DECENT Clay Crucibles are meticulously designed to meet the rigorous demands of modern fire assay and high-temperature metallurgical operations. Ideal for holding and melting crushed mineral samples and various metal alloys, these crucibles perform flawlessly in fire assay furnaces.
The secret to their superior performance lies in a unique, scientifically formulated blend of fire clay, featuring low caustic soda, low iron content, and high silicon content. This advanced composition, combined with a proprietary curing and pressing process, results in crucibles with extraordinary mechanical strength and the ability to withstand severe thermal shock up to 1650℃. They are specifically built to endure extremely corrosive fire assay environments and significant temperature fluctuations over multiple uses.
Ingredients and Percentage
| Silica(SiO₂) | 60%~65% |
| Calcium Oxide | <0.6% |
| Aluminum Oxide | 30%~34% |
| Ferric Oxide | <2% |
| Titanium Oxide | <2% |
| Sodium Oxide | <0.1% |
| Potassium Oxide | <0.2% |
Drawing on over 3000 years of history in the gold refining industry, our clay crucibles continue this legacy by delivering high-temperature resistance, excellent heat conduction, and impressive reusability. Users can typically expect 5 reuses, with some instances demonstrating reusability up to 9 times or more, significantly enhancing operational efficiency and cost-effectiveness.
Manufactured using the latest automated technology, we ensure consistent crucible size and quality across an annual production capacity of 6.5 million pieces. Our commitment to quality is further reinforced by stringent testing protocols, including visual and physical inspections for consistency and durability, and rigorous usage tests that simulate fire assay processes to guarantee no lead sputtering or structural damage after repeated firings.
Available in standard specifications ranging from 30g to 65g, with customization options to meet your precise needs, our Clay Crucibles are securely packed in wooden boxes or cartons on pallets for safe transport.
| Model No. | Top OD (mm) | Base OD (mm) | Height (mm) | Pcs/Crate | Crate /20′ Container |
| DCC20 | 76 | 46 | 98 | 3000 | 20 |
| DCC30 | 85 | 56 | 105 | 2574 | 20 |
| DCC40 | 90 | 56 | 135 | 2000 | 20 |
| DCC50 | 105 | 56 | 150 | 1530 | 20 |
| DCC55 | 90 | 56 | 155 | 1500 | 20 |
| DCC65 | 105 | 56 | 165 | 1400 | 20 |
| DCC75L | 120 | 75 | 160 | 1000 | 20 |
| DCC75S | 110 | 60 | 200 | 840 | 20 |
| DCC75I | 125 | 61 | 210 | 672 | 20 |
| AC1 | 105 | 56 | 130 | 880 | 20 |
| AC2 | 110 | 70 | 130 | 880 | 20 |
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QINGDAO DECENT GROUP consists of Decent Group Limited, Qingdao Decent Electromechanical Tech Co., Ltd., Qingdao Mars Labtech Co., Ltd. and Hunan Kilnsware Industrial Ceramics Co., Ltd.
