High density graphite rods are precision-engineered carbon materials known for their superior strength, excellent thermal conductivity, and outstanding resistance to extreme temperatures. Manufactured from high-purity graphite with optimized density, these rods offer stable performance in harsh industrial environments, making them ideal for high-temperature furnaces, chemical processing, metal casting, and machining applications. With uniform structure, low porosity, and excellent chemical stability, our graphite rods ensure long service life and consistent performance under demanding working conditions.

Technical Specifications

Item	Unit	φ250-400	φ450-600
Resistivity Max (uΩm)	Electrode	6.2	6.5
	Nipple	4.5	4.5
Flexural Strength Min (MPa)	Electrode	11.0	11.0
	Nipple	20.0	20.0
Elastic Modulus Max (GPa)	Electrode	12.0	12.0
	Nipple	16.0	16.0
Bulk Density Min (g/cm³)	Electrode	1.66	1.66
	Nipple	1.74	1.74
C.T.E Max (10⁻⁶/°C)	Electrode	2.0	2.0
	Nipple	1.6	1.6
Ash Max (%)	Electrode	0.3	0.3
	Nipple	0.3	0.3

Key Features

High Purity Material: Carbon content ≥ 99%, ensuring minimal impurities and contamination.
Excellent Thermal Conductivity: Promotes efficient and even heat transfer in furnace or heating systems.
Low Electrical Resistivity: Provides stable and efficient current flow in electrochemical and EDM applications.
Superior Temperature Resistance: Operates safely above 3000°C without deformation.
Oxidation & Corrosion Resistance: Excellent durability in both oxidizing and reducing atmospheres.
Smooth Machined Surface: Precisely processed for tight dimensional tolerance and easy installation.
Customizable Dimensions: Available in different diameters, lengths, and grades to suit specific applications.

Typical Applications

High density graphite rods are widely used across various industries:

High-Temperature Furnaces: Used as heating elements, insulation rods, and support components.
Metal Casting & Foundry Industry: Ideal for molds, continuous casting dies, and casting support rods.
Chemical & Petrochemical Processing: Suitable for reaction vessels, electrodes, and components exposed to corrosive chemicals.
Glass and Ceramics Manufacturing: Used in stirring rods, tooling parts, and thermal support components.
Electrical and Electronics Industry: Applied in electrodes, battery materials, semiconductor production tools, and EDM (Electrical Discharge Machining).

Production Details

Raw Material Selection: Premium-grade petroleum coke and needle coke ensure high purity and consistent graphite quality.
Forming Process: Rods are shaped using isostatic pressing or vibration molding depending on required density and size.
High-Temperature Baking & Graphitization: Materials are baked above 1000°C and then graphitized at 2500–3000°C for improved conductivity and stability.

Packing and Shipping Details

Packing: Each graphite rod is wrapped in a plastic film, cushioned with foam or kraft paper, and packed in strong wooden cases or pallets to prevent damage during transportation.
Labeling: Each package is clearly marked with product grade, batch number, and specifications.
Shipping Methods:
- By sea (recommended for bulk orders)
- By air or express (for urgent or small quantity orders)
Delivery Time: Typically 7–15 working days depending on order quantity and customization requirements.