Which graphite is used for crucibles and ingot molds?

Depending on metal, temperature, and thermal cycle we recommend vibro-molded, molded, or isostatic grades. We supply crucibles, ingot molds, sintering molds, and pouring spouts as catalog or custom parts.

Which graphite grade is used in continuous casting dies?

It is selected on density, grain size, and thermal conductivity, according to the metal, the format, and the casting speed. Fine-grain, high-density grades hold the cast surface finish better; comparable values are in the datasheets.

Why do marks or tears appear on the product?

Usually from local sticking, localized die wear, or uneven heat extraction. Before changing grade it is worth checking the condition of the inner surface and the uniformity of the cooling.

Can dies be reproduced from a used part?

Yes. From the used die or its drawing, the internal geometry is reproduced — including entry tapers and the calibration zone — and an equivalent grade proposed. This is common when the line no longer has original spares.

Does the same geometry serve different alloys?

Not necessarily. The solidification range and casting speed change how heat is distributed along the die, so calibration length and grade may need adjusting when the alloy changes.

Graphite die for continuous casting of non-ferrous metal

Metallurgical applications

Continuous-casting components

Graphite components for channels, nozzles and plates in continuous metal casting processes.

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Continuous casting forming component

Also known as: Graphite continuous casting dies · Continuous casting moulds · Graphite casting nozzles · Graphite dies for wire rod and billet

[ Technical summary ]

In continuous casting, molten metal passes through a cooled graphite die or mould where it solidifies and takes its section: wire rod, billet, strip, or tube. The part works with metal permanently moving against its wall, combining erosion, a severe thermal gradient, and the need for non-stick behaviour. Graphite conducts heat toward the cooling, is not wetted by non-ferrous metals, and machines to the precision the exit section demands.

Continuous casting gives continuous control over the transformation of liquid metal into a solid state, producing semi-finished products directly: wires, rods, tubes, strips, and custom sections. The graphite die does two jobs at once: it shapes the metal and extracts the heat needed to solidify it. Confirm metal, temperature, and geometry with applications engineering.

[ Problem it solves ]

Solidify moving metal to a constant section, extracting heat in a controlled way and without the product sticking to the wall, which is what causes tearing and line stoppages.

Operating conditions

Non-ferrous continuous casting (wire, billet, strip, tube)
Solidification dies and molds
Liquid-metal channeling
Controlled cooling

When it is suitable

Wire rod, billet, strip, or tube is cast continuously
The product must leave with constant section and finish
Heat extraction must be even along the die
Dies must be replaced with the exact line geometry

When it may not be suitable

The contacting metal readily dissolves carbon and the alloy cannot tolerate it
Die cooling is uncontrolled or uneven
The part sits in air at high temperature between casts without protection

Process challenges

Metal-flow erosion
Thermal shock
Metal contamination
Wrong grade for alloy or cast format

Advantages

Thermal shock resistance
Machining of precise channels and cavities
Good service life with the right grade for the metal

Limitations

Wear from erosion and cycling
Wrong grade can contaminate the metal
Service life depends on flow and temperature

[ Critical selection variables ]

These variables define the grade and the geometry. Actual values are confirmed against the grade datasheet.

Molten metal or alloy in contactDecisive
Casting speedDecisive
Heat-extraction rateDecisive
Geometry and tolerancesDecisive
Operating temperatureDecisive
Surface finish required on the partRelevant
Required purity and allowable contaminationRelevant

[ Required material properties ]

Properties that guide selection. Numerical values come from each grade's datasheet.

Critical properties

Thermal shock resistance
Non-wetting by molten metal
Thermal conductivity
Grain size

Secondary properties

Bulk density
Wear resistance
Dimensional stability
Machinability

[ Related ]

[ Frequently asked questions ]

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Technical content reviewed by ESGRAF — Last reviewed: September 8, 2026

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