【DOUBLE RING DESIGN- 5KG Durability Graphite Crucible】Made of natural graphite with superior thermal conductivity, this 5KG crucible features a grooved double-ring flange for secure tong grip and spill-free pouring. Its low thermal expansion ensures easy removal from electric furnaces, say goodbye to metal residue. The use temperature is less than or equal to 1800 ℃, can melt alloys such as gold, silver, platinum, and other precious metals, smelting, casting metals.
【MELT FASTER- Heat Smart】Natural graphite's superior thermal conductivity meets genius design. It will be oxidized and cracked; Pure graphite will start to oxidize at 752 °F （400℃). They withstand temperatures can be 3200 °F if you use Air Electric Furnace. They withstand temperatures can be 5000 °F if you use Vacuum or Gas Protection Furnace. (Pure graphite crucible can NOT be heating by carbon furnace or charcoal kiln)
【AFTER SALE SERVICES- Melt Worry-Free】Lifetime technical help, and 30-day returns.Purity graphite crucible weighing just 622g, it's shockingly lightweight yet industrial-tough. All Products from the TOAUTO will be provided for 1-year warranty after-sales and lifetime technical support, and 30-day return. Premium after-sales service from a high-quality product, we take full responsibility for our promise.
【LARGE COMPACITY- 0 Waste Guarantee】Engineered for flawless pours every time.5KG / 530ML Capacity, can be melted 10.6KG gold,5.6KG silver,5KG copper,1.5KG aluminum.The dual-ring lip and 78mm base diameter lock stability, letting you tilt and pour molten metal smoothly without spills. Stainless steel tongs grip the grooved edges securely, Perfect for intricate jewelry or industrial ingots, ensures precious metal counts.
【CORROSION CRUSHER- Long Service Life】The ultra-dense graphite body laughs off acids, alkalis, and thermal shock. Unlike brittle alternatives, its 30mm-thick walls and protective glaze layer withstand 5000°F in vacuum furnaces.The surface of the graphite crucible has a special glaze layer and dense molding material, which greatly improves the corrosion resistance of the product and extends its service life.
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