Graphite Ingot Manufacturer
We are a prominent original engineering and design manufacturer of graphite ingots: high-purity graphite blocks, bars, and molds typically used for casting, refining, and smelting of non-ferrous metals.
Used for precision casting and forming bars of high-value metals including gold, silver, platinum, and palladium.
Our graphite ingots offer a cost-effective alternative to traditional molds thanks to their chemical stability, durable physical properties, and ease of machining.
Used during manufacturing, graphite ingots cool down molten glass without cracking under extreme heat.
Graphite ingots make ideal crucibles for chemical testing and experiments, providing a stable environment for samples to be melted, combined, and analyzed.
Made From High-Grade Raw Materials
We produce ingots using superior-quality raw graphite, typically either molded or isostatically pressed. The increased density and small particle size of this grade of graphite make it the best for high-volume runs and complex or intricate mold designs.
Featuring one mold cavity per block, our singular ingots are great for high-precision casting or small-batch metal refining.
Multiple mold cavities in one ingot allow you to cast several uniform pieces simultaneously, increasing efficiency in high-volume operations.
Our standard rectangular ingots are commonly used for casting precious metal bars like gold and silver.
Designed with a steeper, 15° wall taper, our kit-kat style ingots have a deeper and longer cavity for easier removal of cast metal.
A circular design with a slight taper yields coin-shaped ingots, typically used for metals like copper, silver, or gold.
A custom combination of various shapes and sizes allows you to produce several variations in a single convenient casting cycle.
We manufacture bespoke ingots with unique shapes, dimensions, and configurations to suit your need for customized components or products.
For particularly large or complex designs, like hollow components, our two-part interlocking ingots create a closed cavity for delicate casting.
Graphite Ingot Applications
Our graphite ingots are incredibly versatile and can be custom-machined to your unique specifications, making them ideal for a wide range of industrial uses.
- Centrifugal casting
- Glass production
- Pressure casting
- Continuous casting
- Metal ingot forming
- Chemical processing


Graphite Ingot Sizes
Review our range of standard graphite ingot mould sizes, corresponding to the metal weight they’re designed to cast. We can also create ingots according to your existing technical drawings or our engineers can work with you to create a bespoke solution using advanced CAD software.
- 1 Troy Ounce (1” x 0.5”): Used to cast small bars or coins for testing or jewelry.
- 5 Troy Ounce (2” x 1” x 0.75”): Suitable for small-scale refineries.
- 10 Troy Ounce (3” x 1.5” x 1”): Popular for retail bullion production.
- 50 Troy Ounce (5” x 2.5” x 1.5”): Typical in labs for material analysis.
- 100 Troy Ounce (6” x 3” x 2”): Commonly utilized in precious metal refineries.
- 400 Troy Ounce (7.5” x 5.5 x 3.75”): Standard for large bullion.
Graphite Ingot Specifications
- Purity: We use ultra-pure graphite of above 99% which ensures minimal contamination.
- Thermal Conductivity: Typically 90 to 130 W/mK for even heat distribution and consistent casting results.
- Pressure Tolerance: Depending on the grade, our ingots usually fall within the range of 40 to 125 MPa.
- Density: Generally between 1.7 and 1.9g/cm³ for improved mechanical stability and thermal retention.
- Finish: A smooth inner surface ensures no residue remains and supports easy extraction.
- Ash Content: Our graphite ingots boast low impurity levels, with ash content often below 0.1%.

Ordering Graphite Ingots From EastCarbon
- Send us your graphite ingot requirements
- Agree on the final details with your account manager
- Schedule the manufacturing process
- Your ingots are produced at the EastCarbon facilities
- Receive your order via air, land, or sea freight

Graphite-Compatible Metals
Our graphite ingots are most commonly employed in aluminum, gold, and silver processing to create easily-stackable bars. Thanks to their chemically inert status, you can also use them in workshops and factories in the manipulation of metals like lead, tin, brass, bronze, copper, tin, nickel, titanium, and zinc.

Unique Features Of Our Graphite Ingots
With high strength and thermal resistance, our graphite ingots are not only reusable but extremely durable, offering a long service life. Used properly, they will not warp or deform, even under immense heat, and they won’t deteriorate or corrode if you store them correctly.
Why Choose Us?
At EastCarbon, we meld decades of experience in carbon and graphite manufacturing with cutting-edge technology and world-class production facilities. Our dedication to precision engineering and excellent service has earned us a reputation as a trusted OEM and ODM partner for industrial clients worldwide.


“As a procurement manager at a metal casting facility I recently ordered 20 graphite ingot molds from EastCarbon which we use for melting and refining bulk metals. They arrived ahead of schedule which was a big plus. Also the quality is good. They’ve held up to heavy use without cracking. Very professional service.”

We have deep industry knowledge, making us a trusted supplier across industries including aerospace, metallurgy, and electronics.

Our skilled engineering team can tailor the design of your graphite ingots to meet your precise needs.

We offer efficient turnaround times and reliable delivery, ensuring you receive the ingots when needed with minimal hassle.

Our graphite ingots have proven results in high-demand applications and are an economical alternative to metal molds.
Frequently Asked Questions
We use graphite of the highest grade to manufacture our ingots, including isostatic graphite, fine-grain graphite, and high-density graphite. This reduces the risk of contamination which is crucial in applications like precious metal processing or material testing.
Other types of graphite, like flexible (expanded) graphite and HOP graphite, are unsuitable because they lack physical and chemical properties like rigidity and stability for mold applications.
Yes, we have a range of industry-standard ingot sizes for sale, including options for 4 kg and 5 oz metal pours. We can also create bespoke ingot molds using CAD software depending on your requirements.
If you’re stuck on where to buy graphite ingot molds, let EastCarbon take care of your order. We have a reputation for excellence and immense production capabilities at our manufacturing plant in China. Our extremely stringent quality standards are reflected in our plentiful long-term client relationships and positive feedback, as well as international recognition in the form of awards and certification. All our products meet ICO and CE regulatory requirements.
While the cost of our graphite ingot products varies, we endeavor to provide you with the best available price. We use the latest technology and energy-efficient machinery where possible to keep costs down and pass on the savings to you, our end client.
Our graphite ingots are designed for casting, melting, and refining precious metals like gold, silver, and platinum due to their excellent thermal stability and their non-reactive surface. Non-ferrous metals like zinc, nickel, aluminum, copper, and copper alloys can also be handled in our graphite ingots. If you have more specific needs, we recommend discussing them with our knowledgeable team of experts via phone or email.
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