 | 9 | 9.7 | 9.7 | |
| Dielectric constant (100MHz) | (E) | 9.5 | |||||