A graphite crucible is a high-temperature container made from carbon/graphite that holds molten metal during melting and pouring. Makers use it for jewelry casting, small foundry projects, and lab work with metals like gold, silver, copper, and aluminum.

• Withstands high heat and repeated heating/cooling cycles.
• Good thermal properties that support efficient, consistent melts.
• Smooth interior can help metal release into ingot molds.
• Available in shapes and sizes to suit different furnaces or torch setups.

On Walmart, you'll find standalone crucibles plus compatible ingot molds and tools, so you can build a setup that fits your project. Be sure to review dimensions and stated capacity before you purchase.

Borax is commonly used as a flux to help reduce oxidation and capture impurities during a melt, especially with precious metals. Whether to use it depends on your specific metal and method.

• Precious metals: A light flux can support cleaner pours.
• Base metals: Some projects use dedicated fluxes or none at all.
• Check instructions: Follow guidance from your metal supplier or project plan.
• Use sparingly: Too much flux can change melt behavior and leave residue.

Work in a well-ventilated area and wear appropriate protective gear. Results can vary based on temperature, technique, and materials, so start conservatively and adjust as your process requires.

It’s easy to shop graphite crucibles here.

• Search graphite crucible or browse Jewelry Casting Supplies.
• Use filters to narrow by shape, cavity count, and capacity.
• Open the specs to confirm inner dimensions and compatible metals.
• Consider kits that include tongs, ingot molds, or fire brick.
• Check customer ratings, Q&A, and photos for practical insights.
• Review available shipping and pickup options for your ZIP code.

Comparing a few listings can help you pick a crucible that fits your furnace or torch and aligns with your casting goals without overbuying.

Makers often choose graphite crucibles for their balanced performance and convenience.

• Thermal performance: They heat efficiently and tolerate repeated cycles.
• Casting-friendly: Smooth walls can help metal release cleanly.
• Versatility: Commonly used for gold, silver, copper, aluminum, and more.
• Selection: Offered in many sizes, from small pours to multi-cavity molds.

As with any crucible, lifespan depends on temperature levels, flux use, and handling. Gentle tools, careful heating, and timely replacement when you see cracks or heavy wear can help maintain consistent results.

Start with your melt size, heat source, and mold plans.

• Capacity: Listings often show gold/silver weight or volume; leave a little headspace.
• Dimensions: Verify inner diameter and height to fit your furnace or torch workflow.
• Metal type: Actual capacity varies with metal density, so plan accordingly.
• Mold match: If you're pouring bars or rounds, align crucible output to mold volume.
• Throughput: Multi-cavity molds suit many small pours; single cavities suit larger pieces.

When unsure, measure your chamber and tools first, then choose the smallest crucible that comfortably supports your target pour. This can help with heat-up time and control.